Transactions of the Iron and Steel Institute of Japan
Online ISSN : 1881-1183
Print ISSN : 0021-1583
Thermodynamic Treatment of Solid/Liquid Equilibrium Distribution Coefficients of Solutes in Multi-component Iron Alloys
Zen-ichiro MORITAToshihiro TANAKANorio IMAIAkihito KIYOSEYoshihiko KATAYAMA
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1988 Volume 28 Issue 3 Pages 198-205

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Abstract

In this work, the thermodynamic treatment of the equilibrium distribution coefficient kXo in iron base ternary alloys described in the previous work1, 2) was developed for iron base multi-component alloys and the effects of solute-interactions on the equilibrium distribution coefficient in multi-component iron alloys were discussed thermodynamically. A new paramete for the evaluation of such effects was introduced. Furthermore, the equilibrium distribution coefficients of Cr, Ni, Si, Mn and Mo at various compositions in Fe-Cr-Ni base alloys were measured. Small dependence of kXo of those elements on the concentrations of Cr and Ni in those alloys was found and those results were explained by the application of new parameter.

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