Simulation and observation of dislocation pattern evolution in the early stages of fatigue in a copper single crystal
文献类型:期刊论文
作者 | J. H. Yang ; Y. Li ; S. X. Li ; C. X. Ma ; G. Y. Li |
刊名 | Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
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出版日期 | 2001 |
卷号 | 299期号:1-2页码:51-58 |
关键词 | simulation and observation dislocation pattern the early stages of fatigue copper single crystal cyclic deformation localization strain |
ISSN号 | 0921-5093 |
中文摘要 | During cyclic deformation, the early stages of dislocation pattern formation and evolution of a single-slip-oriented copper single crystal were simulated by using the method of discrete dislocation dynamics and observed by using the electron channeling contrast (ECC) technique in a scanning electron microscopy (SEM). Computer simulation results agree rather well with the experimental observations. Hence, some new mechanisms were proposed. Such as in the early stages of cyclic deformation, the formation and evolution of dislocation veins could originate from the matrix walls which are composed by the same sign of dislocations, and a dipole matrix wall could be formed by combining two matrix walls with the opposite signs of dislocations. (C) 2001 Elsevier Science B.V. All rights reserved. |
原文出处 | |
公开日期 | 2012-04-14 |
源URL | [http://ir.imr.ac.cn/handle/321006/36860] ![]() |
专题 | 金属研究所_中国科学院金属研究所 |
推荐引用方式 GB/T 7714 | J. H. Yang,Y. Li,S. X. Li,et al. Simulation and observation of dislocation pattern evolution in the early stages of fatigue in a copper single crystal[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2001,299(1-2):51-58. |
APA | J. H. Yang,Y. Li,S. X. Li,C. X. Ma,&G. Y. Li.(2001).Simulation and observation of dislocation pattern evolution in the early stages of fatigue in a copper single crystal.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,299(1-2),51-58. |
MLA | J. H. Yang,et al."Simulation and observation of dislocation pattern evolution in the early stages of fatigue in a copper single crystal".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 299.1-2(2001):51-58. |
入库方式: OAI收割
来源:金属研究所
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