摘要
结合最新报道的Al-Zn-Fe三元系热力学数据,利用CALPHAD技术,对Al-Zn-Fe三元系的热力学模型参数进行优化;并制备Al96.75Zn3.25/Fe(at%)扩散偶,将其在300℃下退火52.5天后取出水淬,利用EPMA对扩散层中存在的相进行检测。研究结果表明,优化后的Al-Zn-Fe三元数据计算所得各二元系相图、三元等温截面相图及热力学数据与实验值相符,该模型及参数可作为向高元体系外推的基础。
Thermodynamic optimization of the Al-Zn-Fe system was performed by CALPHAD method considering the experimental phase diagrams and thermodynamic data available from literature.A diffusion couple of Al96.75Zn3.25/Fe（at%） was prepared and annealed at 300 ℃ for 52.5 days,which was then analyzed by electron microprobe analysis.The calculated thermodynamic properties as well as phase diagrams for the binary and ternary systems agreed well with the experimental data.
出处
《上海金属》
CAS
2010年第5期8-13,34,共7页
Shanghai Metals
基金
国家科技支撑计划课题(2007BAE09B03)
贵州省"十一五"重大专项(20076003)
中国铝业公司科技发展基金(2007KJA07)
长江学者和创新团队发展计划(IRT0739)资助
关键词
Al-Zn-Fe三元系
相图
热力学计算
扩散偶法
Al-Zn-Fe Ternary System
Phase Diagram
Thermodynamic Calculation
Diffusion Couple
