摘要
基于自由体积理论导出的超额构型熵和超额振动熵，结合 Ｍｉｅｄｅｍａ二元合金生成热模型，得出计算二元合金熔体活度的改进计算式，并对强相互作用体系，提出用校正因子来修正活度值的新方法该公式计算结果与实验值吻合良好。
The improved form of calculation formula for the activities of the components in binary alloys has been derived based on the free volume theory considering excess entropy and Miedema's model for calculating the formation heat of binary alloys. The new method of revising the activities' values has been analyzed for stronger interaction systems. The calculated results are in good agreement with experimental values.
出处
《金属学报》
SCIE
EI
CAS
CSCD
北大核心
2000年第5期492-496,共5页
Acta Metallurgica Sinica
基金
国家自然科学基金!59774027
霍英东青年教师基金
关键词
二元合金系
活度计算式
校正因子
超额构型熵
binary alloy system, calculation formula for activity, correction factor
