Thermodynamic factor in interdiffusion in Fe-Al alloys from the diffuse X-ray scattering

被引：6
|
作者：
Liubich, V
Dorfman, S
Fuks, D
Mehrer, H
机构：
[1] Ben Gurion Univ Negev, Dept Mat Engn, IL-84105 Beer Sheva, Israel
[2] Technion Israel Inst Technol, Dept Phys, IL-32000 Haifa, Israel
[3] Univ Munster, Inst Met Forsch, D-48149 Munster, Germany
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 1998年 / 258卷 / 1-2期
关键词：
interdiffusion; thermodynamic factor; ordering; Fe-Al alloys;
D O I：
10.1016/S0921-5093(98)00918-6
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
We carried out calculations of the thermodynamic factor Phi entering the Darken equation for interdiffusion. Phi is expressed in terms of the energy parameters which describe the ordering process in the binary alloy. Our calculations for Fe-Al alloys show the dependence of Phi on the long-range order parameter. These calculations are performed with the parameters extracted from the diffuse X-ray scattering data on FeAl. We emphasize the influence of the concentration dependence of energy parameters on Phi, for different temperatures in our calculations. (C) 1998 Elsevier Science S.A. All rights reserved.
引用
收藏
页码：65 / 68
页数：4
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