ELECTRICAL RESISTIVITY OF CYCLICALLY DEFORMED COPPER

被引：85

作者：

POLAK, J

机构：

[1] Institute of Metallurgy, Czechosl. Acad. Sci., Brno, Brno

来源：

CZECHOSLOVAK JOURNAL OF PHYSICS | 1969年 / 19卷 / 03期

关键词：

D O I：

10.1007/BF01712868

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The change of the electrical resistivity of copper cyclically deformed in torsion at room temperature and in liquid nitrogen was measured. The fatigue life, hardening and the increments of resistivity of specimens deformed at the two temperatures differed appreciably. The increments of resistivity as a function of the number of cycles indicated saturation. Isochronal annealing made it possible to separate the contribution of point defects and of dislocations to resistivity. Using transmission electron microscopy the dislocation structure was found inhomogeneous. The average number of point defects and dislocations in fatigued specimens was evaluated. © 1969 Czechoslovak Academy of Sciences.

引用

页码：315 / &

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