ANISOTROPY OF GRAIN BOUNDARY SLIDING IN ZINC BICRYSTALS EXAMINED IN TERMS OF A DISLOCATION CLIMB-GLIDE MECHANISM

被引：22

作者：

HORTON, CAP

BEEVERS, CJ

机构：

[1] Department of Physical Metallurgy and Science of Materials, University of Birmingham, Birmingham 15, England

[2] Now at Materials Division, Central Electricity Research Laboratories, Surrey England

来源：

ACTA METALLURGICA | 1968年 / 16卷 / 05期

关键词：

D O I：

10.1016/0001-6160(68)90145-4

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

An examination of grain boundary sliding in symmetrically oriented bicrystals of high purity zinc has shown that sliding in the absenoe of transcrystalline deformation exhibits a strong dependence on the direction of shear along the boundary plane. This behaviour is explained in terms of a basic mechanism for sliding based upon the movement of lattice dislocations along the boundary by a combination of climb and glide. The mechanism involves dislocation emission from the sliding boundary and can account for observations concerning slide hardening, sub-structure formation in the grain boundary vicinity and the rats controlling process for sliding. © 1968.

引用

页码：733 / &

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