摘要
介绍用特征晶体模型描述合金热力学的基本原理和方法。对Ta W相图进行了优化和计算,选择描述有序和无序Ta W合金相吉布斯自由能表达式,并确定其中的参数。计算的相图与前人的计算的一致。讨论有序Ta W合金的热力学,并说明无序Ta W固溶体比有序的金属间化合物更稳定。
The thermodynamic properties of the Ta-W system were evaluated by using a characteristic crystal model to describe the Gibbs energies of various phases including both disordered and ordered phases. A set of thermodynamic parameters was obtained taking into consideration of relevant experimental data. The stability of the disordered and ordered phases in this system was also discussed.
出处
《稀有金属》
EI
CAS
CSCD
北大核心
2005年第3期302-306,共5页
Chinese Journal of Rare Metals
基金
国家自然科学基金资助项目(59671030)
关键词
Ta-W系统
相图
特征晶体模型
热力学
Ta-W system
phase diagram
characteristic crystal model
thermodynamic
