Diffusion-induced stresses and their relaxation

被引：57

作者：

Beke, DL ^{[1
]}

Szabó, IA ^{[1
]}

Erdelyi, Z ^{[1
]}

Opposits, G ^{[1
]}

机构：

[1] Univ Debrecen, Dept Solid State Phys, H-4010 Debrecen, Hungary

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2004年 / 387卷

基金：

匈牙利科学研究基金会;

关键词：

interdiffusion; diffusion-induced stresses; stress relaxation; creep;

D O I：

10.1016/j.msea.2004.01.065

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Possible origins of diffusional stress-free strains and their effects on interdiffusion are treated. Experimental examples of such stress effects (change of the growth rate, bending, failure of wires with coatings, stabilization of multilayers) are exposed and explained. Results of computer simulations, carried out on the basis of Stephenson's coupled equations, are also presented. It is shown that both the "gradient" (the presence of a new term proportional to the stress gradient) and "mobility" (the pressure dependence of the diffusion coefficients) effects can be important. Special features of the above phenomena on nanometre length scale are also considered. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：4 / 10

页数：7

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