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q -dE^11 6H =J 31 3 €e414. ole+ ?ol =BEql ql6}q +4+ SFg dflg tt?ol?+ +4.9s21 g g++ +g614l .Jq+= g4"J €tolq, d9 +=q +4zldol 9lets a- +t"I 9l6}q dgE t+e fl4 'Jqf+. 4l 2 A 8EtrlelSe}|s 1. FeE ^Jgql^-l nld g *4 zlolzlt e10 c olNtol E Ec "J *4 z}_e flz}9 ul I ol HoJ4. ole+ ?3 eq HEfl= +fH4(allotropic transformation)+ .JtrI. A,H4 : FaH4 ol4 , 74. a oE AnH4 : FrHrI ol4, Ae = v4 zlzlHulE EiHEIe+= gq flzl.9 EIg, 4zl4 Ell gHsI. 9ll. zI^JHEI"J9 zI4 9E H4l ol4. ql= =E FeE ^Jgql^l 'tzlc olzlt * zaoc =rl ql^'l +4 6l zI^Jg 9lol44Z ttzlCnl-A €r}. ol HEI= 47lHu]l (magnetic transformation)4 +4. rJzlCg g= gEE ard, E= zITlH4d(Curie point)olEl +tr}. lel4 er4 ql^] flz}9 tsllgE HEI= "J"l4zl g*=trI. zlzlH4ql^] zlzlrJzl ++g Fe, Co, Nlol4. Z. gE4B"l tl* f*ol ^I+qolzlt, a elql {zlz.lagt, ill4HEi, ziCH+, Hl g H+ sE xds-tr 4zlHEl 5g +a+q. 3. Pt-Pt Rh(Ph10 f E t3o/oEJAN-): 1500 C = . _ tr ts (crloo/o. xigozaJ+d)-"J+g (Ni 94.5o/o, MnZ.So/o, AI2o/o, Silo/o9 6J?d) : 7200"C E- =r-EQ(constantan) : 250"C +. t"49 a+ CE += rolgE tol " _ I^J E= rtl ? + 4"J e+ql F:1-1*1 :1 trI+^] +B4os Hslrl? + 9l= H+= SsBol IrE z|+E= 1ol gq HalTI €4 " _ 4 ^Jq ++r+ lttg ++ol Br{l +=g qlel el= 5tr ttol + zl] ol u -e F:l-21-1 = 0 oll zI*E= 0ol €+. +, Hshl? + 9l= B+7t !ioE-tr- EHalTI gtrI.