Analysis of the Cermak-Rothova method for determining the concentration dependence of ternary interdiffusion coefficients with a single diffusion couple

被引：19
作者：
Cheng, K. [1 ]
Chen, W. [1 ]
Liu, D. [1 ,2 ]
Zhang, L. [1 ]
Du, Y. [1 ]
机构：
[1] Cent S Univ, State Key Lab Powder Met, Changsha 410083, Hunan, Peoples R China
[2] Cent S Univ, Sch Mat Sci & Engn, Changsha 410083, Hunan, Peoples R China
来源：
SCRIPTA MATERIALIA | 2014年 / 76卷
基金：
中国国家自然科学基金;
关键词：
Diffusion; Alloys; Diffusion couple; Ternary system; MULTICOMPONENT METALLIC SYSTEMS;
D O I：
10.1016/j.scriptamat.2013.11.033
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Dayananda's method for calculating the average ternary interdiffusion coefficient (D-ij(3)) using a single diffusion couple has recently been extended by Cermak and Rothova to determine the composition-dependent interdiffusion coefficients (D-ij(3)) in ternary systems based on the limitation of j'A in the distance interval <x(1), x(2)>. In the present paper, the authors argue that such a limitation is not applicable, and the so-called Cermak-Rothova approach cannot be used to obtain the "truly" composition-dependent interdiffusion coefficients. (C) 2013 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：5 / 8
页数：4
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