多元Al合金的热力学和热物理数据库的建立及凝固过程显微组织演变的模拟  

Thermodynamic and Thermophysical Databases of Multi-Component Al Alloys and Simulation on Microstructural Evolution during Solidification

作　　者：杜勇[1] 徐洪辉[1] 孔毅[1] 刘树红[1] 张利军[1] 赵冬冬[1] 李一为[1] 王培生[1] 金展鹏[1] 黄伯云[1] 

机构地区：[1]中南大学粉末冶金国家重点实验室,湖南长沙410083

出　　处：《中国材料进展》2010年第6期28-39,共12页Materials China

基　　金：国家自然科学基金重点项目(50831007)

摘　　要：介绍了相图热力学及热物理性能数据库的建立方法;综述了国内外学者构筑多元Al合金相图热力学和热物理性能数据库的研究工作。并介绍了使用相场方法,使用热力学和热物理性能数据库模拟多元Al合金凝固时显微组织演变的几个实例。最后展望了新一代热力学和热物理性能数据库建立及凝固过程显微组织演变定量模拟未来的可能发展方向。A hybrid approach to establish thermodynamic and thermophysical databases is described, followed by a brief summary on the establishment of thermodynamic and thermophysical databases of multi-component Al alloys. A few of case studies to demonstrate the microstructural evolution of Al alloys during solidification by means of phase field method using the knowledge of both thermodynamic and thermophysical properties are described. Future directions in the estab- lishment of next generation of thermodynamic and thermophysical databases as well as the quantitative microstructural evolution of multi-component and multi-phases alloys are addressed.

关 键 词：相图热力学 热物理性能 相场方法 显微组织 凝固 

分 类 号：TG111.3[金属学及工艺—物理冶金] TG111.4[金属学及工艺—金属学]