Harper-dorn creep and specimen size

被引：0
|
作者：
E. Nes
W. Blum
P. Eisenlohr
机构：
[1] Norwegian University of Science and Technology,the Department of Materials Technology and Electrochemistry
[2] University of Erlangen,the Institut fur Werkstoffwissenschaften LS 1
来源：
Metallurgical and Materials Transactions A | 2002年 / 33卷
关键词：
Material Transaction; Dislocation Density; Creep Rate; Stress Exponent; Dynamic Recovery;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Under conditions typical of Harper-Dorn (H-D) creep the statistical slip-length may become comparable to, or even exceed, the specimen diameter (a size effect). It is demonstrated that a consequence of such a size effect is that the rates of dislocation storage and dynamic recovery are reduced and the static recovery rate will exceed the dynamic one. Under such conditions, the analysis shows that the creep rate will scale linearly with the applied stress, a characteristic of H-D creep.
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页码：305 / 310
页数：5
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