Diffusion controlled creep in nanocrystalline materials under grain growth

被引：23

作者：

Estrin, Y

Gottstein, G

Shvindlerman, LS

机构：

[1] Tech Univ Clausthal, Inst Werkstoffkunde & Werkstotttech, D-38678 Clausthal Zellerfeld, Germany

[2] Rhein Westfal TH Aachen Klinikum, Inst Metallkunde & Met Phys, D-52074 Aachen, Germany

[3] Russian Acad Sci, Inst Solid State Phys, Chernogolovka 142432, Moscow District, Russia

来源：

SCRIPTA MATERIALIA | 2004年 / 50卷 / 07期

关键词：

grain growth; vacancy generation; diffusion creep; Nabarro-Herring creep; Coble creep;

D O I：

10.1016/j.scriptamat.2004.01.002

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We consider diffusion controlled creep in nanostructured materials under the conditions when grain growth occurs concurrently. The Nabarro-Herring and Coble mechanisms are re-visited to calculate the effect of attendant vacancy generation on creep. Strain rate variation that resembles primary and secondary creep behaviour is predicted. (C) 2004 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：993 / 997

页数：5

共 11 条

[1] A MODEL FOR BOUNDARY DIFFUSION CONTROLLED CREEP IN POLYCRYSTALLINE MATERIALS [J].