Harper-Dorn creep and specimen size

被引：14

作者：

Nes, E ^{[1
]}

Blum, W

Eisenlohr, P

机构：

[1] Norwegian Inst Technol, Dept Mat Technol & Electrochem, N-7034 Trondheim, Norway

[2] Univ Erlangen Nurnberg, Inst Werkstoffwissensch, D-91058 Erlangen, Germany

来源：

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 2002年 / 33卷 / 02期

基金：

美国能源部;

关键词：

D O I：

10.1007/s11661-002-0091-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

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.

引用

页码：305 / 310

页数：6

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