Si-Al、Si-Ba和Al-Ba二元合金熔体组元活度的计算  

Calculation of Component Activities in Si-Al,Si-Ba and Al-Ba Binary Alloy Melts

作　　者：戴年建[1] 姜周华[1] 李阳[1] 刘杨[1] 梁连科[1] 

机构地区：[1]东北大学材料与冶金学院,辽宁沈阳110004

出　　处：《钢铁研究学报》2007年第6期26-29,51,共5页Journal of Iron and Steel Research

基　　金：国家自然科学基金与上海宝钢集团公司联合资助项目(50174012)

摘　　要：根据Miedema二元合金生成热模型,结合相关热力学数据,对硅钙钡系中的各二元合金在1 873 K下的活度进行计算。结果表明,采用该模型对Si-Al合金活度的计算结果与实测结果吻合较好;并对Si-Ba和Al-Ba合金熔体1 873 K下各组元的活度进行了计算,为含钡合金的成分设计和生产提供理论依据。Based on the Miedema model for calculating the formation heat of binary alloy system, activity of each binary system in Si-AI-Ba alloy system at 1873K was calculated combining the relative thermodynamics data. The results show that the activity calculation results of Si-Al alloy are in good agreement with the experimental data using the Miedema model. The activity of Si-Ba and Al-Ba binary system are also calculated to provide the theory for the alloy design and production of barium bearing alloys.

关 键 词：含钡合金 合金熔体 MIEDEMA模型 活度 热力学数据 

分 类 号：TF702.5[冶金工程—钢铁冶金] TF704.1