HYDROSTATIC PRESSURE AND MECHANISM OF CREEP IN ALUMINUM

被引:30
作者
MCCORMICK, PG
RUOFF, AL
机构
[1] Department of Materials Science and Engineering, Cornell University, Ithaca
关键词
D O I
10.1063/1.1657294
中图分类号
O59 [应用物理学];
学科分类号
摘要
Hydrostatic pressure has been used as a tool in the study of creep in aluminun to show that there is a change of mechanism associated with the drop of activation energy for creep found as the temperature decreases below about 0.6Tm. Moreover, this change occurs, while the argument of the sinh (Abσ/kT) term in the usual lattice diffusion controlled theories of creep is still small with respect to one, i.e., before any sizeable vacancy supersaturation is build up. © 1969 The American Institute of Physics.
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页码:4812 / +
页数:1
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