<div id="pf1" class="pf w0 h0" data-page-no="1"><div class="pc pc1 w0 h0"><img class="bi x0 y0 w1 h1" alt="" src="https://files.passeidireto.com/0203c892-ddaf-475c-b882-1a23f8fb234a/bg1.png"><div class="t m0 x1 h2 y1 ff1 fs0 fc0 sc0 ls1 ws1">1 </div><div class="t m0 x0 h2 y2 ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m1 x2 h3 y3 ff2 fs1 fc1 sc0 ls1 ws1"> </div><div class="t m0 x3 h4 y4 ff3 fs0 fc1 sc0 ls1 ws1">Instituto Federal de Edu<span class="_0 blank"></span>cação Ciência e Tecnolo<span class="_0 blank"></span>gia Fluminense </div><div class="t m0 x0 h4 y5 ff3 fs0 fc1 sc0 ls1 ws1"> </div><div class="t m0 x0 h4 y6 ff3 fs0 fc0 sc0 ls1 ws1">Disciplina: Materiais e En<span class="_0 blank"></span>saios <span class="_1 blank"> </span> <span class="_2 blank"> </span> <span class="_2 blank"> </span> <span class="_2 blank"> </span> </div><div class="t m0 x0 h2 y7 ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m0 x4 h2 y8 ff1 fs0 fc0 sc0 ls1 ws0">1-<span class="ff4 ls0 ws1"> </span><span class="ws1">Quais são as principais info<span class="_0 blank"></span>rmações que podem ser ob<span class="_0 blank"></span>tidas do diagrama de fases<span class="_0 blank"></span>? </span></div><div class="t m2 x4 h5 y9 ff1 fs2 fc2 sc0 ls1 ws1">Os <span class="_0 blank"></span>diagrama<span class="_3 blank"> </span>s <span class="_0 blank"></span>de fases são <span class="_0 blank"></span>construíd<span class="_3 blank"> </span>os <span class="_0 blank"></span>admitindo<span class="_3 blank"> </span>-se condições <span class="_0 blank"></span>de equilíbrio e <span class="_0 blank"></span>fornece<span class="_3 blank"> </span>m <span class="_0 blank"></span>informaçõ<span class="_3 blank"> </span>es </div><div class="t m2 x0 h5 ya ff1 fs2 fc2 sc0 ls1 ws1">sobre <span class="_3 blank"> </span>o <span class="_4 blank"> </span>comportament<span class="_3 blank"> </span>o <span class="_3 blank"> </span>dos <span class="_4 blank"> </span>materiais. <span class="_3 blank"> </span>Diagra<span class="_3 blank"> </span>mas <span class="_3 blank"> </span>de <span class="_4 blank"> </span>fases <span class="_4 blank"> </span>em <span class="_3 blank"> </span>Estados <span class="_4 blank"> </span>de <span class="_3 blank"> </span>Eq<span class="_3 blank"> </span>uilíbrio <span class="_3 blank"> </span>for<span class="_3 blank"> </span>necem <span class="_3 blank"> </span>relaçõ<span class="_3 blank"> </span>es </div><div class="t m2 x0 h5 yb ff1 fs2 fc2 sc0 ls1 ws1">entre a <span class="_3 blank"> </span>temperatura, <span class="_3 blank"> </span>as composições <span class="_3 blank"> </span>e as qu<span class="_3 blank"> </span>antidades <span class="_3 blank"> </span>de cada <span class="_3 blank"> </span>fase na <span class="_3 blank"> </span>condição de <span class="_3 blank"> </span>equilíbrio. <span class="_3 blank"> </span>Ele prediz </div><div class="t m2 x0 h5 yc ff1 fs2 fc2 sc0 ls1 ws1">as <span class="_5 blank"> </span>transformaçõe<span class="_3 blank"> </span>s <span class="_5 blank"> </span>de <span class="_5 blank"> </span>fases, <span class="_5 blank"> </span>permite <span class="_5 blank"> </span>a <span class="_5 blank"> </span>visualização da <span class="_5 blank"> </span>fusão e<span class="_0 blank"></span> solidificação <span class="_5 blank"> </span>e <span class="_5 blank"> </span>dá informações <span class="_5 blank"> </span>sobre </div><div class="t m2 x0 h5 yd ff1 fs2 fc2 sc0 ls1 ws1">microestrutura <span class="_3 blank"> </span>e propriedades me<span class="_3 blank"> </span>cânicas em função d<span class="_3 blank"> </span>a temperatura <span class="_3 blank"> </span>e composição. </div><div class="t m0 x5 h2 ye ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m0 x4 h2 yf ff1 fs0 fc0 sc0 ls1 ws0">2-<span class="ff4 ls0 ws1"> </span><span class="ws1">Qual a diferença entre fas<span class="_0 blank"></span>es de equilíbrio e fase de me<span class="_0 blank"></span>taestáveis? </span></div><div class="t m2 x4 h5 y10 ff1 fs2 fc2 sc0 ls1 ws1">As <span class="_3 blank"> </span>fases <span class="_3 blank"> </span>d<span class="_3 blank"> </span>e <span class="_3 blank"> </span>equilíb<span class="_3 blank"> </span>rio <span class="_3 blank"> </span>referem-<span class="_3 blank"> </span>se <span class="_3 blank"> </span>ao <span class="_3 blank"> </span>estado <span class="_4 blank"> </span>de <span class="_3 blank"> </span>equ<span class="_3 blank"> </span>ilíbrio <span class="_4 blank"> </span>de <span class="_3 blank"> </span>um <span class="_4 blank"> </span>sistema <span class="_3 blank"> </span>co<span class="_3 blank"> </span>m <span class="_3 blank"> </span>2 <span class="_3 blank"> </span>ou <span class="_4 blank"> </span>mais <span class="_3 blank"> </span>fases, <span class="_4 blank"> </span>cujas </div><div class="t m2 x0 h5 y11 ff1 fs2 fc2 sc0 ls1 ws1">características <span class="_1 blank"> </span>não <span class="_1 blank"> </span>se <span class="_1 blank"> </span>alteram <span class="_6 blank"> </span>com <span class="_6 blank"> </span>o <span class="_6 blank"> </span>te<span class="_3 blank"> </span>mpo. <span class="_6 blank"> </span>Geralm<span class="_3 blank"> </span>ente <span class="_6 blank"> </span>são <span class="_1 blank"> </span>representadas <span class="_1 blank"> </span>nos <span class="_6 blank"> </span>diagr<span class="_3 blank"> </span>amas <span class="_6 blank"> </span>por <span class="_6 blank"> </span>letra<span class="_3 blank"> </span>s </div><div class="t m2 x0 h5 y12 ff1 fs2 fc2 sc0 ls1 ws1">gregas. </div><div class="t m2 x4 h5 y13 ff1 fs2 fc2 sc0 ls1 ws1">Nas fases <span class="_3 blank"> </span>metaestáveis <span class="_3 blank"> </span>a situa<span class="_3 blank"> </span>ção de <span class="_3 blank"> </span>equilíbrio p<span class="_3 blank"> </span>ode levar mu<span class="_3 blank"> </span>ito tempo <span class="_3 blank"> </span>para ser <span class="_3 blank"> </span>alcançada<span class="_3 blank"> </span>, ou <span class="_3 blank"> </span>seja, </div><div class="t m2 x0 h5 y14 ff1 fs2 fc2 sc0 ls1 ws1">propriedad<span class="_3 blank"> </span>es <span class="_3 blank"> </span>ou <span class="_3 blank"> </span>cara<span class="_3 blank"> </span>cterísticas <span class="_3 blank"> </span>mudam <span class="_4 blank"> </span>lentamente <span class="_4 blank"> </span>com <span class="_3 blank"> </span>o<span class="_3 blank"> </span> <span class="_3 blank"> </span>tempo, <span class="_4 blank"> </span>ou <span class="_3 blank"> </span>seja, <span class="_4 blank"> </span>o <span class="_3 blank"> </span>estado <span class="_4 blank"> </span>de <span class="_3 blank"> </span>equilíbrio <span class="_4 blank"> </span>não <span class="_4 blank"> </span>é </div><div class="t m2 x0 h5 y15 ff1 fs2 fc2 sc0 ls1 ws1">nunca <span class="_3 blank"> </span>alcançad<span class="_3 blank"> </span>o. N<span class="_3 blank"> </span>o en<span class="_3 blank"> </span>tanto, n<span class="_3 blank"> </span>ão <span class="_3 blank"> </span>há <span class="_3 blank"> </span>mudanças <span class="_3 blank"> </span>muito <span class="_3 blank"> </span>perceptíveis <span class="_3 blank"> </span>com <span class="_3 blank"> </span>o <span class="_3 blank"> </span>tempo <span class="_3 blank"> </span>na <span class="_3 blank"> </span>microestrutur<span class="_3 blank"> </span>a d<span class="_3 blank"> </span>as </div><div class="t m2 x0 h5 y16 ff1 fs2 fc2 sc0 ls1 ws1">fases metaestáv<span class="_3 blank"> </span>eis. </div><div class="t m0 x5 h2 y17 ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m0 x4 h2 y18 ff1 fs0 fc0 sc0 ls1 ws0">3-<span class="ff4 ls0 ws1"> </span><span class="ws1">Que é um sistema isom<span class="_0 blank"></span>orfo? Cite um exemplo.<span class="_0 blank"></span> </span></div><div class="t m2 x4 h5 y19 ff1 fs2 fc2 sc0 ls1 ws1">Um sistema isomor<span class="_3 blank"> </span>fo é um tip<span class="_3 blank"> </span>o de sistema em que <span class="_3 blank"> </span>seus constituint<span class="_3 blank"> </span>es possuem a mes<span class="_3 blank"> </span>ma estrutura e </div><div class="t m2 x0 h5 y1a ff1 fs2 fc2 sc0 ls1 ws1">a solubilidad<span class="_3 blank"> </span>e é completa. </div><div class="t m2 x4 h5 y1b ff1 fs2 fc2 sc0 ls1 ws1">O <span class="_3 blank"> </span>sistema <span class="_3 blank"> </span>cobre-níquel <span class="_3 blank"> </span>é <span class="_3 blank"> </span>um <span class="_3 blank"> </span>exemplo<span class="_3 blank"> </span> de <span class="_3 blank"> </span>sist<span class="_3 blank"> </span>ema <span class="_3 blank"> </span>isomorfo <span class="_3 blank"> </span>devido <span class="_3 blank"> </span>a <span class="_3 blank"> </span>completa <span class="_3 blank"> </span>solub<span class="_3 blank"> </span>ilidade <span class="_3 blank"> </span>dos <span class="_3 blank"> </span>dois </div><div class="t m2 x0 h5 y1c ff1 fs2 fc2 sc0 ls1 ws1">componente<span class="_3 blank"> </span>s dos estados líq<span class="_3 blank"> </span>uido e sólido. </div><div class="t m0 x5 h2 y1d ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m0 x4 h2 y1e ff1 fs0 fc0 sc0 ls1 ws0">4-<span class="ff4 ls0 ws1"> </span><span class="ws1">Por <span class="_7 blank"> </span>que, <span class="_8 blank"> </span>na <span class="_8 blank"> </span>prática, <span class="_8 blank"> </span>as <span class="_8 blank"> </span>microestruturas <span class="_8 blank"> </span>podem <span class="_8 blank"> </span>não <span class="_7 blank"> </span>ser <span class="_8 blank"> </span>exatamente <span class="_8 blank"> </span>iguais <span class="_8 blank"> </span>às <span class="_7 blank"> </span>de </span></div><div class="t m0 x5 h2 y1f ff1 fs0 fc0 sc0 ls1 ws1">equilíbrio? <span class="_0 blank"></span>E<span class="_0 blank"></span>m <span class="_0 blank"></span>que <span class="_9 blank"></span>circunstância <span class="_9 blank"></span>a <span class="_9 blank"></span>microestrutura <span class="_9 blank"></span>será <span class="_9 blank"></span>exatamente <span class="_9 blank"></span>igual <span class="_9 blank"></span>à <span class="_9 blank"></span>de <span class="_9 blank"></span>equilíbrio? <span class="_0 blank"></span> </div><div class="t m2 x4 h5 y20 ff1 fs2 fc2 sc0 ls1 ws1">Porque não<span class="_3 blank"> </span> há tempo para a difusão completa e as microest<span class="_3 blank"> </span>ruturas não são exatamente i<span class="_3 blank"> </span>guais às do </div><div class="t m2 x0 h5 y21 ff1 fs2 fc2 sc0 ls1 ws1">equilíbrio. Só <span class="_3 blank"> </span>será igual a de e<span class="_3 blank"> </span>quilíbrio com velo<span class="_3 blank"> </span>cidade de solidificação<span class="_3 blank"> </span> lenta. </div><div class="t m0 x5 h2 y22 ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m0 x4 h2 y23 ff1 fs0 fc0 sc0 ls1 ws0">5-<span class="ff4 ls0 ws1"> </span><span class="ws1">Diferencie reação eutética<span class="_0 blank"></span> de eutetóide e peritética.<span class="_0 blank"></span> </span></div><div class="t m2 x4 h5 y24 ff1 fs2 fc2 sc0 ls1 ws1">Reação <span class="_3 blank"> </span>eutética<span class="_3 blank"> </span>: <span class="_3 blank"> </span> <span class="_3 blank"> </span>reação <span class="_4 blank"> </span>na <span class="_4 blank"> </span>qual <span class="_3 blank"> </span>a <span class="_4 blank"> </span>fase <span class="_3 blank"> </span>líquida <span class="_4 blank"> </span>se <span class="_3 blank"> </span>transforma <span class="_4 blank"> </span>em <span class="_3 blank"> </span>duas <span class="_4 blank"> </span>fases <span class="_3 blank"> </span>sólidas <span class="_4 blank"> </span>distinta<span class="_3 blank"> </span>s <span class="_3 blank"> </span>com <span class="_3 blank"> </span>o </div><div class="t m2 x0 h5 y25 ff1 fs2 fc2 sc0 ls1 ws1">resfriamento d<span class="_3 blank"> </span>a temperatura.<span class="_3 blank"> </span> </div><div class="t m2 x4 h5 y26 ff1 fs2 fc2 sc0 ls1 ws1">Reação <span class="_0 blank"></span>eutetóide: <span class="_0 blank"></span>reação <span class="_0 blank"></span>na <span class="_0 blank"></span>qual <span class="_0 blank"></span>uma <span class="_0 blank"></span>fase <span class="_9 blank"></span>sólida <span class="_0 blank"></span>se <span class="_0 blank"></span>transfor<span class="_3 blank"> </span>ma <span class="_9 blank"></span>em <span class="_0 blank"></span>duas <span class="_0 blank"></span>outras <span class="_0 blank"></span>fases <span class="_9 blank"></span>só<span class="_3 blank"> </span>lidas <span class="_9 blank"></span>d<span class="_3 blank"> </span>istintas </div><div class="t m2 x0 h5 y27 ff1 fs2 fc2 sc0 ls1 ws1">com o resfriament<span class="_3 blank"> </span>o da temperatu<span class="_3 blank"> </span>ra. </div><div class="t m2 x4 h5 y28 ff1 fs2 fc2 sc0 ls1 ws1">Reação peritética: reação na qual uma fase sólida na presença de uma solução líquida se transforma </div><div class="t m2 x0 h5 y29 ff1 fs2 fc2 sc0 ls1 ws1">em <span class="_3 blank"> </span>u<span class="_3 blank"> </span>ma <span class="_4 blank"> </span>fase <span class="_4 blank"> </span>sólida <span class="_4 blank"> </span>distinta<span class="_3 blank"> </span>. <span class="_3 blank"> </span>É<span class="_3 blank"> </span> <span class="_3 blank"> </span>o <span class="_4 blank"> </span>pon<span class="_3 blank"> </span>to <span class="_4 blank"> </span>onde <span class="_4 blank"> </span>um <span class="_3 blank"> </span>líq<span class="_3 blank"> </span>uido <span class="_4 blank"> </span>e <span class="_4 blank"> </span>um <span class="_4 blank"> </span>sólido <span class="_4 blank"> </span>passa <span class="_4 blank"> </span>para <span class="_4 blank"> </span>u<span class="_3 blank"> </span>m <span class="_3 blank"> </span>único<span class="_3 blank"> </span> <span class="_3 blank"> </span>sólido<span class="_3 blank"> </span> <span class="_3 blank"> </span>co<span class="_3 blank"> </span>m <span class="_3 blank"> </span>o<span class="_3 blank"> </span> </div><div class="t m2 x0 h5 y2a ff1 fs2 fc2 sc0 ls1 ws1">resfriamento d<span class="_3 blank"> </span>a temperatura. </div><div class="t m0 x5 h2 y2b ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m0 x4 h2 y2c ff1 fs0 fc0 sc0 ls1 ws0">6-<span class="ff4 ls0 ws1"> </span><span class="ws1">Em <span class="_1 blank"> </span>relação <span class="_1 blank"> </span>a <span class="_a blank"> </span>composição <span class="_6 blank"> </span>como <span class="_a blank"> </span>são <span class="_1 blank"> </span>classificadas <span class="_1 blank"> </span>as <span class="_1 blank"> </span>ligas <span class="_a blank"> </span>com <span class="_1 blank"> </span>composição <span class="_1 blank"> </span>inferior <span class="_1 blank"> </span>à </span></div><div class="t m0 x5 h2 y2d ff1 fs0 fc0 sc0 ls1 ws1">composição eutética e eut<span class="_0 blank"></span>etóide? </div><div class="t m2 x4 h5 y2e ff1 fs2 fc2 sc0 ls1 ws1">Hipoeutética e h<span class="_3 blank"> </span>ipoeutetóide. </div><div class="t m2 x0 h5 y2f ff1 fs2 fc2 sc0 ls1 ws1"> </div><div class="t m0 x0 h2 y30 ff1 fs0 fc0 sc0 ls1 ws1"> <span class="_b blank"> </span> </div></div><div class="pi" data-data='{"ctm":[1.000000,0.000000,0.000000,1.000000,0.000000,0.000000]}'></div></div> <div id="pf2" class="pf w0 h0" data-page-no="2"><div class="pc pc2 w0 h0"><img class="bi x6 y31 w2 h6" alt="" src="https://files.passeidireto.com/0203c892-ddaf-475c-b882-1a23f8fb234a/bg2.png"><div class="t m0 x1 h2 y1 ff1 fs0 fc0 sc0 ls1 ws1">2 </div><div class="t m0 x0 h2 y2 ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m0 x4 h2 y32 ff1 fs0 fc0 sc0 ls1 ws0">7-<span class="ff4 ls0 ws1"> </span><span class="ws1">De <span class="_3 blank"> </span>acordo <span class="_3 blank"> </span>com <span class="_3 blank"> </span>os <span class="_4 blank"> </span>diagra<span class="_0 blank"></span>mas <span class="_3 blank"> </span>de <span class="_3 blank"> </span>equilíbrio, <span class="_3 blank"> </span>cite <span class="_4 blank"> </span>as <span class="_3 blank"> </span>fases <span class="_3 blank"> </span>presentes, <span class="_3 blank"> </span>suas <span class="_3 blank"> </span>percent<span class="_0 blank"></span>agens, </span></div><div class="t m0 x5 h2 y33 ff1 fs0 fc0 sc0 ls1 ws1">com as respectivas c<span class="_0 blank"></span>omposições para as seguintes ligas:<span class="_0 blank"></span> </div><div class="t m0 x5 h2 y34 ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m0 x5 h2 y35 ff1 fs0 fc0 sc0 ls1 ws0">a-<span class="ff4 ls2 ws1"> </span><span class="ws1">40% em peso de Ni e 6<span class="_0 blank"></span>0% de Cu a 1000</span></div><div class="t m3 x7 h7 y36 ff1 fs3 fc0 sc0 ls1">0</div><div class="t m0 x8 h2 y37 ff1 fs0 fc0 sc0 ls1 ws1">C </div><div class="t m2 x5 h5 y38 ff1 fs2 fc2 sc0 ls1 ws1"> </div><div class="t m2 x9 h5 y39 ff1 fs2 fc2 sc0 ls1 ws1"> </div><div class="t m2 x5 h5 y3a ff1 fs2 fc2 sc0 ls1 ws1"> </div><div class="t m2 x5 h5 y3b ff1 fs2 fc2 sc0 ls1 ws1">Fase presente: \u03b1 (<span class="_3 blank"> </span>solução sólid<span class="_3 blank"> </span>a) </div><div class="t m2 x5 h5 y3c ff1 fs2 fc2 sc0 ls1 ws1">C\u03b1 \u2248 40% em pe<span class="_3 blank"> </span>so de Ni e 60% em p<span class="_3 blank"> </span>eso Cu </div><div class="t m0 xa h2 y3d ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m0 x5 h2 y3e ff1 fs0 fc0 sc0 ls1 ws0">b-<span class="ff4 ls3 ws1"> </span><span class="ws1">75% em peso de Sn e<span class="_0 blank"></span> 25% de Pb a 175</span></div><div class="t m3 xb h7 y3f ff1 fs3 fc0 sc0 ls1">0</div><div class="t m0 xc h2 y3e ff1 fs0 fc0 sc0 ls1 ws1">C </div><div class="t m0 xd h2 y40 ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m2 x5 h5 y41 ff1 fs2 fc2 sc0 ls1 ws1">Fases presentes: \u03b1 <span class="_3 blank"> </span>+ \u03b2 </div><div class="t m2 x5 h5 y42 ff1 fs2 fc2 sc0 ls1 ws1">Composição d<span class="_3 blank"> </span>as fases: <span class="_c blank"> </span>C\u03b1 \u2248 15% em pe<span class="_3 blank"> </span>so de Sn e 85% em p<span class="_3 blank"> </span>eso Pb </div><div class="t m2 xe h5 y43 ff1 fs2 fc2 sc0 ls1 ws1">C\u03b2 \u2248 98% em pe<span class="_3 blank"> </span>so de Sn e 2% em pe<span class="_3 blank"> </span>so de Pb </div><div class="t m2 x5 h5 y44 ff1 fs2 fc2 sc0 ls1 ws1"> </div><div class="t m2 x5 h5 y45 ff1 fs2 fc2 sc0 ls1 ws1">Quantida<span class="_3 blank"> </span>de relativa de cada f<span class="_3 blank"> </span>ase: </div><div class="t m2 xf h8 y46 ff5 fs2 fc2 sc0 ls1">\ue001</div><div class="t m2 xf h8 y47 ff5 fs2 fc2 sc0 ls1 ws2">\ue002\ue003 \ue004</div><div class="t m4 x10 h9 y48 ff5 fs4 fc2 sc0 ls1 ws3">\ue005\ue006 \ue007 \ue005\ue008</div><div class="t m4 x10 ha y49 ff5 fs4 fc2 sc0 ls1 ws3">\ue005\ue006 \ue007 \ue005\ue003<span class="_8 blank"> </span><span class="ls4 v1">\ue004</span><span class="v2">\ue009\ue00a \ue007 \ue00b\ue00c</span></div><div class="t m4 x11 hb y49 ff5 fs4 fc2 sc0 ls1 ws3">\ue009\ue00a \ue007 \ue008\ue00c<span class="_8 blank"> </span><span class="ws4 v1">\ue004 \ue001\ue00d\ue00e\ue00f\ue00a\ue001\ue010\ue011\ue001\ue00f\ue00a\ue012\ue001<span class="ff1 ws1"> </span></span></div><div class="t m4 xf hc y4a ff1 fs4 fc2 sc0 ls1 ws1"> </div><div class="t m2 x12 h8 y4b ff5 fs2 fc2 sc0 ls1 ws5">\ue002\ue006 \ue004</div><div class="t m4 x13 h9 y4c ff5 fs4 fc2 sc0 ls1 ws3">\ue005\ue008 \ue007 \ue005\ue003</div><div class="t m4 x13 ha y4d ff5 fs4 fc2 sc0 ls1 ws3">\ue005\ue006 \ue007 \ue005\ue003<span class="_8 blank"> </span><span class="ls4 v1">\ue004</span><span class="ws6 v2">\ue00b\ue00c \ue007<span class="_d blank"> </span>\ue008\ue00c</span></div><div class="t m4 x14 hb y4d ff5 fs4 fc2 sc0 ls1 ws6">\ue009\ue00a \ue007 \ue008<span class="_3 blank"> </span>\ue00c<span class="_d blank"> </span><span class="ws7 v1">\ue004 \ue001\ue00d<span class="_3 blank"> </span>\ue00e\ue00b\ue00f\ue001\ue010\ue011\ue001\ue00b\ue00f\ue012<span class="ff1 ws1"> </span></span></div><div class="t m4 x0 hc y4e ff1 fs4 fc2 sc0 ls1 ws1"> <span class="_e blank"> </span> </div><div class="c x15 y4f w3 hd"><div class="t m0 x16 h2 y50 ff1 fs0 fc2 sc0 ls1 ws0">C\u03b1</div></div><div class="c xe y4f w4 hd"><div class="t m0 x16 h2 y50 ff1 fs0 fc2 sc0 ls1 ws1"> </div></div><div class="c x15 y51 w3 hd"><div class="t m0 x16 h2 y50 ff1 fs0 fc2 sc0 ls1 ws0">C\u03b1</div></div><div class="c xe y51 w4 hd"><div class="t m0 x16 h2 y50 ff1 fs0 fc2 sc0 ls1 ws1"> </div></div><div class="c x17 y52 w5 hd"><div class="t m0 x16 h2 y50 ff1 fs0 fc2 sc0 ls1">C</div></div><div class="c x18 y52 w5 hd"><div class="t m0 x16 h2 y50 ff1 fs0 fc2 sc0 ls1">\u03b2</div></div><div class="c x19 y52 w4 hd"><div class="t m0 x16 h2 y50 ff1 fs0 fc2 sc0 ls1 ws1"> </div></div><div class="c x1a y53 w5 hd"><div class="t m0 x16 h2 y50 ff1 fs0 fc2 sc0 ls1">C</div></div><div class="c x1b y53 w6 hd"><div class="t m0 x16 h2 y50 ff1 fs0 fc2 sc0 ls1">1</div></div><div class="c x1c y53 w4 hd"><div class="t m0 x16 h2 y50 ff1 fs0 fc2 sc0 ls1 ws1"> </div></div></div><div class="pi" data-data='{"ctm":[1.000000,0.000000,0.000000,1.000000,0.000000,0.000000]}'></div></div> <div id="pf3" class="pf w0 h0" data-page-no="3"><div class="pc pc3 w0 h0"><img fetchpriority="low" loading="lazy" class="bi x1d y54 w7 he" alt="" src="https://files.passeidireto.com/0203c892-ddaf-475c-b882-1a23f8fb234a/bg3.png"><div class="t m0 x1 h2 y1 ff1 fs0 fc0 sc0 ls1 ws1">3 </div><div class="t m0 x0 h2 y2 ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m0 x5 h2 y32 ff1 fs0 fc0 sc0 ls1 ws0">c-<span class="ff4 ls5 ws1"> </span><span class="ws1">55% em peso de Ag <span class="_0 blank"></span>e 45% de Cu a 650</span></div><div class="t m3 xb h7 y55 ff1 fs3 fc0 sc0 ls1">0</div><div class="t m0 xc h2 y56 ff1 fs0 fc0 sc0 ls1 ws1">C </div><div class="t m0 x1e h2 y57 ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m2 x5 h5 y58 ff1 fs2 fc2 sc0 ls1 ws1"> </div><div class="t m2 x5 h5 y59 ff1 fs2 fc2 sc0 ls1 ws1">Fases presentes: \u03b1 <span class="_3 blank"> </span>+ \u03b2 </div><div class="t m2 x5 h5 y5a ff1 fs2 fc2 sc0 ls1 ws1">Composição d<span class="_3 blank"> </span>as fases: <span class="_f blank"> </span>C\u03b1 \u2248 5% em peso d<span class="_3 blank"> </span>e Ag e 95% <span class="_3 blank"> </span>em peso de Cu </div><div class="t m2 xe h5 y5b ff1 fs2 fc2 sc0 ls1 ws1">C\u03b2 \u2248 95% em pe<span class="_3 blank"> </span>so de Ag e 5% <span class="_3 blank"> </span>em peso de Cu </div><div class="t m2 x5 h5 y5c ff1 fs2 fc2 sc0 ls1 ws1"> </div><div class="t m2 x5 h5 y5d ff1 fs2 fc2 sc0 ls1 ws1">Quantida<span class="_3 blank"> </span>de relativa de cada f<span class="_3 blank"> </span>ase: </div><div class="t m2 x5 h8 y5e ff5 fs2 fc2 sc0 ls1 ws2">\ue002\ue003 \ue004</div><div class="t m4 x1d h9 y5f ff5 fs4 fc2 sc0 ls1 ws8">\ue005\ue006 \ue007 \ue005\ue008</div><div class="t m4 x1d ha y60 ff5 fs4 fc2 sc0 ls1 ws9">\ue005\ue006 \ue007 \ue005\ue003<span class="_8 blank"> </span><span class="ls6 v1">\ue004</span><span class="ws6 v2">\ue009\ue00c \ue007 \ue00c<span class="_3 blank"> </span>\ue00c</span></div><div class="t m4 x1f hf y60 ff5 fs4 fc2 sc0 ls1 wsa">\ue009\ue00c \ue007 \ue00c<span class="_10 blank"> </span><span class="wsb v1">\ue004 \ue001\ue00d\ue00e\ue013\ue013\ue001\ue010\ue011\ue001\ue013\ue013\ue012</span></div><div class="t m2 x14 h5 y5e ff1 fs2 fc2 sc0 ls1 ws1"> </div><div class="t m2 x5 h5 y61 ff1 fs2 fc2 sc0 ls1 ws1"> </div><div class="t m2 x5 h8 y62 ff5 fs2 fc2 sc0 ls1 ws5">\ue002\ue006 \ue004</div><div class="t m4 x1d h9 y63 ff5 fs4 fc2 sc0 ls1 ws9">\ue005\ue008 \ue007 \ue005\ue003</div><div class="t m4 x1d ha y64 ff5 fs4 fc2 sc0 ls1 ws9">\ue005\ue006 \ue007 \ue005\ue003<span class="_8 blank"> </span><span class="ls4 v1">\ue004</span><span class="v2">\ue00c\ue00c \ue007 \ue00c</span></div><div class="t m4 x20 hf y64 ff5 fs4 fc2 sc0 ls1 ws9">\ue009\ue00c \ue007 \ue00c<span class="_8 blank"> </span><span class="wsb v1">\ue004 \ue001\ue00d\ue00e\ue00c\ue00c<span class="_3 blank"> </span>\ue001\ue010\ue011\ue001\ue00c\ue00c\ue00e\ue00c\ue012</span></div><div class="t m2 x21 h5 y62 ff1 fs2 fc2 sc0 ls1 ws1"> </div><div class="t m0 xa h2 y65 ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m0 x4 h2 y66 ff1 fs0 fc0 sc0 ls1 ws0">8-<span class="ff4 ls0 ws1"> </span><span class="ws1">Uma liga <span class="_0 blank"></span>de <span class="_0 blank"></span>80% e<span class="_0 blank"></span>m peso <span class="_0 blank"></span>de <span class="_0 blank"></span>Cu e <span class="_0 blank"></span>20% <span class="_0 blank"></span>em pes<span class="_0 blank"></span>o de <span class="_0 blank"></span>Ag <span class="_0 blank"></span>é resfriada <span class="_0 blank"></span>lentamente <span class="_0 blank"></span>de <span class="_9 blank"></span>1<span class="_3 blank"> </span>100</span></div><div class="t m3 x22 h7 y67 ff1 fs3 fc0 sc0 ls1">0</div><div class="t m0 x1 h2 y66 ff1 fs0 fc0 sc0 ls1 ws1">C </div><div class="t m0 x5 h2 y68 ff1 fs0 fc0 sc0 ls1 ws1">a 900</div><div class="t m3 x23 h7 y69 ff1 fs3 fc0 sc0 ls1">0</div><div class="t m0 x1d h2 y68 ff1 fs0 fc0 sc0 ls1 ws1">C. </div><div class="t m0 x5 h2 y6a ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m0 x24 h2 y6b ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m0 xa h2 y6c ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m0 xa h2 y6d ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="c x25 y6e w3 h10"><div class="t m0 x16 h2 y6f ff1 fs0 fc2 sc0 ls1 ws0">C\u03b1</div></div><div class="c x12 y6e w4 h10"><div class="t m0 x16 h2 y6f ff1 fs0 fc2 sc0 ls1 ws1"> </div></div><div class="c x26 y70 w5 hd"><div class="t m0 x16 h2 y71 ff1 fs0 fc2 sc0 ls1">C</div></div><div class="c x27 y70 w5 hd"><div class="t m0 x16 h2 y71 ff1 fs0 fc2 sc0 ls1">\u03b2</div></div><div class="c x28 y70 w4 hd"><div class="t m0 x16 h2 y71 ff1 fs0 fc2 sc0 ls1 ws1"> </div></div><div class="c x29 y72 w3 hd"><div class="t m0 x16 h2 y73 ff1 fs0 fc2 sc0 ls1 ws0">C\u03b1</div></div><div class="c x2a y72 w4 hd"><div class="t m0 x16 h2 y73 ff1 fs0 fc2 sc0 ls1 ws1"> </div></div><div class="c x2b y74 w3 hd"><div class="t m0 x16 h2 y73 ff1 fs0 fc3 sc0 ls1 ws0">C\u03b1</div></div><div class="c x2c y74 w4 hd"><div class="t m0 x16 h2 y73 ff1 fs0 fc3 sc0 ls1 ws1"> </div></div><div class="c x2d y75 w5 h10"><div class="t m0 x16 h2 y76 ff1 fs0 fc3 sc0 ls1">C</div></div><div class="c x2e y75 w8 h10"><div class="t m0 x16 h2 y76 ff1 fs0 fc3 sc0 ls1">L</div></div><div class="c x2f y75 w4 h10"><div class="t m0 x16 h2 y76 ff1 fs0 fc3 sc0 ls1 ws1"> </div></div></div><div class="pi" data-data='{"ctm":[1.000000,0.000000,0.000000,1.000000,0.000000,0.000000]}'></div></div> <div id="pf4" class="pf w0 h0" data-page-no="4"><div class="pc pc4 w0 h0"><img fetchpriority="low" loading="lazy" class="bi x30 y77 w9 h11" alt="" src="https://files.passeidireto.com/0203c892-ddaf-475c-b882-1a23f8fb234a/bg4.png"><div class="t m0 x1 h2 y1 ff1 fs0 fc0 sc0 ls1 ws1">4 </div><div class="t m0 x0 h2 y2 ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m0 x5 h2 y32 ff1 fs0 fc0 sc0 ls1 ws0">a-<span class="ff4 ls2 ws1"> </span><span class="ws1">A que temperatura, apr<span class="_0 blank"></span>oximadamente, forma-se <span class="_0 blank"></span>o primeiro sólido? </span></div><div class="t m2 xa h5 y78 ff1 fs2 fc2 sc0 ls1 ws1">A uma temperatura <span class="_3 blank"> </span>menor ou igu<span class="_3 blank"> </span>al a 1000</div><div class="t m4 x31 h12 y79 ff1 fs5 fc2 sc0 ls1">o</div><div class="t m2 x32 h5 y78 ff1 fs2 fc2 sc0 ls1 ws1">C. </div><div class="t m0 xa h2 y7a ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m0 x5 h2 y7b ff1 fs0 fc0 sc0 ls1 ws0">b-<span class="ff4 ls3 ws1"> </span><span class="ws1">Qual é a composiçã<span class="_0 blank"></span>o da fase sólida na temperatura co<span class="_0 blank"></span>nsiderada no item (a)? </span></div><div class="t m2 xa h5 y7c ff1 fs2 fc2 sc0 ls1 ws1">C\u03b1 \u2248 6% em peso d<span class="_3 blank"> </span>e Ag </div><div class="t m0 xa h2 y7d ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m0 x5 h2 y7e ff1 fs0 fc0 sc0 ls1 ws0">c-<span class="ff4 ls5 ws1"> </span><span class="ws1">A que temperatura <span class="_0 blank"></span>o líquido solidifica? </span></div><div class="t m2 xa h5 y7f ff1 fs2 fc2 sc0 ls1 ws1">Na temperatura <span class="_3 blank"> </span>eutética de 779</div><div class="t m4 x33 h12 y80 ff1 fs5 fc2 sc0 ls1">o</div><div class="t m2 x34 h5 y7f ff1 fs2 fc2 sc0 ls1 ws1">C </div><div class="t m0 xa h2 y81 ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m0 x5 h2 y82 ff1 fs0 fc0 sc0 ls1 ws0">d-<span class="ff4 ls3 ws1"> </span><span class="ws1">Que fase estão present<span class="_0 blank"></span>es a 900</span></div><div class="t m3 x35 h7 y83 ff1 fs3 fc0 sc0 ls1">0</div><div class="t m0 x36 h2 y82 ff1 fs0 fc0 sc0 ls1 ws1">C? Qual a porcentag<span class="_0 blank"></span>em de cada fase? </div><div class="t m2 xa h5 y84 ff1 fs2 fc2 sc0 ls1 ws1">Fases presentes: \u03b1 <span class="_3 blank"> </span>+ L </div><div class="t m0 xa h2 y85 ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m0 x5 h2 y86 ff1 fs0 fc0 sc0 ls1 ws0">e-<span class="ff4 ls7 ws1"> </span><span class="ws1">Qual a composição de cada<span class="_0 blank"></span> fase presente a 900</span></div><div class="t m3 x1c h7 y87 ff1 fs3 fc0 sc0 ls1">0</div><div class="t m0 x37 h2 y86 ff1 fs0 fc0 sc0 ls1 ws1">C? </div><div class="t m2 xa h5 y88 ff1 fs2 fc2 sc0 ls1 ws1">C\u03b1 \u2248 8% em peso d<span class="_3 blank"> </span>e Ag </div><div class="t m2 xa h5 y89 ff1 fs2 fc2 sc0 ls1 ws1"> </div><div class="t m2 x38 h8 y8a ff5 fs2 fc2 sc0 ls1 ws2">\ue002\ue003 \ue004</div><div class="t m4 x39 h9 y8b ff5 fs4 fc2 sc0 ls1 ws9">\ue005\ue014 \ue007 \ue005\ue015</div><div class="t m4 x39 ha y8c ff5 fs4 fc2 sc0 ls1 wsc">\ue005\ue014 \ue007 \ue005\ue003<span class="_8 blank"> </span><span class="ls4 v1">\ue004</span><span class="ws9 v2">\ue013\ue00f \ue007 \ue00f<span class="_3 blank"> </span>\ue00d</span></div><div class="t m4 x3a hb y8c ff5 fs4 fc2 sc0 ls1 ws9">\ue013\ue00f \ue007 \ue00a<span class="_10 blank"> </span><span class="ws7 v1">\ue004 \ue001<span class="_3 blank"> </span>\ue00d\ue00e\ue016\ue013\ue00b\ue001\ue010\ue011\ue001\ue016\ue013\ue00e\ue00b\ue012\ue001\ue017\ue018\ue001\ue019<span class="ff1 ws1"> </span></span></div><div class="t m2 x5 h5 y8d ff1 fs2 fc2 sc0 ls1 ws1"> </div><div class="t m2 x38 h8 y8e ff5 fs2 fc2 sc0 ls1 wsd">\ue002\ue014 \ue004</div><div class="t m4 x39 h9 y8e ff5 fs4 fc2 sc0 ls1 ws9">\ue008 \ue007 \ue016\ue013\ue00e\ue00b<span class="_8 blank"> </span>\ue004<span class="_8 blank"> </span>\ue01a\ue00c\ue00e\ue01a\ue012\ue001\ue017\ue018\ue001\ue01b</div><div class="t m2 x3b h5 y8e ff1 fs2 fc2 sc0 ls1 ws1"> </div><div class="t m0 xa h2 y8f ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m0 x4 h2 y90 ff1 fs0 fc0 sc0 ls1 ws0">9-<span class="ff4 ls0 ws1"> </span><span class="ws1">A 200</span></div><div class="t m3 x3c h7 y91 ff1 fs3 fc0 sc0 ls1">0</div><div class="t m0 x3d h2 y90 ff1 fs0 fc0 sc0 ls1 ws1">C qual a solubilidade máxima<span class="_0 blank"></span> do: </div><div class="t m0 x5 h2 y92 ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m0 x4 h2 y93 ff1 fs0 fc0 sc0 ls1 ws0">a-<span class="ff4 ls2 ws1"> </span><span class="ws1">Pb em Sn: <span class="fc2">44% <span class="ff6 wse">Pb<span class="_0 blank"></span><span class="ff1 fc0 ws1"> </span></span></span></span></div><div class="t m0 x4 h2 y94 ff1 fs0 fc0 sc0 ls1 ws0">b-<span class="ff4 ls3 ws1"> </span><span class="ws1">Sn em Pb: <span class="fc2">18% Sn<span class="_0 blank"></span><span class="fc0"> </span></span></span></div><div class="t m0 x5 h2 y95 ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m0 x1e h2 y96 ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m0 x32 h2 y97 ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m0 x32 h2 y98 ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m0 x4 h2 y99 ff1 fs0 fc0 sc0 ls1 ws0">10-<span class="ff4 ls8 ws1"> </span><span class="ws1">Esquematize <span class="_a blank"> </span>o <span class="_5 blank"> </span>D<span class="_3 blank"> </span>iagrama<span class="_0 blank"></span> <span class="_5 blank"> </span>de <span class="_5 blank"> </span>Equilíbrio <span class="_5 blank"> </span>para <span class="_11 blank"> </span>um <span class="_a blank"> </span>sistema <span class="_5 blank"> </span>A-B, <span class="_5 blank"> </span>a <span class="_11 blank"> </span>partir <span class="_5 blank"> </span>dos <span class="_5 blank"> </span>seguintes </span></div><div class="t m0 x5 h2 y9a ff1 fs0 fc0 sc0 ls1 ws1">dados: </div><div class="t m0 x5 h2 y9b ff1 fs0 fc0 sc0 ls1 ws1">- Ponto de Fusão de A: <span class="_0 blank"></span>700</div><div class="t m3 x10 h7 y9c ff1 fs3 fc0 sc0 ls1">0</div><div class="t m0 x3e h2 y9b ff1 fs0 fc0 sc0 ls1 ws1">C </div><div class="t m0 x5 h2 y9d ff1 fs0 fc0 sc0 ls1 ws1">- Ponto de Fusão de B: 10<span class="_0 blank"></span>00</div><div class="t m3 x3f h7 y9e ff1 fs3 fc0 sc0 ls1">0</div><div class="t m0 x40 h2 y9d ff1 fs0 fc0 sc0 ls1 ws1">C </div><div class="t m0 x5 h2 y9f ff1 fs0 fc0 sc0 ls1 ws1">- Temperatura eutética<span class="_0 blank"></span>: 500</div><div class="t m3 x3f h7 ya0 ff1 fs3 fc0 sc0 ls1">0</div><div class="t m0 x40 h2 y9f ff1 fs0 fc0 sc0 ls1 ws1">C </div><div class="t m5 x5 h13 ya1 ff1 fs6 fc0 sc0 ls1 ws1">- Composição d<span class="_0 blank"></span>o líquido na temperat<span class="_0 blank"></span>ura eutética: 3<span class="_0 blank"></span>0% em peso de A e<span class="_0 blank"></span> 70% em peso <span class="_0 blank"></span>de B </div><div class="t m0 x5 h2 ya2 ff1 fs0 fc0 sc0 ls1 ws1">- Solubilidade a 500</div><div class="t m3 x2a h7 ya3 ff1 fs3 fc0 sc0 ls1">0</div><div class="t m0 xf h2 ya2 ff1 fs0 fc0 sc0 ls1 ws1">C: A em B é de 1<span class="_0 blank"></span>5% em peso e B em A é de 20%<span class="_0 blank"></span> </div><div class="t m0 x5 h2 ya4 ff1 fs0 fc0 sc0 ls1 ws1">- Solubilidade a 70</div><div class="t m3 x25 h7 ya5 ff1 fs3 fc0 sc0 ls1">0</div><div class="t m0 x41 h2 ya4 ff1 fs0 fc0 sc0 ls1 ws1">C: A em B é de 8<span class="_0 blank"></span>% em peso e B em A é de 15%<span class="_0 blank"></span> </div></div><div class="pi" data-data='{"ctm":[1.000000,0.000000,0.000000,1.000000,0.000000,0.000000]}'></div></div> <div id="pf5" class="pf w0 h0" data-page-no="5"><div class="pc pc5 w0 h0"><img fetchpriority="low" loading="lazy" class="bi x0 ya6 wa h14" alt="" src="https://files.passeidireto.com/0203c892-ddaf-475c-b882-1a23f8fb234a/bg5.png"><div class="t m0 x1 h2 y1 ff1 fs0 fc0 sc0 ls1 ws1">5 </div><div class="t m0 x0 h2 y2 ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m0 x42 h2 ya7 ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m0 x5 h2 ya8 ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m0 x4 h2 ya9 ff1 fs0 fc0 sc0 ls1 ws0">11-<span class="ff4 ls8 ws1"> </span><span class="ws1">Cite as principais formas<span class="_0 blank"></span> alotrópicas do ferro e suas<span class="_0 blank"></span> principais características. </span></div><div class="t m2 x4 h15 yaa ff1 fs2 fc2 sc0 ls1 ws1">Ferro <span class="_0 blank"></span><span class="ff7 wsf">\u03b1<span class="ff1 ws1"> <span class="_9 blank"></span>(f<span class="_3 blank"> </span>errita) <span class="_0 blank"></span>- <span class="_9 blank"></span>po<span class="_3 blank"> </span>ssui <span class="_9 blank"></span>a estrutura <span class="_0 blank"></span>cúbica <span class="_0 blank"></span>de <span class="_0 blank"></span>corpo <span class="_0 blank"></span>centrado (CCC) <span class="_9 blank"></span>e <span class="_0 blank"></span>é <span class="_9 blank"></span>o<span class="_3 blank"> </span> <span class="_9 blank"></span>estad<span class="_3 blank"> </span>o <span class="_9 blank"></span>em que <span class="_9 blank"></span>en<span class="_3 blank"> </span>contramos </span></span></div><div class="t m2 x0 h5 yab ff1 fs2 fc2 sc0 ls1 ws1">o ferro a temp<span class="_3 blank"> </span>eratura ambient<span class="_3 blank"> </span>e (até 910</div><div class="t m4 x43 h12 yac ff1 fs5 fc2 sc0 ls1">o</div><div class="t m2 x44 h15 yab ff1 fs2 fc2 sc0 ls1 ws1">C). O ferro<span class="_3 blank"> </span> <span class="ff7 wsf">\u03b1</span> pode ou n<span class="_3 blank"> </span>ão ser magnético (magn<span class="_3 blank"> </span>ético abaixo de </div><div class="t m2 x0 h5 yad ff1 fs2 fc2 sc0 ls1 ws1">768 </div><div class="t m4 x4 h12 yae ff1 fs5 fc2 sc0 ls1">o</div><div class="t m2 x45 h5 yad ff1 fs2 fc2 sc0 ls1 ws1">C, que é o p<span class="_3 blank"> </span>onto Curie). Possui uma b<span class="_3 blank"> </span>aixa dureza.<span class="_3 blank"> </span> </div><div class="t m2 x4 h15 yaf ff1 fs2 fc2 sc0 ls1 ws1">Ferro <span class="ff7 ls9">\u03b3</span> <span class="_d blank"> </span>(aust<span class="_3 blank"> </span>enita) -<span class="_3 blank"> </span> possui <span class="_8 blank"> </span>a estrutura<span class="_3 blank"> </span> cúbica <span class="_d blank"> </span>d<span class="_3 blank"> </span>e face <span class="_8 blank"> </span>centrada (CF<span class="_3 blank"> </span>C) e <span class="_d blank"> </span>é <span class="_d blank"> </span>encon<span class="_3 blank"> </span>trada <span class="_d blank"> </span>a <span class="_d blank"> </span>uma </div><div class="t m2 x0 h5 yb0 ff1 fs2 fc2 sc0 ls1 ws1">temperatura entre 910</div><div class="t m4 x46 h12 yb1 ff1 fs5 fc2 sc0 ls1">o</div><div class="t m2 x47 h5 yb0 ff1 fs2 fc2 sc0 ls1 ws1">C e 1390</div><div class="t m4 x3a h12 yb1 ff1 fs5 fc2 sc0 ls1">o</div><div class="t m2 x48 h5 yb0 ff1 fs2 fc2 sc0 ls1 ws1">C. Possui boa resistência <span class="_3 blank"> </span>mecânica e apreciável tenacida<span class="_3 blank"> </span>de além de <span class="_0 blank"></span>não </div><div class="t m2 x0 h5 yb2 ff1 fs2 fc2 sc0 ls1 ws1">ser magnética.<span class="_3 blank"> </span> </div><div class="t m2 x4 h15 yb3 ff1 fs2 fc2 sc0 ls1 ws1">Ferro <span class="ff7 lsa">\u03b4</span> - possui a estrutura cúbica de corpo centra<span class="_3 blank"> </span>do (CCC) e é encontrada a uma temperatura entre<span class="_3 blank"> </span> </div><div class="t m2 x0 h5 yb4 ff1 fs2 fc2 sc0 ls1 ws1">1390oC e 1534 </div><div class="t m4 x49 h12 yb5 ff1 fs5 fc2 sc0 ls1">o</div><div class="t m2 x4a h5 yb4 ff1 fs2 fc2 sc0 ls1 ws1">C. </div><div class="t m0 x5 h2 yb6 ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m0 x4 h2 yb7 ff1 fs0 fc0 sc0 ls1 ws0">12-<span class="ff4 ls8 ws1"> </span><span class="ws1">Aços são as principais ligas de Fe-C de ampla aplicação na engenh<span class="_0 blank"></span>aria. Como o<span class="_3 blank"> </span> carbon<span class="_0 blank"></span>o </span></div><div class="t m0 x5 h2 yb8 ff1 fs0 fc0 sc0 ls1 ws1">encontra-se na estrutura<span class="_0 blank"></span> cristalina do ferro? </div><div class="t m2 x4 h5 yb9 ff1 fs2 fc2 sc0 ls1 ws1">O <span class="_0 blank"></span>carbono<span class="_3 blank"> </span> <span class="_9 blank"></span>forma uma s<span class="_0 blank"></span>olução<span class="_3 blank"> </span> <span class="_0 blank"></span>sólida intersticial <span class="_0 blank"></span>com o <span class="_9 blank"></span>ferro,<span class="_3 blank"> </span> <span class="_0 blank"></span>isto <span class="_0 blank"></span>é, os <span class="_9 blank"></span>á<span class="_3 blank"> </span>tomos <span class="_0 blank"></span>de carbono s<span class="_0 blank"></span>e <span class="_0 blank"></span>colo<span class="_3 blank"> </span>cam </div><div class="t m2 x0 h5 yba ff1 fs2 fc2 sc0 ls1 ws1">nos interstícios d<span class="_3 blank"> </span>a estrutura cristalin<span class="_3 blank"> </span>a do ferro </div><div class="t m0 x5 h2 ybb ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m0 x4 h2 ybc ff1 fs0 fc0 sc0 ls1 ws0">13-<span class="ff4 ls8 ws1"> </span><span class="ws1">A solubilidade do carb<span class="_0 blank"></span>ono é maior na ferrita ou na au<span class="_0 blank"></span>stenita? Explique. </span></div><div class="t m2 x4 h5 ybd ff1 fs2 fc2 sc0 ls1 ws1">A máxima <span class="_3 blank"> </span>solubilidad<span class="_3 blank"> </span>e do <span class="_3 blank"> </span>carbono<span class="_3 blank"> </span> na <span class="_3 blank"> </span>ferrita é 0,02% <span class="_3 blank"> </span>a 7<span class="_3 blank"> </span>27</div><div class="t m4 x4b h12 ybe ff1 fs5 fc2 sc0 ls1">o</div><div class="t m2 x4c h5 ybd ff1 fs2 fc2 sc0 ls1 ws1">C e n<span class="_3 blank"> </span>a aust<span class="_3 blank"> </span>enita é <span class="_3 blank"> </span>2,14% à <span class="_3 blank"> </span>1147</div><div class="t m4 x4d h12 ybe ff1 fs5 fc2 sc0 ls1">0</div><div class="t m2 x1e h5 ybd ff1 fs2 fc2 sc0 ls1 ws1">C, logo, </div><div class="t m2 x0 h5 ybf ff1 fs2 fc2 sc0 ls1 ws1">é maior na au<span class="_3 blank"> </span>stenita. </div><div class="t m2 x4 h5 yc0 ff1 fs2 fc2 sc0 ls1 ws1">Os <span class="_1 blank"> </span>interstício<span class="_3 blank"> </span>s <span class="_6 blank"> </span>varia<span class="_3 blank"> </span>m <span class="_1 blank"> </span>de <span class="_1 blank"> </span>ta<span class="_3 blank"> </span>manho <span class="_1 blank"> </span>de <span class="_a blank"> </span>acordo <span class="_1 blank"> </span>com <span class="_a blank"> </span>a <span class="_1 blank"> </span>est<span class="_3 blank"> </span>rutura, <span class="_1 blank"> </span>isto <span class="_a blank"> </span>é, <span class="_1 blank"> </span>os <span class="_1 blank"> </span>espa<span class="_3 blank"> </span>ços <span class="_6 blank"> </span>in<span class="_3 blank"> </span>tersticiais <span class="_1 blank"> </span>da<span class="_3 blank"> </span> </div><div class="t m2 x0 h5 yc1 ff1 fs2 fc2 sc0 ls1 ws1">estrutura CCC (f<span class="_3 blank"> </span>errita) são meno<span class="_3 blank"> </span>res do que os da estrutu<span class="_3 blank"> </span>ra CFC (austenita). <span class="_3 blank"> </span> </div><div class="t m0 x5 h2 yc2 ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m0 x4 h2 yc3 ff1 fs0 fc0 sc0 ls1 ws0">14-<span class="ff4 ls8 ws1"> </span><span class="ws1">Qual a composição d<span class="_0 blank"></span>os aços quanto ao teor de carbon<span class="_0 blank"></span>o? </span></div><div class="t m2 x4 h5 yc4 ff1 fs2 fc2 sc0 ls1 ws1">Aço= 0,008 até 2,06<span class="_3 blank"> </span>% de Carbo<span class="_3 blank"> </span>no </div><div class="t m0 x5 h2 yc5 ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m0 x4 h2 yc6 ff1 fs0 fc0 sc0 ls1 ws0">15-<span class="ff4 ls8 ws1"> </span><span class="ws1">Qual a composição d<span class="_0 blank"></span>os ferros fundidos quanto ao te<span class="_0 blank"></span>or de carbono? </span></div><div class="t m2 x4 h5 yc7 ff1 fs2 fc2 sc0 ls1 ws1">A <span class="_0 blank"></span>maioria dos <span class="_9 blank"></span>ferros-fund<span class="_3 blank"> </span>idos <span class="_0 blank"></span>contém <span class="_0 blank"></span>no mínimo <span class="_9 blank"></span>2% de <span class="_9 blank"></span>carb<span class="_3 blank"> </span>ono, <span class="_0 blank"></span>mais <span class="_0 blank"></span>silício (<span class="_0 blank"></span>entre 1 <span class="_9 blank"></span>e 3%<span class="_0 blank"></span>) e <span class="_9 blank"></span>enxofre, </div><div class="t m2 x0 h5 yc8 ff1 fs2 fc2 sc0 ls1 ws1">podendo <span class="_3 blank"> </span>ou não haver outro<span class="_3 blank"> </span>s elementos de liga.<span class="_3 blank"> </span> </div><div class="t m0 x5 h2 yc9 ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m0 x5 h2 yca ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m0 x5 h2 ycb ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m6 x4e hc ycc ff1 fs4 fc4 sc0 ls1">0</div><div class="t m6 x4f hc ycd ff1 fs4 fc4 sc0 ls1 ws10">50</div><div class="t m6 x50 hc yce ff1 fs4 fc4 sc0 ls1 ws10">100</div><div class="t m6 x50 hc ycf ff1 fs4 fc4 sc0 ls1 ws10">150</div><div class="t m6 x50 hc yd0 ff1 fs4 fc4 sc0 ls1 ws10">200</div><div class="t m6 x50 hc yd1 ff1 fs4 fc4 sc0 ls1 ws10">250</div><div class="t m6 x50 hc y86 ff1 fs4 fc4 sc0 ls1 ws10">300</div><div class="t m6 x50 hc yd2 ff1 fs4 fc4 sc0 ls1 ws10">350</div><div class="t m6 x50 hc yd3 ff1 fs4 fc4 sc0 ls1 ws10">400</div><div class="t m6 x50 hc yd4 ff1 fs4 fc4 sc0 ls1 ws10">450</div><div class="t m6 x50 hc yd5 ff1 fs4 fc4 sc0 ls1 ws10">500</div><div class="t m6 x50 hc yd6 ff1 fs4 fc4 sc0 ls1 ws10">550</div><div class="t m6 x50 hc yd7 ff1 fs4 fc4 sc0 ls1 ws10">600</div><div class="t m6 x50 hc yd8 ff1 fs4 fc4 sc0 ls1 ws10">650</div><div class="t m6 x50 hc yd9 ff1 fs4 fc4 sc0 ls1 ws10">700</div><div class="t m6 x50 hc yda ff1 fs4 fc4 sc0 ls1 ws10">750</div><div class="t m6 x50 hc ydb ff1 fs4 fc4 sc0 ls1 ws10">800</div><div class="t m6 x50 hc ydc ff1 fs4 fc4 sc0 ls1 ws10">850</div><div class="t m6 x50 hc ydd ff1 fs4 fc4 sc0 ls1 ws10">900</div><div class="t m6 x50 hc yde ff1 fs4 fc4 sc0 ls1 ws10">950</div><div class="t m6 x51 hc ydf ff1 fs4 fc4 sc0 ls1 ws10">1000</div><div class="t m6 x51 hc ye0 ff1 fs4 fc4 sc0 ls1 ws10">1050</div><div class="t m6 x51 hc ye1 ff1 fs4 fc4 sc0 ls1 ws10">1100</div><div class="t m6 x51 hc ye2 ff1 fs4 fc4 sc0 ls1 ws10">1150</div><div class="t m6 x51 hc ye3 ff1 fs4 fc4 sc0 ls1 ws10">1200</div><div class="t m6 x52 hc ye4 ff1 fs4 fc4 sc0 ls1 ws11">0<span class="_12 blank"> </span>10 20 30 40 50 60 70 80<span class="_13 blank"> </span>90<span class="_14 blank"> </span>100</div><div class="t m7 x53 h16 ye5 ff1 fs2 fc4 sc0 ls1 ws1">Temperatura (<span class="fs7 lsb v3">o</span><span class="ws12">C)</span></div><div class="t m6 x54 h5 ye6 ff1 fs2 fc4 sc0 ls1 ws1">Porcentagem em Peso <span class="_3 blank"> </span>de A </div></div><div class="pi" data-data='{"ctm":[1.000000,0.000000,0.000000,1.000000,0.000000,0.000000]}'></div></div> <div id="pf6" class="pf w0 h0" data-page-no="6"><div class="pc pc6 w0 h0"><img fetchpriority="low" loading="lazy" class="bi x0 ye7 wb h17" alt="" src="https://files.passeidireto.com/0203c892-ddaf-475c-b882-1a23f8fb234a/bg6.png"><div class="t m0 x1 h2 y1 ff1 fs0 fc0 sc0 ls1 ws1">6 </div><div class="t m0 x0 h2 y2 ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m0 x4 h2 y32 ff1 fs0 fc0 sc0 ls1 ws0">16-<span class="ff4 ls8 ws1"> </span><span class="ws1">Especifique quantas fases<span class="_0 blank"></span> líquidas e sólidas estão<span class="_0 blank"></span> presentes no sistema ferro-c<span class="_0 blank"></span>arbono. </span></div><div class="t m2 x4 h5 y78 ff1 fs2 fc2 sc0 ls1 ws1">1 Fase líquida <span class="_3 blank"> </span> </div><div class="t m2 x4 h5 ye8 ff1 fs2 fc2 sc0 ls1 ws1">4 fases sólidas \u2013 (<span class="_3 blank"> </span>\u03b3, \u03b1, \u03b4, Fe</div><div class="t m4 xf h12 ye9 ff1 fs5 fc2 sc0 ls1">3</div><div class="t m2 x3a h5 ye8 ff1 fs2 fc2 sc0 ls1 ws1">C), ond<span class="_3 blank"> </span>e \u03b3 = austenita, \u03b1 = ferrita<span class="_3 blank"> </span> e \u03b4= ferro delta </div><div class="t m2 x4 h5 yea ff1 fs2 fc2 sc0 ls1 ws1"> </div><div class="t m0 x55 h2 yeb ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m0 x4 h2 yec ff1 fs0 fc0 sc0 ls1 ws0">17-<span class="ff4 ls8 ws1"> </span><span class="ws1">Com <span class="_3 blank"> </span>base <span class="_4 blank"> </span>no <span class="_3 blank"> </span>diagrama <span class="_3 blank"> </span>Fe-C, <span class="_4 blank"> </span>qual <span class="_3 blank"> </span>a <span class="_4 blank"> </span>solubilidade <span class="_3 blank"> </span>máxima <span class="_3 blank"> </span>do <span class="_4 blank"> </span>carbono <span class="_3 blank"> </span>nos <span class="_3 blank"> </span>aços <span class="_4 blank"> </span>e <span class="_3 blank"> </span>a <span class="_4 blank"> </span>que </span></div><div class="t m0 x5 h2 yed ff1 fs0 fc0 sc0 ls1 ws1">temperatura ocorre?<span class="_0 blank"></span> </div><div class="t m2 x4 h5 yee ff1 fs2 fc2 sc0 ls1 ws1">Aproximadament<span class="_3 blank"> </span>e 2,1 %C da fase au<span class="_3 blank"> </span>stenítica a 1148</div><div class="t m4 x32 h12 yef ff1 fs5 fc2 sc0 ls1">0</div><div class="t m2 x56 h5 yee ff1 fs2 fc2 sc0 ls1 ws1">C. </div><div class="t m2 x4 h5 yf0 ff1 fs2 fc2 sc0 ls1 ws1"> </div><div class="t m2 xd h5 yf1 ff1 fs2 fc2 sc0 ls1 ws1"> </div><div class="t m2 x57 h5 yf2 ff1 fs2 fc2 sc0 ls1 ws1"> </div><div class="t m2 x57 h5 yf3 ff1 fs2 fc2 sc0 ls1 ws1"> </div><div class="t m0 x4 h2 ybd ff1 fs0 fc0 sc0 ls1 ws0">18-<span class="ff4 ls8 ws1"> </span><span class="ws1">Com <span class="_4 blank"> </span>base <span class="_4 blank"> </span>no <span class="_6 blank"> </span>diagra<span class="_0 blank"></span>ma <span class="_6 blank"> </span>F<span class="_0 blank"></span>e-C, <span class="_4 blank"> </span>especifique <span class="_4 blank"> </span>as <span class="_4 blank"> </span>t<span class="_3 blank"> </span>emperat<span class="_0 blank"></span>uras <span class="_4 blank"> </span>e<span class="_3 blank"> </span> <span class="_4 blank"> </span>composições <span class="_4 blank"> </span>das <span class="_4 blank"> </span>reações </span></div><div class="t m0 x5 h2 yf4 ff1 fs0 fc0 sc0 ls1 ws1">eutética e eutetóide. </div><div class="t m0 x5 h2 yf5 ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m2 x58 h5 yf6 ff1 fs2 fc2 sc0 ls1 ws1">Propriedades <span class="_15 blank"> </span>Reações </div><div class="t m2 x39 h5 yf7 ff1 fs2 fc2 sc0 ls1 ws1"> <span class="_16 blank"> </span>Eutética <span class="_17 blank"> </span>Eutetóide </div><div class="t m2 x58 h5 yf8 ff1 fs2 fc2 sc0 ls1 ws1">Temperatura<span class="_3 blank"> </span> <span class="_18 blank"> </span>1148</div><div class="t m4 x59 h12 y98 ff1 fs5 fc2 sc0 ls1">o</div><div class="t m2 x5a h5 yf8 ff1 fs2 fc2 sc0 ls1 ws1">C <span class="_19 blank"> </span>725</div><div class="t m4 x5b h12 y98 ff1 fs5 fc2 sc0 ls1">o</div><div class="t m2 x5c h5 yf8 ff1 fs2 fc2 sc0 ls1 ws1">C </div><div class="t m2 x4 h5 yf9 ff1 fs2 fc2 sc0 ls1 ws1">Composição<span class="_3 blank"> </span> </div><div class="t m4 x47 hc yfa ff1 fs4 fc2 sc0 ls1 ws1">Teor de Carbono <span class="_1a blank"> </span>4,3% <span class="_1b blank"> </span>0,8% </div><div class="t m4 xf hc yfb ff1 fs4 fc2 sc0 ls1 ws1"> <span class="_1c blank"> </span>\u03b3 (2,11% C) <span class="_1d blank"> </span>\u03b1 (0,022% C) </div><div class="t m4 x25 hc yfc ff1 fs4 fc2 sc0 ls1 ws10">Fe</div><div class="c xf yfd wc h18"><div class="t m8 x16 h19 yfe ff1 fs8 fc2 sc0 ls1">3</div></div><div class="t m4 x3a hc yfc ff1 fs4 fc2 sc0 ls1 ws1">C <span class="_1c blank"> </span>6,7% C <span class="_1e blank"> </span>6,7% C </div><div class="t m2 x57 h5 yff ff1 fs2 fc2 sc0 ls1 ws1"> </div><div class="t m2 x4 h5 y100 ff1 fs2 fc2 sc0 ls1 ws1">Reação Eutética: 4,<span class="_3 blank"> </span>3%</div><div class="t m4 x20 hc y100 ff1 fs4 fc2 sc0 ls1 ws1"> L (4,3% C) <=> \u03b3 (2,11% C) + Fe</div><div class="t m8 x57 h19 y101 ff1 fs8 fc2 sc0 ls1">3</div><div class="t m4 x5d hc y100 ff1 fs4 fc2 sc0 ls1 ws1">C (6,7% C) </div><div class="t m2 x4 h5 y102 ff1 fs2 fc2 sc0 ls1 ws1">Reação Eutetóid<span class="_3 blank"> </span>e: </div><div class="t m4 x46 hc y102 ff1 fs4 fc2 sc0 ls1 ws1">\u03b3 (0,77% C) <=> \u03b1 (0,022% C)<span class="_3 blank"> </span> + Fe</div><div class="t m8 x5e h19 y103 ff1 fs8 fc2 sc0 ls1">3</div><div class="t m4 x2f hc y102 ff1 fs4 fc2 sc0 ls1 ws1">C (6,7% C) </div><div class="t m2 x4 h5 y104 ff1 fs2 fc2 sc0 ls1 ws1"> </div><div class="t m2 x4 h5 y105 ff1 fs2 fc2 sc0 ls1 ws1"> </div></div><div class="pi" data-data='{"ctm":[1.000000,0.000000,0.000000,1.000000,0.000000,0.000000]}'></div></div> <div id="pf7" class="pf w0 h0" data-page-no="7"><div class="pc pc7 w0 h0"><img fetchpriority="low" loading="lazy" class="bi x0 y106 wb h1a" alt="" src="https://files.passeidireto.com/0203c892-ddaf-475c-b882-1a23f8fb234a/bg7.png"><div class="t m0 x1 h2 y1 ff1 fs0 fc0 sc0 ls1 ws1">7 </div><div class="t m0 x0 h2 y2 ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m0 x4 h2 y32 ff1 fs0 fc0 sc0 ls1 ws0">19-<span class="ff4 ls8 ws1"> </span><span class="ws1">Como <span class="_1f blank"> </span>são <span class="_1f blank"> </span>as <span class="_1f blank"> </span>microestrut<span class="_0 blank"></span>uras <span class="_1f blank"> </span>características <span class="_1f blank"> </span>dos <span class="_1f blank"> </span>aços <span class="_1f blank"> </span>eut<span class="_0 blank"></span>etóides, <span class="_1f blank"> </span>hipo <span class="_1f blank"> </span>e <span class="_1f blank"> </span>hiper<span class="_0 blank"></span>-</span></div><div class="t m0 x5 h2 y33 ff1 fs0 fc0 sc0 ls1 ws1">eutetóide? </div><div class="t m0 x5 h2 y34 ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m2 x5f h5 y107 ff1 fs2 fc2 sc0 ls1 ws1"> <span class="_20 blank"> </span>Hipoeutetóide<span class="_3 blank"> </span> <span class="_21 blank"> </span>Eutetóide <span class="_22 blank"> </span>Hipereutetóide<span class="_3 blank"> </span> </div><div class="t m2 x5f h5 y108 ff1 fs2 fc2 sc0 ls1 ws1">Teor de Carbono<span class="_3 blank"> </span> <span class="_23 blank"> </span>0,002 a 0,8% <span class="_24 blank"> </span>0,8% <span class="_25 blank"> </span>0,8 a 2,06% </div><div class="t m2 x5f h5 y109 ff1 fs2 fc2 sc0 ls1 ws1">Estrutura <span class="_26 blank"> </span>Ferrita + Perlita<span class="_3 blank"> </span> <span class="_27 blank"> </span>Perlita <span class="_28 blank"> </span>Cementita + Perl<span class="_3 blank"> </span>ita </div><div class="t m2 x5f h5 y10a ff1 fs2 fc2 sc0 ls1 ws1">Concentrações<span class="_3 blank"> </span> </div><div class="t m2 x60 h5 y10b ff1 fs2 fc2 sc0 ls1 ws1">As quantid<span class="_3 blank"> </span>ades de </div><div class="t m2 x47 h5 y10c ff1 fs2 fc2 sc0 ls1 ws1">ferrita e perlita <span class="_3 blank"> </span>variam </div><div class="t m2 x20 h5 y10d ff1 fs2 fc2 sc0 ls1 ws1">conforme a % d<span class="_3 blank"> </span>e </div><div class="t m2 x61 h5 y10e ff1 fs2 fc2 sc0 ls1 ws1">carbono e p<span class="_3 blank"> </span>odem ser </div><div class="t m2 x62 h5 y10f ff1 fs2 fc2 sc0 ls1 ws1">determinadas pe<span class="_3 blank"> </span>la regra </div><div class="t m2 x29 h5 y110 ff1 fs2 fc2 sc0 ls1 ws1">das alavancas.<span class="_3 blank"> </span> </div><div class="t m2 x2e h5 y10b ff1 fs2 fc2 sc0 ls1 ws1">Consiste de lam<span class="_3 blank"> </span>elas </div><div class="t m2 x63 h5 y10c ff1 fs2 fc2 sc0 ls1 ws1">alternadas de fas<span class="_3 blank"> </span>e </div><div class="t m2 x57 h5 y10d ff1 fs2 fc2 sc0 ls1 ws1">\u03b1(ferrita) e Fe3C </div><div class="t m2 x64 h5 y10e ff1 fs2 fc2 sc0 ls1 ws1">(cementita) chamad<span class="_3 blank"> </span>a de </div><div class="t m2 x59 h5 y10f ff1 fs2 fc2 sc0 ls1 ws1">perlita. </div><div class="t m2 x65 h5 y10b ff1 fs2 fc2 sc0 ls1 ws1">As quantid<span class="_3 blank"> </span>ades de </div><div class="t m2 x66 h5 y10c ff1 fs2 fc2 sc0 ls1 ws1">cementita e perlita </div><div class="t m2 x67 h5 y10d ff1 fs2 fc2 sc0 ls1 ws1">variam conform<span class="_3 blank"> </span>e a % de </div><div class="t m2 x68 h5 y10e ff1 fs2 fc2 sc0 ls1 ws1">carbono e p<span class="_3 blank"> </span>odem ser </div><div class="t m2 x67 h5 y10f ff1 fs2 fc2 sc0 ls1 ws1">determinadas pe<span class="_3 blank"> </span>la regra </div><div class="t m2 xd h5 y110 ff1 fs2 fc2 sc0 ls1 ws1">das alavancas.<span class="_3 blank"> </span> </div><div class="t m2 x5f h5 y111 ff1 fs2 fc2 sc0 ls1 ws1">Partes claras<span class="_3 blank"> </span> <span class="_29 blank"> </span>pró eutetóide ferrita<span class="_3 blank"> </span> <span class="_2a blank"> </span> <span class="_2b blank"> </span>pró eutetóide ce<span class="_3 blank"> </span>mentita </div><div class="t m2 x4 h5 y112 ff1 fs2 fc2 sc0 ls1 ws1"> </div><div class="t m0 x4 h2 y113 ff1 fs0 fc0 sc0 ls1 ws0">20-<span class="ff4 ls8 ws1"> </span><span class="ws1">Por que a martensita nã<span class="_0 blank"></span>o aparece no diagrama de equ<span class="_0 blank"></span>ilíbrio Fe-C? </span></div><div class="t m2 x4 h5 y114 ff1 fs2 fc2 sc0 ls1 ws1">A martensita n<span class="_3 blank"> </span>ão aparece no <span class="_3 blank"> </span>diagrama de equilíb<span class="_3 blank"> </span>rio Fe-C p<span class="_3 blank"> </span>orque possui <span class="_3 blank"> </span>estrutura tetrag<span class="_3 blank"> </span>onal cúbica. </div><div class="t m2 x0 h5 y115 ff1 fs2 fc2 sc0 ls1 ws1">Assim, é uma fas<span class="_3 blank"> </span>e metaestável, p<span class="_3 blank"> </span>or isso não aparece no<span class="_3 blank"> </span> diagrama. </div><div class="t m0 x5 h2 y116 ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m0 x4 h2 y117 ff1 fs0 fc0 sc0 ls1 ws0">21-<span class="ff4 ls8 ws1"> </span><span class="ws1">A martensita é mais fa<span class="_0 blank"></span>cilmente obtida num aço hipo <span class="_0 blank"></span>ou hiper-eutetóide? </span></div><div class="t m2 x4 h5 y118 ff1 fs2 fc2 sc0 ls1 ws1">Quanto o maior <span class="_0 blank"></span>teor de <span class="_0 blank"></span>carbo<span class="_3 blank"> </span>no em<span class="_0 blank"></span> um <span class="_0 blank"></span>aço, maior a <span class="_0 blank"></span>prob<span class="_3 blank"> </span>abilidade de <span class="_0 blank"></span>formar a martensita, portanto </div><div class="t m2 x0 h5 y119 ff1 fs2 fc2 sc0 ls1 ws1">aço hipereutetóid<span class="_3 blank"> </span>e forma mais facil<span class="_3 blank"> </span>mente as martensita.<span class="_3 blank"> </span> </div><div class="t m0 x4 h2 y11a ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m0 x4 h2 y11b ff1 fs0 fc0 sc0 ls1 ws0">22-<span class="ff4 ls8 ws1"> </span><span class="ws1">Quais são as principais fa<span class="_0 blank"></span>ses que podem estar presentes nos<span class="_0 blank"></span> aços a temperatura </span></div><div class="t m0 x5 h2 yaa ff1 fs0 fc0 sc0 ls1 ws1">ambiente <span class="_4 blank"> </span>se <span class="_4 blank"> </span>resfriados <span class="_4 blank"> </span>lentamente? <span class="_3 blank"> </span>Cite<span class="_3 blank"> </span> <span class="_4 blank"> </span>as <span class="_4 blank"> </span>principai<span class="_0 blank"></span>s <span class="_4 blank"> </span>propriedades <span class="_4 blank"> </span>mecânicas <span class="_4 blank"> </span>dessas </div><div class="t m0 x5 h2 y11c ff1 fs0 fc0 sc0 ls1 ws1">fases. </div><div class="t m2 x4 h5 y11d ff1 fs2 fc2 sc0 ls1 ws1">Ferrita - ductil, b<span class="_3 blank"> </span>aixa resistênc<span class="_3 blank"> </span>ia mecânica, macia.<span class="_3 blank"> </span> </div><div class="t m2 x4 h5 y11e ff1 fs2 fc2 sc0 ls1 ws1">Austenita - média<span class="_3 blank"> </span> resistência mecân<span class="_3 blank"> </span>ica, média du<span class="_3 blank"> </span>reza, média du<span class="_3 blank"> </span>ctilidade. </div><div class="t m2 x4 h5 y11f ff1 fs2 fc2 sc0 ls1 ws1">Cementita - dur<span class="_3 blank"> </span>a e resistente. </div><div class="t m2 x4 h5 y120 ff1 fs2 fc2 sc0 ls1 ws1">Perlita - alta re<span class="_3 blank"> </span>sistência mecân<span class="_3 blank"> </span>ica, dureza, ba<span class="_3 blank"> </span>ixa ductilidad<span class="_3 blank"> </span>e<span class="_0 blank"></span>. </div><div class="t m2 x4 h5 y121 ff1 fs2 fc2 sc0 ls1 ws1"> </div><div class="t m0 x4 h2 y122 ff1 fs0 fc0 sc0 ls1 ws0">23-<span class="ff4 ls8 ws1"> </span><span class="ws1">Diferencie as <span class="_3 blank"> </span>propriedades da <span class="_3 blank"> </span>martensita alfa <span class="_3 blank"> </span>e <span class="_3 blank"> </span>da martensita <span class="_3 blank"> </span>revenida, <span class="_3 blank"> </span>dizendo<span class="_0 blank"></span> <span class="_3 blank"> </span>como </span></div><div class="t m0 x5 h2 y123 ff1 fs0 fc0 sc0 ls1 ws1">podem ser obtidas. </div><div class="t m2 x4 h5 y124 ff1 fs2 fc2 sc0 ls1 ws1">Martensita: </div><div class="t m2 x4 h5 y125 ff1 fs2 fc2 sc0 ls1 ws1"> </div><div class="t m2 x5 h5 y126 ff1 fs2 fc2 sc0 ls1 ws1">- É uma solução<span class="_3 blank"> </span> sólida supersa<span class="_3 blank"> </span>turada de carb<span class="_3 blank"> </span>ono (não se forma po<span class="_3 blank"> </span>r difusão); </div><div class="t m2 x5 h5 y127 ff1 fs2 fc2 sc0 ls1 ws1">- microestrutura e<span class="_3 blank"> </span>m forma de<span class="_3 blank"> </span> agulhas; </div><div class="t m2 x5 h5 y128 ff1 fs2 fc2 sc0 ls1 ws1">- é dura e frágil (du<span class="_3 blank"> </span>reza: 63-67 <span class="_3 blank"> </span>Rc); </div><div class="t m2 x5 h5 y129 ff1 fs2 fc2 sc0 ls1 ws1">- tem estrutura t<span class="_3 blank"> </span>etragonal cúb<span class="_3 blank"> </span>ica (é uma fase metae<span class="_3 blank"> </span>stável, por <span class="_3 blank"> </span>isso não aparece no d<span class="_3 blank"> </span>iagrama) </div><div class="t m2 x4 h5 y12a ff1 fs2 fc2 sc0 ls1 ws1">Na <span class="_d blank"> </span>martensita <span class="_8 blank"> </span>todo <span class="_d blank"> </span>o <span class="_8 blank"> </span>carbono <span class="_d blank"> </span>permanece <span class="_8 blank"> </span>intersticial, <span class="_d blank"> </span>f<span class="_3 blank"> </span>ormando <span class="_d blank"> </span>u<span class="_3 blank"> </span>ma soluçã<span class="_3 blank"> </span>o sól<span class="_3 blank"> </span>ida <span class="_d blank"> </span>de <span class="_8 blank"> </span>Ferro </div><div class="t m2 x0 h5 y12b ff1 fs2 fc2 sc0 ls1 ws1">supersaturada <span class="_5 blank"> </span>com <span class="_a blank"> </span>Carbono, <span class="_5 blank"> </span>que <span class="_a blank"> </span>é <span class="_a blank"> </span>capa<span class="_3 blank"> </span>z <span class="_1 blank"> </span>t<span class="_3 blank"> </span>ransformar-se <span class="_a blank"> </span>em <span class="_a blank"> </span>outras <span class="_a blank"> </span>estrutu<span class="_3 blank"> </span>ras, <span class="_a blank"> </span>por <span class="_a blank"> </span>difusão,<span class="_3 blank"> </span> <span class="_1 blank"> </span>q<span class="_3 blank"> </span>uando </div><div class="t m2 x0 h5 y12c ff1 fs2 fc2 sc0 ls1 ws1">aquecida. </div><div class="t m2 x4 h5 y12d ff1 fs2 fc2 sc0 ls1 ws1"> </div><div class="t m2 x4 h5 y12e ff1 fs2 fc2 sc0 ls1 ws1">Martensita Rev<span class="_3 blank"> </span>enida: </div><div class="t m2 x4 h5 y12f ff1 fs2 fc2 sc0 ls1 ws1"> </div><div class="t m2 x5 h5 y130 ff1 fs2 fc2 sc0 ls1 ws1">É obtid<span class="_3 blank"> </span>a pelo reaquecimento <span class="_3 blank"> </span>da martensita (<span class="_3 blank"> </span>fase alfa + cem<span class="_3 blank"> </span>entita). Neste proce<span class="_3 blank"> </span>sso a dureza <span class="_3 blank"> </span>cai, </div><div class="t m2 x0 h5 y131 ff1 fs2 fc2 sc0 ls1 ws1">os carbonetos prec<span class="_3 blank"> </span>ipitam e formam<span class="_3 blank"> </span>-se agulhas escuras.<span class="_3 blank"> </span> </div><div class="t m0 x5 h2 y132 ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m0 x4 h2 y133 ff1 fs0 fc0 sc0 ls1 ws0">24-<span class="ff4 ls8 ws1"> </span><span class="ws1">Use <span class="_0 blank"></span>a <span class="_9 blank"></span>re<span class="_3 blank"> </span>gra<span class="_0 blank"></span> d<span class="_0 blank"></span>as ala<span class="_0 blank"></span>vancas <span class="_0 blank"></span>para <span class="_9 blank"></span>determinar <span class="_0 blank"></span>a <span class="_9 blank"></span>fração d<span class="_0 blank"></span>a <span class="_9 blank"></span>ferrita \u03b1<span class="_0 blank"></span> e<span class="_0 blank"></span> <span class="_0 blank"></span>da <span class="_0 blank"></span>cementita <span class="_9 blank"></span>na <span class="_0 blank"></span>perlita </span></div><div class="t m0 x5 h2 y134 ff1 fs0 fc0 sc0 ls1 ws1">(na composição eutet<span class="_0 blank"></span>óide e temperatura ambiente).<span class="_0 blank"></span> </div><div class="t m0 x5 h2 y135 ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m2 x5 h8 y136 ff5 fs2 fc2 sc0 ls1 ws13">\ue01c\ue003</div><div class="t m4 x69 h1b y136 ff5 fs4 fc2 sc0 lsc">\ue004<span class="fs5 ls1 ws1 v4">\ue005\ue01d\ue01e\ue01a\ue005\ue007\ue005\ue01f\ue01e </span></div><div class="t m4 x1d h1c y137 ff5 fs5 fc2 sc0 ls1 ws14">\ue005\ue01d\ue01e\ue01a\ue005\ue007\ue005\ue003</div><div class="t m2 x47 h5 y136 ff1 fs2 fc2 sc0 ls1">=</div><div class="t m4 x6a h1c y138 ff5 fs5 fc2 sc0 ls1 ws15">!\ue00e"#$\ue00e""</div><div class="t m4 x6b h1d y139 ff5 fs5 fc2 sc0 ls1 ws15">!\ue00e""#$\ue00e$%%<span class="_d blank"> </span><span class="fs4 lsd v5">\ue004</span><span class="ws16 v6">&\ue00e' (</span></div><div class="t m4 x6c h1c y139 ff5 fs5 fc2 sc0 ls1 ws17">!\ue00e!")</div><div class="t m2 x40 h5 y136 ff1 fs2 fc2 sc0 ls1 ws1"> = 0,887 ou 88,7% de f<span class="_3 blank"> </span>errita </div><div class="t m2 x5 h5 y13a ff1 fs2 fc2 sc0 ls1 ws1"> </div><div class="t m2 x5 h8 y13b ff5 fs2 fc2 sc0 ls1 ws18">\ue01c\ue01d\ue01e\ue01a\ue005 \ue004</div><div class="t m4 x6d h1c y13c ff5 fs5 fc2 sc0 ls1 ws1">\ue005\ue01f\ue01e \ue007\ue005\ue003</div><div class="t m4 x6e h1c y13d ff5 fs5 fc2 sc0 ls1 ws14">\ue005\ue01d\ue01e\ue01a\ue005\ue007\ue005\ue003</div><div class="t m2 x20 h5 y13e ff1 fs2 fc2 sc0 ls1">=</div><div class="t m4 x6f h1c y13f ff5 fs5 fc2 sc0 ls1 ws19">$\ue00e""#$\ue00e$%%</div><div class="t m4 x6f h1d y140 ff5 fs5 fc2 sc0 ls1 ws19">!\ue00e""#$\ue00e$%%<span class="_d blank"> </span><span class="fs4 lse v5">\ue004</span><span class="ws1a v6">$\ue00e"*)</span></div><div class="t m4 x13 h1c y140 ff5 fs5 fc2 sc0 ls1 ws1a">!\ue00e!")</div><div class="t m2 x70 h5 y13e ff1 fs2 fc2 sc0 ls1 ws1"> = 0,112 ou 11,2% de c<span class="_3 blank"> </span>ementita </div></div><div class="pi" data-data='{"ctm":[1.000000,0.000000,0.000000,1.000000,0.000000,0.000000]}'></div></div> <div id="pf8" class="pf w0 h0" data-page-no="8"><div class="pc pc8 w0 h0"><img fetchpriority="low" loading="lazy" class="bi x41 y141 wd h1e" alt="" src="https://files.passeidireto.com/0203c892-ddaf-475c-b882-1a23f8fb234a/bg8.png"><div class="t m0 x1 h2 y1 ff1 fs0 fc0 sc0 ls1 ws1">8 </div><div class="t m0 x0 h2 y2 ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m0 x4 h2 y32 ff1 fs0 fc0 sc0 ls1 ws0">25-<span class="ff4 ls8 ws1"> </span><span class="ws1">Quais são os principais fat<span class="_0 blank"></span>ores que modificam a posiçã<span class="_0 blank"></span>o das curvas TTT? </span></div><div class="t m2 x4 h5 y78 ff1 fs2 fc2 sc0 ls1 ws1">São: teor de carbo<span class="_3 blank"> </span>no, tamanho<span class="_3 blank"> </span> do grão da <span class="_3 blank"> </span>austenita e composição qu<span class="_3 blank"> </span>ímica (elementos d<span class="_3 blank"> </span>e liga).</div><div class="t m0 x71 h2 y78 ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m0 x5 h2 y7a ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m0 x4 h2 y7b ff1 fs0 fc0 sc0 ls1 ws0">26-<span class="ff4 ls8 ws1"> </span><span class="ws1">Alto teor de carbon<span class="_0 blank"></span>o favorece ou dificulta a formação<span class="_0 blank"></span> da martensita? E da perlita? </span></div><div class="t m2 x5 h5 y7c ff1 fs2 fc2 sc0 ls1 ws1">Quanto <span class="_2c blank"> </span>menor <span class="_7 blank"> </span>o <span class="_2c blank"> </span>teor <span class="_7 blank"> </span>de <span class="_7 blank"> </span>c<span class="_3 blank"> </span>arbono <span class="_2c blank"> </span>(abaixo <span class="_7 blank"> </span>do<span class="_3 blank"> </span> <span class="_7 blank"> </span>eutetóide) <span class="_7 blank"> </span>mai<span class="_3 blank"> </span>s <span class="_7 blank"> </span>difícil <span class="_7 blank"> </span>d<span class="_3 blank"> </span>e <span class="_7 blank"> </span>obter <span class="_2c blank"> </span>estrutu<span class="_3 blank"> </span>ra </div><div class="t m2 x0 h5 y142 ff1 fs2 fc2 sc0 ls1 ws1">martensítica, lo<span class="_3 blank"> </span>go, alto teor de carb<span class="_3 blank"> </span>ono favorece a for<span class="_3 blank"> </span>mação da<span class="_3 blank"> </span> martensita. </div><div class="t m2 x5 h5 y143 ff1 fs2 fc2 sc0 ls1 ws1">Em <span class="_4 blank"> </span>relação <span class="_4 blank"> </span>a <span class="_3 blank"> </span>p<span class="_3 blank"> </span>erlita, <span class="_4 blank"> </span>sua <span class="_3 blank"> </span>p<span class="_3 blank"> </span>ercentagem <span class="_4 blank"> </span>será <span class="_3 blank"> </span>tan<span class="_3 blank"> </span>to <span class="_3 blank"> </span>meno<span class="_3 blank"> </span>r <span class="_3 blank"> </span>qu<span class="_3 blank"> </span>anto <span class="_4 blank"> </span>menor <span class="_4 blank"> </span>for <span class="_3 blank"> </span>o<span class="_3 blank"> </span> <span class="_3 blank"> </span>teor <span class="_4 blank"> </span>de <span class="_4 blank"> </span>carbon<span class="_3 blank"> </span>o, </div><div class="t m2 x0 h5 y144 ff1 fs2 fc2 sc0 ls1 ws1">anuland<span class="_3 blank"> </span>o-se <span class="_3 blank"> </span>quanto <span class="_4 blank"> </span>este <span class="_3 blank"> </span>cair <span class="_3 blank"> </span>aba<span class="_3 blank"> </span>ixo <span class="_3 blank"> </span>de <span class="_4 blank"> </span>0.020%. <span class="_3 blank"> </span>Assim <span class="_3 blank"> </span>sen<span class="_3 blank"> </span>do, <span class="_3 blank"> </span>alto <span class="_4 blank"> </span>teor <span class="_3 blank"> </span>de <span class="_4 blank"> </span>carbono <span class="_3 blank"> </span>dificu<span class="_3 blank"> </span>lta <span class="_3 blank"> </span>a <span class="_4 blank"> </span>formação </div><div class="t m2 x0 h5 y145 ff1 fs2 fc2 sc0 ls1 ws1">de perlita.<span class="_3 blank"> </span> </div><div class="t m0 x5 h2 ya ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m0 x4 h2 y146 ff1 fs0 fc0 sc0 ls1 ws0">27-<span class="ff4 ls8 ws1"> </span><span class="ws1">Tamanho de grão <span class="_3 blank"> </span>grande favorece ou dificulta <span class="_3 blank"> </span>a formação da <span class="_3 blank"> </span>martensit<span class="_0 blank"></span>a? <span class="_3 blank"> </span>E da perlita? </span></div><div class="t m0 x5 h2 y147 ff1 fs0 fc0 sc0 ls1 ws1">Justifique. </div><div class="t m2 x5 h5 y148 ff1 fs2 fc2 sc0 ls1 ws1">Quanto <span class="_3 blank"> </span>maior os <span class="_3 blank"> </span>tamanh<span class="_3 blank"> </span>os de <span class="_3 blank"> </span>grão <span class="_3 blank"> </span>mais par<span class="_3 blank"> </span>a a <span class="_3 blank"> </span>direita de<span class="_3 blank"> </span>slocam-se a<span class="_3 blank"> </span>s curvas <span class="_3 blank"> </span>TTT, <span class="_3 blank"> </span>e o t<span class="_3 blank"> </span>amanho </div><div class="t m2 x0 h5 y149 ff1 fs2 fc2 sc0 ls1 ws1">de <span class="_6 blank"> </span>grão <span class="_6 blank"> </span>grande <span class="_6 blank"> </span>di<span class="_3 blank"> </span>ficulta <span class="_6 blank"> </span>a <span class="_6 blank"> </span>formação<span class="_3 blank"> </span> <span class="_6 blank"> </span>da <span class="_6 blank"> </span>perlita, <span class="_6 blank"> </span>já <span class="_6 blank"> </span>que <span class="_6 blank"> </span>a <span class="_1 blank"> </span>mesma <span class="_6 blank"> </span>inicia-<span class="_3 blank"> </span>se <span class="_6 blank"> </span>no <span class="_6 blank"> </span>contorno<span class="_3 blank"> </span> <span class="_6 blank"> </span>de <span class="_6 blank"> </span>grão. <span class="_6 blank"> </span>Então, </div><div class="t m2 x0 h5 y14a ff1 fs2 fc2 sc0 ls1 ws1">tamanho d<span class="_3 blank"> </span>e grão grande favorece a <span class="_3 blank"> </span>formação da marten<span class="_3 blank"> </span>sita. </div><div class="t m0 x5 h2 y14b ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m0 x4 h2 y14c ff1 fs0 fc0 sc0 ls1 ws0">28-<span class="ff4 ls8 ws1"> </span><span class="ws1">Uma <span class="_1f blank"> </span>maior <span class="_2d blank"> </span>homogeneida<span class="_0 blank"></span>de <span class="_2d blank"> </span>das <span class="_1f blank"> </span>austenita <span class="_2d blank"> </span>favore<span class="_0 blank"></span>ce <span class="_1f blank"> </span>o<span class="_3 blank"> </span>u <span class="_2d blank"> </span>dificul<span class="_0 blank"></span>ta <span class="_2d blank"> </span>a <span class="_1f blank"> </span>formação <span class="_2d blank"> </span>da<span class="_0 blank"></span> </span></div><div class="t m0 x5 h2 y14d ff1 fs0 fc0 sc0 ls1 ws1">martensita? E da perlita? </div><div class="t m2 x5 h5 y14e ff1 fs2 fc2 sc0 ls1 ws1">Quanto <span class="_a blank"> </span>mais <span class="_1 blank"> </span>homogên<span class="_3 blank"> </span>ea <span class="_6 blank"> </span>a<span class="_3 blank"> </span> <span class="_6 blank"> </span>a<span class="_3 blank"> </span>ustenita <span class="_1 blank"> </span>mai<span class="_3 blank"> </span>s <span class="_1 blank"> </span>para <span class="_1 blank"> </span>a <span class="_a blank"> </span>direita <span class="_a blank"> </span>deslocam-se <span class="_1 blank"> </span>a<span class="_3 blank"> </span>s <span class="_1 blank"> </span>curvas <span class="_a blank"> </span>TTT, <span class="_1 blank"> </span>lo<span class="_3 blank"> </span>go,os </div><div class="t m2 x0 h5 y14f ff1 fs2 fc2 sc0 ls1 ws1">carbonetos <span class="_3 blank"> </span>residuais<span class="_3 blank"> </span> ou<span class="_3 blank"> </span> reg<span class="_3 blank"> </span>iões <span class="_3 blank"> </span>ricas <span class="_3 blank"> </span>em <span class="_3 blank"> </span>C <span class="_3 blank"> </span>atuam <span class="_3 blank"> </span>como <span class="_3 blank"> </span>nú<span class="_3 blank"> </span>cleos <span class="_3 blank"> </span>para <span class="_3 blank"> </span>a <span class="_3 blank"> </span>formação <span class="_3 blank"> </span>da <span class="_3 blank"> </span>perl<span class="_3 blank"> </span>ita. E<span class="_3 blank"> </span>ntão, <span class="_3 blank"> </span>uma </div><div class="t m2 x0 h5 y150 ff1 fs2 fc2 sc0 ls1 ws1">maior homogen<span class="_3 blank"> </span>eidade favorece a <span class="_3 blank"> </span>formação da mart<span class="_3 blank"> </span>ensita e dificulta a <span class="_3 blank"> </span>formação da p<span class="_3 blank"> </span>erlita.</div><div class="t m0 x72 h2 y150 ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m0 x5 h2 y151 ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m0 x4 h2 y152 ff1 fs0 fc0 sc0 ls1 ws0">29-<span class="ff4 ls8 ws1"> </span><span class="ws1">Quais são os efeit<span class="_0 blank"></span>os dos elementos de liga na formaçã<span class="_0 blank"></span>o da martensita? E da perlita? <span class="_0 blank"></span> </span></div><div class="t m2 x5 h5 y153 ff1 fs2 fc2 sc0 ls1 ws1">Quanto <span class="_6 blank"> </span>maior <span class="_6 blank"> </span>o <span class="_6 blank"> </span>teor <span class="_4 blank"> </span>e <span class="_6 blank"> </span>o <span class="_6 blank"> </span>número <span class="_4 blank"> </span>d<span class="_3 blank"> </span>os <span class="_6 blank"> </span>elementos <span class="_6 blank"> </span>de <span class="_4 blank"> </span>liga,<span class="_3 blank"> </span> <span class="_6 blank"> </span>mais <span class="_4 blank"> </span>num<span class="_3 blank"> </span>erosas <span class="_6 blank"> </span>e <span class="_4 blank"> </span>co<span class="_3 blank"> </span>mplexas <span class="_6 blank"> </span>são <span class="_6 blank"> </span>as </div><div class="t m2 x0 h5 y154 ff1 fs2 fc2 sc0 ls1 ws1">reações. <span class="_3 blank"> </span>Todos <span class="_3 blank"> </span>os <span class="_3 blank"> </span>elementos <span class="_3 blank"> </span>de <span class="_3 blank"> </span>liga (exceto <span class="_3 blank"> </span>o <span class="_3 blank"> </span>Cobalto) <span class="_3 blank"> </span>deslocam <span class="_3 blank"> </span>as <span class="_3 blank"> </span>curvas <span class="_3 blank"> </span>para <span class="_3 blank"> </span>a <span class="_3 blank"> </span>direita, <span class="_3 blank"> </span>retardando<span class="_3 blank"> </span> as </div><div class="t m2 x0 h5 y155 ff1 fs2 fc2 sc0 ls1 ws1">transformações.<span class="_3 blank"> </span> Facil<span class="_3 blank"> </span>itam a<span class="_3 blank"> </span> <span class="_3 blank"> </span>formação <span class="_3 blank"> </span>da <span class="_3 blank"> </span>martensita. <span class="_3 blank"> </span>Co<span class="_3 blank"> </span>mo <span class="_3 blank"> </span>consequência, <span class="_3 blank"> </span>em <span class="_3 blank"> </span>determin<span class="_3 blank"> </span>ados <span class="_3 blank"> </span>aços <span class="_3 blank"> </span>pode-</div><div class="t m2 x0 h5 y156 ff1 fs2 fc2 sc0 ls1 ws1">se obter martensita <span class="_3 blank"> </span>mesmo com resfria<span class="_3 blank"> </span>mento lento.<span class="_3 blank"> </span> </div><div class="t m0 x5 h2 y157 ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m0 x4 h2 y158 ff1 fs0 fc0 sc0 ls1 ws0">30-<span class="ff4 ls8 ws1"> </span><span class="ws1">É possível obter u<span class="_0 blank"></span>m aço com estrutura martensítica<span class="_0 blank"></span> por resfriamento lento?<span class="_0 blank"></span> </span></div><div class="t m2 x5 h5 y159 ff1 fs2 fc2 sc0 ls1 ws1">Sim. <span class="_3 blank"> </span>U<span class="_3 blank"> </span>sando <span class="_4 blank"> </span>as <span class="_4 blank"> </span>curvas <span class="_4 blank"> </span>TTT <span class="_4 blank"> </span>para <span class="_4 blank"> </span>um <span class="_4 blank"> </span>aço <span class="_4 blank"> </span>eutetóide <span class="_4 blank"> </span>para <span class="_4 blank"> </span>esp<span class="_3 blank"> </span>ecificar <span class="_4 blank"> </span>o <span class="_4 blank"> </span>microconstituin<span class="_3 blank"> </span>te <span class="_3 blank"> </span>a<span class="_3 blank"> </span>través </div><div class="t m2 x0 h5 y15a ff1 fs2 fc2 sc0 ls1 ws1">de um resfriamento isotérmico, assumindo que o resfriamento<span class="_3 blank"> </span> inicia-se<span class="_0 blank"></span> a 760</div><div class="t m4 x73 h12 y15b ff1 fs5 fc2 sc0 ls1">0</div><div class="t m2 x74 h5 y15a ff1 fs2 fc2 sc0 ls1 ws1">C. Resfriando rapida<span class="_3 blank"> </span>mente </div><div class="t m2 x0 h5 y15c ff1 fs2 fc2 sc0 ls1 ws1">até <span class="_8 blank"> </span>300</div><div class="t m4 x51 h12 y15d ff1 fs5 fc2 sc0 ls1">0</div><div class="t m2 x5 h5 y15c ff1 fs2 fc2 sc0 ls1 ws1">C, <span class="_8 blank"> </span>permane<span class="_3 blank"> </span>cendo <span class="_8 blank"> </span>p<span class="_3 blank"> </span>or <span class="_8 blank"> </span>20 <span class="_8 blank"> </span>segundo<span class="_3 blank"> </span>s <span class="_8 blank"> </span>e <span class="_8 blank"> </span>então <span class="_7 blank"> </span>resfriado <span class="_8 blank"> </span>rapid<span class="_3 blank"> </span>amente <span class="_8 blank"> </span>em <span class="_8 blank"> </span>á<span class="_3 blank"> </span>gua, <span class="_7 blank"> </span>forma-se <span class="_8 blank"> </span>a </div><div class="t m2 x0 h5 y15e ff1 fs2 fc2 sc0 ls1 ws1">Martensita. </div><div class="t m0 x5 h2 y15f ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m0 x4 h2 y160 ff1 fs0 fc0 sc0 ls1 ws0">31-<span class="ff4 ls8 ws1"> </span><span class="ws1">Qual a % <span class="_3 blank"> </span>de ferrita, <span class="_3 blank"> </span>austeni<span class="_0 blank"></span>ta <span class="_3 blank"> </span>e cementita presente para um <span class="_3 blank"> </span>aço com 0<span class="_3 blank"> </span>,6% de Carbono </span></div><div class="t m0 x5 h2 y161 ff1 fs0 fc0 sc0 ls1 ws1">a 710</div><div class="t m3 x23 h7 y162 ff1 fs3 fc0 sc0 ls1">0</div><div class="t m0 x1d h2 y161 ff1 fs0 fc0 sc0 ls1 ws1">C? </div><div class="t m0 x5 h2 y163 ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m0 xd h2 y164 ff1 fs0 fc0 sc0 ls1 ws1"> </div></div><div class="pi" data-data='{"ctm":[1.000000,0.000000,0.000000,1.000000,0.000000,0.000000]}'></div></div> <div id="pf9" class="pf w0 h0" data-page-no="9"><div class="pc pc9 w0 h0"><img fetchpriority="low" loading="lazy" class="bi x30 y165 we h1f" alt="" src="https://files.passeidireto.com/0203c892-ddaf-475c-b882-1a23f8fb234a/bg9.png"><div class="t m0 x1 h2 y1 ff1 fs0 fc0 sc0 ls1 ws1">9 </div><div class="t m0 x0 h2 y2 ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m0 x32 h2 y32 ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m2 x5 h8 y166 ff5 fs2 fc2 sc0 ls1 ws1">\ue001\ue01d\ue01e <span class="_8 blank"> </span>\ue004</div><div class="t m4 x75 h9 y167 ff5 fs4 fc2 sc0 ls1 ws9">\ue00d\ue00e\ue016 \ue007 \ue00d\ue00e\ue00d\ue00f</div><div class="t m4 x3 hb y168 ff5 fs4 fc2 sc0 ls1 ws9">\ue00d\ue00e\ue00b\ue00b \ue007 \ue00d\ue00e\ue00d\ue00f<span class="_8 blank"> </span><span class="ws1b v1">\ue004 \ue00d\ue00e\ue00b\ue00b\ue01a\ue001\ue010\ue011\ue001\ue00b\ue00b\ue00e\ue01a\ue01a\ue012\ue001+\ue018,,-./<span class="ff1 ws1"> </span></span></div><div class="t m0 x5 h2 y169 ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m2 x5 h8 y16a ff5 fs2 fc2 sc0 ls1 ws1c">0\ue0181 \ue004</div><div class="t m4 x76 hc y16a ff5 fs4 fc2 sc0 ls1 ws6">\ue008\ue00d\ue00d \ue007<span class="_11 blank"> </span>\ue012+<span class="_3 blank"> </span>\ue018,,<span class="_d blank"> </span>\ue004<span class="_8 blank"> </span>\ue008\ue00d\ue00d \ue007<span class="_11 blank"> </span>\ue00b<span class="_3 blank"> </span>\ue00b\ue00e\ue01a\ue01a<span class="_d blank"> </span>\ue004<span class="_8 blank"> </span>\ue00f\ue00f\ue00e\ue016\ue016\ue012\ue0012\ue0113.\ue0184-.<span class="_3 blank"> </span>/<span class="_0 blank"></span><span class="ff1 ws1"> </span></div><div class="t m0 x5 h2 y16b ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m0 x4 h2 y16c ff1 fs0 fc0 sc0 ls1 ws0">32-<span class="ff4 ls8 ws1"> </span><span class="ws1">Determinar <span class="_a blank"> </span>a qu<span class="_0 blank"></span>antidade <span class="_5 blank"> </span>de <span class="_5 blank"> </span>perlita p<span class="_0 blank"></span>ara <span class="_5 blank"> </span>um <span class="_5 blank"> </span>aço <span class="_5 blank"> </span>com <span class="_11 blank"> </span>0,5% <span class="_5 blank"> </span>de <span class="_5 blank"> </span>Carbono <span class="_5 blank"> </span>o <span class="_5 blank"> </span>qual <span class="_11 blank"> </span>foi </span></div><div class="t m0 x5 h2 y16d ff1 fs0 fc0 sc0 ls1 ws1">resfriado lentamente a par<span class="_0 blank"></span>tir de 860</div><div class="t m3 x11 h7 y16e ff1 fs3 fc0 sc0 ls1">0</div><div class="t m0 x14 h2 y16d ff1 fs0 fc0 sc0 ls1 ws1">C até a temperatu<span class="_0 blank"></span>ra ambiente. </div><div class="t m2 x5 h5 y16f ff1 fs2 fc2 sc0 ls1 ws1">De 870° a 780°<span class="_3 blank"> </span>C: Austenita com 0,5%C; <span class="_3 blank"> </span> </div><div class="t m2 x5 h5 y170 ff1 fs2 fc2 sc0 ls1 ws1">De <span class="_a blank"> </span>780° a <span class="_a blank"> </span>727°C: <span class="_a blank"> </span>f<span class="_3 blank"> </span>errita <span class="_a blank"> </span>se se<span class="_0 blank"></span>para da <span class="_a blank"> </span>austenita, conteúdo <span class="_5 blank"> </span>de <span class="_a blank"> </span>ca<span class="_3 blank"> </span>rbono <span class="_a blank"> </span>d<span class="_3 blank"> </span>esta <span class="_a blank"> </span>aumen<span class="_3 blank"> </span>ta <span class="_a blank"> </span>para </div><div class="t m2 x0 h5 yd6 ff1 fs2 fc2 sc0 ls1 ws1">0,76%C; </div><div class="t m2 x4f h8 y171 ff5 fs2 fc2 sc0 ls1 ws13">\ue01c5</div><div class="t m4 x58 h20 y171 ff5 fs4 fc2 sc0 lsf">\ue004<span class="ls1 ws1d v7">\ue00d\ue00e\ue00c \ue007 \ue00d<span class="_3 blank"> </span>\ue00e\ue00d\ue00f\ue00f</span></div><div class="t m4 x30 h9 y172 ff5 fs4 fc2 sc0 ls1 ws6">\ue00d\ue00e\ue00b\ue016 \ue007<span class="_11 blank"> </span>\ue00d\ue00e\ue00d\ue00f<span class="_3 blank"> </span>\ue00f</div><div class="t m2 x77 h5 y171 ff1 fs2 fc2 sc0 ls1 ws1"> </div><div class="t m2 x5 h5 y173 ff1 fs2 fc2 sc0 ls1 ws1"> </div><div class="t m2 x4f h8 y174 ff5 fs2 fc2 sc0 ls1 ws13">\ue01c5</div><div class="t m4 x58 hc y174 ff5 fs4 fc2 sc0 ls1 wsb">\ue004 \ue00d\ue00e\ue016\ue013\ue00a<span class="ff1 ws1"> </span></div><div class="t m4 x5 hc y175 ff1 fs4 fc2 sc0 ls1 ws1"> </div><div class="t m2 x5 h5 y176 ff1 fs2 fc2 sc0 ls1 ws1">A <span class="_a blank"> </span>727°C a <span class="_a blank"> </span>compo<span class="_3 blank"> </span>sição <span class="_a blank"> </span>da austenita <span class="_a blank"> </span>é<span class="_3 blank"> </span> <span class="_a blank"> </span>de <span class="_5 blank"> </span>0,76%C e <span class="_a blank"> </span>a <span class="_a blank"> </span>q</div><div class="t m4 x78 hc y176 ff1 fs4 fc2 sc0 ls1 ws1">uantidade <span class="_a blank"> </span>de <span class="_a blank"> </span>perlita (</div><div class="t m2 x79 h5 y176 ff1 fs2 fc2 sc0 ls1 ws1">porcenta<span class="_3 blank"> </span>gem <span class="_a blank"> </span>no </div><div class="t m2 x0 h5 y177 ff1 fs2 fc2 sc0 ls1 ws1">material) é de 64,8<span class="_3 blank"> </span>%. </div><div class="t m0 x0 h2 y178 ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m0 x4 h2 y179 ff1 fs0 fc0 sc0 ls1 ws0">33-<span class="ff4 ls8 ws1"> </span><span class="ws1">Calcular <span class="_3 blank"> </span>a <span class="_4 blank"> </span>% <span class="_4 blank"> </span>de <span class="_4 blank"> </span>ferrita, <span class="_3 blank"> </span>cementita <span class="_4 blank"> </span>e <span class="_3 blank"> </span>perlita <span class="_4 blank"> </span>a <span class="_4 blank"> </span>temperatura <span class="_3 blank"> </span>ambiente <span class="_3 blank"> </span>para <span class="_4 blank"> </span>os <span class="_4 blank"> </span>seguintes </span></div><div class="t m0 x5 h2 y14e ff1 fs0 fc0 sc0 ls1 ws1">aços: </div><div class="t m0 x5 h2 y17a ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m0 x5 h2 y17b ff1 fs0 fc0 sc0 ls1 ws0">a-<span class="ff4 ls2 ws1"> </span><span class="ws1">0,2% de C </span></div><div class="t m0 xa h2 y17c ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m2 x5 h5 y17d ff1 fs2 fc2 sc0 ls1 ws1">A <span class="_4 blank"> </span>solubilidad<span class="_3 blank"> </span>e <span class="_4 blank"> </span>de <span class="_4 blank"> </span>carbono <span class="_6 blank"> </span>na <span class="_4 blank"> </span>ferrita <span class="_4 blank"> </span>à <span class="_4 blank"> </span>temperatu<span class="_3 blank"> </span>ra <span class="_4 blank"> </span>ambiente <span class="_4 blank"> </span>p<span class="_3 blank"> </span>ode <span class="_4 blank"> </span>ser <span class="_4 blank"> </span>considerad<span class="_3 blank"> </span>a <span class="_4 blank"> </span>nula. <span class="_4 blank"> </span>Com<span class="_3 blank"> </span> </div><div class="t m2 x0 h5 y17e ff1 fs2 fc2 sc0 ls1 ws1">isso, <span class="_4 blank"> </span>abaixo <span class="_4 blank"> </span>d<span class="_3 blank"> </span>o <span class="_4 blank"> </span>ponto <span class="_4 blank"> </span>eutetóid<span class="_3 blank"> </span>e <span class="_3 blank"> </span>h<span class="_3 blank"> </span>á <span class="_4 blank"> </span>uma <span class="_4 blank"> </span>precipita<span class="_3 blank"> </span>ção <span class="_4 blank"> </span>de <span class="_4 blank"> </span>cementita <span class="_4 blank"> </span>na <span class="_6 blank"> </span>ferrita, <span class="_4 blank"> </span>porque <span class="_4 blank"> </span>a <span class="_4 blank"> </span>solubilida<span class="_3 blank"> </span>de <span class="_4 blank"> </span>do </div><div class="t m2 x0 h5 y17f ff1 fs2 fc2 sc0 ls1 ws1">carbono n<span class="_3 blank"> </span>esta cai a quase zero<span class="_3 blank"> </span>. </div><div class="t m0 xa h2 y180 ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m2 xa h8 y181 ff5 fs2 fc2 sc0 ls1 ws1e">\ue005\ue01e6 \ue004</div><div class="t m4 x6 h9 y182 ff5 fs4 fc2 sc0 ls1 ws8">\ue0057 \ue007 \ue0058</div><div class="t m4 x6 ha y183 ff5 fs4 fc2 sc0 ls1 ws1f">\ue0059 \ue007 \ue0058<span class="_8 blank"> </span><span class="lsf v1">\ue004</span><span class="ws9 v2">\ue00d\ue00e\ue00f \ue007 \ue00d</span></div><div class="t m4 x2b hb y183 ff5 fs4 fc2 sc0 ls1 ws6">\ue016\ue00e\ue016\ue00b \ue007<span class="_11 blank"> </span>\ue00d<span class="_8 blank"> </span><span class="ws7 v1">\ue004 \ue001\ue00d\ue00e\ue00d\ue00f\ue009\ue009\ue00a\ue001\ue010\ue011\ue001\ue00f\ue00e\ue009\ue009\ue012<span class="_3 blank"> </span>\ue0010\ue0181\ue0184.-./<span class="ff1 ws1"> </span></span></div><div class="t m0 xa h2 y184 ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m2 xa h8 y185 ff5 fs2 fc2 sc0 ls1 ws1">\ue01d\ue01e <span class="_8 blank"> </span>\ue004</div><div class="t m4 x7a h9 y186 ff5 fs4 fc2 sc0 ls1 ws1f">\ue0059 \ue007 \ue0057</div><div class="t m4 x7a ha y187 ff5 fs4 fc2 sc0 ls1 ws1f">\ue0059 \ue007 \ue0058<span class="_8 blank"> </span><span class="ls4 v1">\ue004</span><span class="ws6 v2">\ue016\ue00e\ue016\ue00b \ue007 \ue00d\ue00e\ue00f</span></div><div class="t m4 x2b hf y187 ff5 fs4 fc2 sc0 ls1 ws9">\ue016\ue00e\ue016\ue00b \ue007 \ue00d<span class="_2e blank"> </span><span class="ws7 v1">\ue004 \ue001\ue00d\ue00e\ue009\ue00b\ue00d\ue008\ue001\ue010\ue011\ue001\ue009\ue00b\ue00e\ue00d\ue008\ue012\ue001+\ue018,,-./</span></div><div class="t m0 x7b h2 y185 ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m0 xa h2 y188 ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m0 x5 h2 y189 ff1 fs0 fc0 sc0 ls1 ws0">b-<span class="ff4 ls3 ws1"> </span><span class="ws1">0,8% de C </span></div><div class="t m0 xa h2 y18a ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m2 xa h8 y18b ff5 fs2 fc2 sc0 ls1 ws1e">\ue005\ue01e6 \ue004</div><div class="t m4 x6 h9 y18c ff5 fs4 fc2 sc0 ls1 ws8">\ue0057 \ue007 \ue0058</div><div class="t m4 x6 ha yba ff5 fs4 fc2 sc0 ls1 ws1f">\ue0059 \ue007 \ue0058<span class="_8 blank"> </span><span class="lsf v1">\ue004</span><span class="ws9 v2">\ue00d\ue00e\ue00a \ue007 \ue00d</span></div><div class="t m4 x2b hf yba ff5 fs4 fc2 sc0 ls1 ws6">\ue016\ue00e\ue016\ue00b \ue007<span class="_11 blank"> </span>\ue00d<span class="_8 blank"> </span><span class="ws7 v1">\ue004 \ue001\ue00d\ue00e\ue008\ue008\ue009\ue009\ue001\ue010\ue011\ue001\ue008\ue008\ue00e\ue009\ue009\ue012<span class="_3 blank"> </span>\ue0010\ue0181\ue0184.-./</span></div><div class="t m0 x7c h2 y18b ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m0 xa h2 y18d ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m2 xa h8 y18e ff5 fs2 fc2 sc0 ls1 ws1">\ue01d\ue01e <span class="_8 blank"> </span>\ue004</div><div class="t m4 x7a h9 y18f ff5 fs4 fc2 sc0 ls1 ws1f">\ue0059 \ue007 \ue0057</div><div class="t m4 x7a ha y190 ff5 fs4 fc2 sc0 ls1 ws1f">\ue0059 \ue007 \ue0058<span class="_8 blank"> </span><span class="ls4 v1">\ue004</span><span class="ws6 v2">\ue016\ue00e\ue016\ue00b \ue007 \ue00d\ue00e\ue00a</span></div><div class="t m4 x2b hf y190 ff5 fs4 fc2 sc0 ls1 ws9">\ue016\ue00e\ue016\ue00b \ue007 \ue00d<span class="_2e blank"> </span><span class="ws7 v1">\ue004 \ue001\ue00d\ue00e\ue00a\ue00a\ue001\ue010\ue011\ue001\ue00a\ue00a\ue012\ue001+\ue018,,-./</span></div><div class="t m0 x7d h2 y18e ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m0 xa h2 y191 ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m0 x5 h2 y192 ff1 fs0 fc0 sc0 ls1 ws0">c-<span class="ff4 ls5 ws1"> </span><span class="ws1">1,5% de C </span></div><div class="t m2 xa h8 y193 ff5 fs2 fc2 sc0 ls1">\ue001</div><div class="t m2 xa h8 y194 ff5 fs2 fc2 sc0 ls1 ws1e">\ue005\ue01e6 \ue004</div><div class="t m4 x6 h9 y195 ff5 fs4 fc2 sc0 ls1 ws8">\ue0057 \ue007 \ue0058</div><div class="t m4 x6 ha y196 ff5 fs4 fc2 sc0 ls1 ws1f">\ue0059 \ue007 \ue0058<span class="_8 blank"> </span><span class="lsf v1">\ue004</span><span class="ws9 v2">\ue008\ue00e\ue00c \ue007 \ue00d</span></div><div class="t m4 x2b hb y196 ff5 fs4 fc2 sc0 ls1 ws6">\ue016\ue00e\ue016\ue00b \ue007<span class="_11 blank"> </span>\ue00d<span class="_8 blank"> </span><span class="ws7 v1">\ue004 \ue001\ue00d\ue00e\ue00f\ue00f\ue013\ue013\ue001\ue010\ue011\ue001\ue00f\ue00f\ue00e\ue013\ue013\ue012<span class="_3 blank"> </span>\ue0010\ue0181\ue0184.-./<span class="ff1 ws1"> </span></span></div><div class="t m0 xa h2 y197 ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m2 xa h8 y198 ff5 fs2 fc2 sc0 ls1 ws1">\ue01d\ue01e <span class="_8 blank"> </span>\ue004</div><div class="t m4 x7a h9 y199 ff5 fs4 fc2 sc0 ls1 ws1f">\ue0059 \ue007 \ue0057</div><div class="t m4 x7a ha y19a ff5 fs4 fc2 sc0 ls1 ws1f">\ue0059 \ue007 \ue0058<span class="_8 blank"> </span><span class="ls4 v1">\ue004</span><span class="ws6 v2">\ue016\ue00e\ue016\ue00b \ue007 \ue008\ue00e\ue00c</span></div><div class="t m4 x2b hf y19a ff5 fs4 fc2 sc0 ls1 ws9">\ue016\ue00e\ue016\ue00b \ue007 \ue00d<span class="_2e blank"> </span><span class="ws7 v1">\ue004 \ue001\ue00d\ue00e\ue00b\ue00b\ue00c\ue016\ue001\ue010\ue011\ue001\ue00b\ue00b\ue00e\ue00c\ue016\ue012\ue001+\ue018,,-./</span></div><div class="t m0 x7b h2 y198 ff1 fs0 fc0 sc0 ls1 ws1"> </div><div class="t m0 x0 h2 y19b ff1 fs0 fc0 sc0 ls1 ws1"> </div></div><div class="pi" data-data='{"ctm":[1.000000,0.000000,0.000000,1.000000,0.000000,0.000000]}'></div></div>
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