INTERACTION BETWEEN C AND Sn IN Fe-C-Sn LIQUID SOLUTION

Acta Metall Sin

1988, Vol. 24

Issue (3): 242-247 DOI:

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INTERACTION BETWEEN C AND Sn IN Fe-C-Sn LIQUID SOLUTION

WANG Zhengyue;DU Ting;WANG Longmei Central Iron and Steel Research Institute; Ministry of Metallurgical Industry; Beijing

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WANG Zhengyue;DU Ting;WANG Longmei Central Iron and Steel Research Institute; Ministry of Metallurgical Industry; Beijing. INTERACTION BETWEEN C AND Sn IN Fe-C-Sn LIQUID SOLUTION. Acta Metall Sin, 1988, 24(3): 242-247.

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Abstract The thermodynamic properties of Fe-C-Sn liquid solution have beenstudied by using the solubility method in the temperrature range 1300-1500℃ andby using the iso-tin-activity with silver bath at 1550℃. The results are summarizedas follows: 1. The relation between the solubility of C and the content of Sn in liquid Feare: 1300℃ [%C]_(sat)=4.65-0.086[%Sn] 1400℃ [%C]_(sat)=4.86-0.106[%Sn] 1500℃ [%C]_(sat)=5.13-0.131[%Sn] 2. The solubility of C dependence on the content of Sn and the temperature isobtained as [%C]_(sat)=8.41-0.101[%Sn]-5904(1/T) 3. The temperature dependence of interaction coefficients between Sn and C inC saturated liquid Fe are ε_C~(Sn)=-(27170)/T+20.07; e_(Sn)~C=-(51.29)/T+0.041 4. The temperature dependence of interaction coeffients between Sn and C inliquid Fe are derived as e_C~(Sn)=-(194)/T+0.151; e_(Sn)~C=-(1810)/T+1.39 5. The first and second order interaction coefficients between Sn and C in liq-uid Fe at 1550℃ are determined as e_(Sn)~C=0.12; e_C~(Sn)=0.016; γ_(Sn)~C=0

Key words: Fe-C-Sn solution C-Sn interaction solubility method iso-activity method

Received: 18 March 1988

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https://www.ams.org.cn/EN/ OR https://www.ams.org.cn/EN/Y1988/V24/I3/242

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