Identifiying creep mechanisms at low stresses

被引：126
作者：
Langdon, TG [1 ]
机构：
[1] Univ So Calif, Dept Mat Sci, Los Angeles, CA 90089 USA
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2000年 / 283卷 / 1-2期
关键词：
creep; denuded zones; diffusion creep; grain boundary sliding; Harper-Dorn creep;
D O I：
10.1016/S0921-5093(00)00624-9
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
There are three possible mechanisms occurring in high temperature creep at Low stresses: diffusion creep. Harper-Dorn creep and grain boundary sliding. This paper examines the characteristics of these three processes and proposes two sets of measurements that may be used to give an unambiguous identification of the dominant creep mechanism. The approach is applied to published creep data and new measurements are reported for a Me-0.55%Zr alloy which per permit a clear distinction between diffusion creep and grain boundary sliding. (C) 2000 Elsevier Science S.A. All rights reserved.
引用
收藏
页码：266 / 273
页数：8
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