Thermodynamic calculation of the phase diagram of the Co-Nb-Ta system

被引：26

作者：

Kumar, KCH ^{[1
]}

Van Rompaey, T ^{[1
]}

Wollants, P ^{[1
]}

机构：

[1] Katholieke Univ Leuven, Dept MTM, B-3001 Heverlee, Belgium

来源：

ZEITSCHRIFT FUR METALLKUNDE | 2002年 / 93卷 / 11期

关键词：

CALPHAD; modelling; optimization; phase diagram Co-Nb-Ta; thermodynamics;

D O I：

10.3139/146.021146

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

A thermodynamic description of the ternary system Co-Nb-Ta is obtained by combining the descriptions of the lower-order systems according to the CALPHAD method. The thermodynamic data set for the binary Co-Nb system is taken from [1], where a new thermodynamic model for the, p-phase was introduced. The It-phase appears in several transition metal systems, including Co-Ta- The model is applied to the Co-Ta system and extended to the ternary Co-Nb-Ta system. The thermodynamic descriptions of the systems Co-Ta, Nb-Ta and Co-Nb-Ta are reported in the present work.

引用

页码：1146 / 1153

页数：8

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