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

页码：729 / 734

页数：6

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