Computer Simulation of Fe-Al-Si System Diffusion Couples

被引：0
|
作者：
Omer Van der Biest [1 ]
机构：
[1] Department of Metallurgy and Materials Engineering, Katholieke Universiteit Leuven, Kasteelpark Arenberg 44
来源：
Journal of Materials Science & Technology | 2011年 / 27卷 / 08期
基金：
中国国家自然科学基金;
关键词：
Diffusion kinetics; Fe-Al-Si system; Thermo-calc and DICTRA;
D O I：
暂无
中图分类号：
TG146.21 [];
学科分类号：
080502 ;
摘要：
Diffusion couples, Fe-6.8 wt% Al-1.0 wt% Si/Fe and Fe-6.3 wt% Al-0.9 wt% Si/Fe were constructed and separately annealed at 1050°C for 3 h and at 1000°C for 64 h. The concentration profiles of Fe, Al and Si atoms in these couples were measured by electron probe micro-analysis (EPMA), while the diffusion behavior was also simulated by coupling thermodynamic and kinetic properties of Fe-Al-Si system. The simulation results were in good agreement with the measured concentration profiles showing the validity of dynamic parameters of Fe-Al-Si system. Calculation was made for Fe-7 wt% Al-1 wt% Si/Fe diffusion couples at 1000?C with different diffusion time. Silicon uphill was found under the influence of aluminum.
引用
收藏
页码：729 / 734
页数：6
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