Twinning in copper deformed at high strain rates

被引：12

作者：

Cronje, S. ^{[1
]}

Kroon, R. E. ^{[1
]}

Roos, W. D. ^{[1
]}

Neethling, J. H. ^{[2
]}

机构：

[1] Univ Free State, Dept Phys, Bloemfontein, South Africa

[2] Nelson Mandela Metropolitan Univ, Dept Phys, Port Elizabeth, South Africa

来源：

BULLETIN OF MATERIALS SCIENCE | 2013年 / 36卷 / 01期

基金：

新加坡国家研究基金会;

关键词：

Copper; twinning; strain rates; grain sizes;

D O I：

10.1007/s12034-013-0445-4

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Copper samples having varying microstructures were deformed at high strain rates using a split-Hopkinson pressure bar. Transmission electron microscopy results show deformation twins present in samples that were both annealed and strained, whereas samples that were annealed and left unstrained, as well as samples that were unannealed and strained, are devoid of these twins. These deformation twins occurred at deformation conditions less extreme than previously predicted.

引用

页码：157 / 162

页数：6

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