Cyclic deformation response and dislocation structure of Cu single crystals oriented for double slip
文献类型：期刊论文
| 作者 | B. Gong ; Z. R. Wang ; Z. G. Wang ; Y. W. Zhang |
| 刊名 | Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
 |
| 出版日期 | 1996 |
| 卷号 | 210期号:1-2页码:94-101 |
| 关键词 | cyclic deformation copper single crystals dislocation structures plastic strain amplitudes 70-30 alpha-brass copper-crystals fcc metals behavior fatigue bands nucleation stress |
| ISSN号 | 0921-5093 |
| 中文摘要 | Cyclic deformation behavior of double-slip oriented Cu single crystals with a stress axis in the [034] direction was investigated under plastic strain control mode for a shear strain amplitude range of 1 x 10(-4) to 5 x 10(-3). Dislocation structures in the tested samples were observed using a transmission electronic microscope. It has been found that the effect of the operation of critical slip in these [034] crystals on cyclic responses and dislocation structures is nearly the same as that of increase in strain amplitude. The nucleation stress and number of cycles for PSB formation at each specific strain amplitude in the double-slip oriented crystals were found to be both considerably lower than those observed in single-slip oriented crystals. This observation is in a good agreement with the Kuhlmann-Wilsdorf and Laird analysis, in that the formation of PSBs is associated with glide behavior on the secondary slip system. A dislocation ''cord'' structure has also been observed and is believed to be caused by the operation of the cross-slip system during cyclic deformation, Labyrinth wall structures were found to form with increase in strain amplitude by the operation of critical slip and cross-slip systems. However, the formation of labyrinth structure was suppressed by the coplanar slip at high strain amplitudes. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/38284]  |
| 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 | B. Gong,Z. R. Wang,Z. G. Wang,et al. Cyclic deformation response and dislocation structure of Cu single crystals oriented for double slip[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,1996,210(1-2):94-101. |
| APA | B. Gong,Z. R. Wang,Z. G. Wang,&Y. W. Zhang.(1996).Cyclic deformation response and dislocation structure of Cu single crystals oriented for double slip.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,210(1-2),94-101. |
| MLA | B. Gong,et al."Cyclic deformation response and dislocation structure of Cu single crystals oriented for double slip".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 210.1-2(1996):94-101. |
入库方式： OAI收割
来源：金属研究所
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