SELF-INTERACTION COEFFICIENTS OF Ca AND Mg IN DILUTE Sn-BASED SOLUTION

Abstract

Abstract: The interaction coefficients of Ca.Ti and Mg in the dilute Sn-based solution have been de- termined at 1500℃.Experimental measurements were taken by equilibrating the slag-alloy systems with metallic Sn as flux and graphite as reducing agent under Ar atmosphere mixed with different portion of CO.It was found that a considerable error may produce if the coefficients of ε_(Ca)~(Ca),ε_(Mg)~(Mg)and ε_(Ti)~(Ti)in the molten Sn were neglected when the activities of the components CaO,MgO and TiO_2 in the slags were estimated by this method.

Key words: Sn, free enthalpy, interaction coefficient, slag-metal equilibrium

LIU Huanming The Steel Works No.2,Benxi Iron and Steel Company,Benxi,ChinaYANG Zupan TIAN Yanwen Northeast University of Technology,Shenyang,China LIU Huanming,Engineer,The Laboratory of Steel Works No.2,Benxi Iron and Steel Company,Benxi,Liaoning,China. SELF-INTERACTION COEFFICIENTS OF Ca AND Mg IN DILUTE Sn-BASED SOLUTION[J]. Acta Metallurgica Sinica (English Letters), 1990, 3(8): 71-76.

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SELF-INTERACTION COEFFICIENTS OF Ca AND Mg IN DILUTE Sn-BASED SOLUTION

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