Strain gradients and geometrically necessary dislocations in deformed ice single crystals

被引：21
|
作者：
Montagnat, M
Duval, P
Bastie, P
Hamelin, B
机构：
[1] CNRS, Lab Glaciol & Geophys Environm, F-38402 St Martin Dheres, France
[2] CNRS, Spectrometrie Phys Lab, F-38402 St Martin Dheres, France
[3] Inst Max Von Laue Paul Langevin, F-38042 Grenoble 9, France
来源：
SCRIPTA MATERIALIA | 2003年 / 49卷 / 05期
关键词：
strain-gradient plasticity; ice; X-ray diffraction; dislocation structure;
D O I：
10.1016/S1359-6462(03)00303-8
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Hard X-ray diffraction experiments were performed on ice single crystals deformed in torsion. This work shows the relationship between the density of geometrically necessary dislocations and strain gradients. The torsion strain appears to be totally accommodated by geometrically necessary basal screw dislocations. (C) 2003 Acta Materialia Inc. Published by Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：411 / 415
页数：5
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