Localization of deformation in copper single crystals during explosive collapse

被引：5
|
作者：
Bondar, MP [1 ]
机构：
[1] Russian Acad Sci, Siberian Div, MA Lavrentev Hydrodynam Inst, Novosibirsk 630090, Russia
来源：
COMBUSTION EXPLOSION AND SHOCK WAVES | 2003年 / 39卷 / 01期
关键词：
axisymmetric explosive loading; high-rate deformation; shear localization; single crystal; close-packed systems;
D O I：
10.1023/A:1022165706454
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
It is established that high-rate axisymmetric loading of single crystals by the method of explosive collapse of a hollow thick-walled cylinder causes deformation that involves all active close-packed slip systems. The spatial distribution of macroscopic sites of strain localization is determined by the crystallography of the active systems in single-crystalline samples. The established correlation between the observed shear bands in the microstructure of copper single crystals and {111} active slip <110> systems of face-centered cubic (FCC) crystals and their symmetric arrangement show that deformation at a rate of approximate to 5 (.) 10(4) sec(-1) occurs according to the crystalline structure of the materials.
引用
收藏
页码：112 / 114
页数：3
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