On the formation of deformation bands in fatigued copper single crystals
文献类型:期刊论文
作者 | S. X. Li ; X. W. Li ; Z. F. Zhang ; Z. G. Wang ; K. Lu |
刊名 | Philosophical Magazine a-Physics of Condensed Matter Structure Defects and Mechanical Properties
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出版日期 | 2002 |
卷号 | 82期号:16页码:3129-3147 |
关键词 | double slip orientation stress-strain response cyclic deformation stereographic triangle dislocation-structures grain-boundary behavior surface mechanisms bicrystal |
ISSN号 | 0141-8610 |
中文摘要 | The features of the deformation bands (DBs) in copper single crystals under cyclic straining were surveyed. A simple model was proposed to account for the formation of DBs. In this model, both crystal rotation and dislocation density variation induced by cyclic straining were considered. The gradual lattice rotation caused by tension and compression irreversibility is the main driving force for the formation of DBs. The drastic release of mobile dislocations resisted by the primary slip bands is the direct trigger for the formation of DBs. From this analysis, one may understand why the formation of DBs is easier in copper single crystals with double- and multiple-slip orientations than that with single-slip orientation. At the same time the effect of the dislocation avalanche factor on the formation of DBs was discussed. |
原文出处 | |
公开日期 | 2012-04-14 |
源URL | [http://ir.imr.ac.cn/handle/321006/36316] ![]() |
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 | S. X. Li,X. W. Li,Z. F. Zhang,et al. On the formation of deformation bands in fatigued copper single crystals[J]. Philosophical Magazine a-Physics of Condensed Matter Structure Defects and Mechanical Properties,2002,82(16):3129-3147. |
APA | S. X. Li,X. W. Li,Z. F. Zhang,Z. G. Wang,&K. Lu.(2002).On the formation of deformation bands in fatigued copper single crystals.Philosophical Magazine a-Physics of Condensed Matter Structure Defects and Mechanical Properties,82(16),3129-3147. |
MLA | S. X. Li,et al."On the formation of deformation bands in fatigued copper single crystals".Philosophical Magazine a-Physics of Condensed Matter Structure Defects and Mechanical Properties 82.16(2002):3129-3147. |
入库方式: OAI收割
来源:金属研究所
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