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�뫗 �쟻�뿴 痍⑥꽦 ( Red Shortness )
: �몺 Hot Shortness ( MnS, FeS ) �넂 S�쓽 �쁺�뼢�쑝濡� 諛쒖깮
�몼 Fe2O3
12. Fe-Fe3C �긽�깭�룄
�뫒 Fe-C Equilibrium Phase Diagram
FIG. 12-1 The Fe-C equilibrium dagram up to 7% cabron. Solid lines indicate Fe-Fe3C diagram; dashed lines indicate Fe-graphite diagram.
�뫓 Fe-C �룊�삎�긽�깭�룄�뿉 愿��븳 �꽕紐�
Cementite�뒗 C 6.67%瑜� �룷�븿�븯�뒗 �쇋�돯�뇺��� ( White Needle State )�쓽 湲덉냽媛� �솕�빀臾쇱씠硫�, ����떒�엳 寃쎈룄媛� �넂怨� �떒�떒�븯硫�, Orthorombic 寃곗젙援ъ“瑜� 媛�吏꾨떎.
�닚泥좎뿉�뒗 慣,款,灌�쓽 3�릪榮좈쳱媛� �엳�떎. �씠寃껋�� �뿭�떆 C瑜� �슜�빐�빐�꽌慣,款,灌�쓽 �쎓繹띌쳱瑜� 留뚮뱺�떎. 慣怨좎슜泥대뒗 PG��� PQ濡� �몴�떆�븯�뒗 �깂�냼�슜�빐�룄�꽑�쓣 媛�吏�怨� �엳�쑝硫�, 723�꼦�뿉�꽌 0.025wt%C瑜� �슜�빐�븳�떎. 款-怨좎슜泥대뒗 E�젏�씠 �몴�떆�븳 寃껉낵 媛숈씠 1130�꼦�뿉�꽌 2.0wt%C瑜� �슜�빐�븳�떎. 灌-怨좎슜泥대뒗 H�젏�씠 �몴�떆�븳 寃껉낵 媛숈씠 1490�꼦�뿉�꽌 0.1wt%C瑜� �슜�빐�븳�떎.
洹몃┝ 12-1�뿉 �몴�떆�븳 �꽑 諛� �젏�뿉 ����븳 �쓽誘몃�� �떎�쓬怨� 媛숈씠 �꽕紐낇븷 �닔 �엳�떎.
A : �닚泥좎쓽 �쓳怨좎젏 ( 1539�꼦 )
AB : 灌-怨좎슜泥댁쓽 ����븳 易꿰쎑渶� ( Liquidus line �삉�뒗 �닜�쇂渶� )�씠硫�, 泥�-�깂�냼�쑖�븸 �뿉�꽌 灌-怨좎슜泥닿�� �젙異쒗븯湲� �떆�옉�븯�뒗 �삩�룄瑜� �몴�떆�븳�떎. �씠 怨≪꽑�씠 �삤瑜몄そ �쑝濡� �씠�룞�븿�뿉 �뵲�씪 媛뺥븯�븯�뒗 寃껋�� �깂�냼�븿�쑀�웾�쓽 利앷���뿉 �뵲�씪�꽌 灌-怨좎슜泥댁쓽 �젙異쒗븯�뒗 �삩�룄媛� ����븯�릺�뒗 寃껋쓣 �몴�떆�븳�떎.
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