197page

^113tr -Ef=3 185 c, L50/oCr4l4 "l^Jd+ ltcol a6l +8d9 €CdJtrl. aE A,dg lEe -tr ql6}q €7]6}a.l z]6t€4. A,dg * g 3 _ # EEE B "lxl4 Bo/oo)^J rEg oJ+6J .J+q^l= +^l ^J+++. Eazl S= Fe-crB?oil ^l = l;o/oCr4l el 6Iq e9 aBqoJ +igq, L1o/oo)* rEg sF++ Et+g zlggtr+El ++d ,+^l ril +ol tr- 44 oltrl. f f B 9-5619 S\o/oCr "; S\o/oFe .J+ I zoo'c 4lrl +ts + 4strl-€ al*;I tr +B 6J +qlE ,il 4ol tr 44 ol4. s 'J+g 1,000'c ol^Jel gEE+El ^l B 6I= zl w. .600-800cql^J gd ^)7J BEI =d 6IE ^Itr+ 44 ac =zlcBql #+rJ EIEI E FeCr(otr)ol 'IrlLig_tr -J?ol aElgq 71?'4 oE ^|$aixl *6}al €r+. 4=9 FeCr9 1,200"C of rl H sl =d 6'Ir +rB 6IE 44 g ril zlol = _g_ € trI. irH e-571+ \o/oFe "t 60o/ocr B+gtr 1,100cq1^'l l^le Bqa 6Iq +ts6IH _ 9-q 650-700"Cc1^l z0^)7J BEI =d 6lq hts+ =zlol+. zlzly aL*nltr qq 9l 7- 4C91. dtol 4=gq 9l+. ol"l +!el$ glf.l4. 1800 1600 1400 0 :r,oo u'l ,. 1000 qJ 800 600 400 200 0 ral 9-56 50%Cr50%Fe3 E^l(x 200) 10 20 30 40 50 60 70 80 90 100 Cr(Vo\ f.aJ 9-55 Fe-Cr A}E[ls. f. eJ 9-57 60o/"C r 40"/oF e7J all( x 200) Cr* 4 KSzl E = SCr415 -4451 o tr -g^l 6lq, 415+ ol ^Je 150-200"C oil ^l o oJ 6I q +ts+trI. trH e-s8lg Fe-cr-c9 z4 q =zls.ol4. trfl e-591= t4.so/ocr q lJto/oc€ EI++ zj9-E g+ol E7l + 80o/o €zla}l, L o( L N ^r v I o+d \ tr 1800