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
收藏
页码:1146 / 1153
页数:8
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