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

被引：20

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

页码：5 / 8

页数：4

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