Cyclic deformation and fatigue cracking behaviour of polycrystalline Cu, Cu-10 wt% Zn and Cu-32 wt% Zn
文献类型：期刊论文
| 作者 | P. Zhang ; Q. Q. Duan ; S. X. Li ; Z. F. Zhang |
| 刊名 | Philosophical Magazine
 |
| 出版日期 | 2008 |
| 卷号 | 88期号:16页码:2487-2503 |
| 关键词 | polycrystalline copper Cu-Zn alloys cyclic deformation slip bands grain boundary twin boundary fatigue cracking stress-strain response copper single-crystals perpendicular grain-boundary annealing twin boundaries persistent slip bands cu-22-percent-zn alloy dislocation-structures bicrystals initiation amplitude |
| ISSN号 | 1478-6435 |
| 中文摘要 | The cyclic deformation behaviour of polycrystalline Cu, Cu-10 wt% Zn and Cu-32 wt% Zn was systematically investigated in the plastic strain amplitude range of 1 x 10(-4)-4 x 10(-3). The differences in the cyclic stress-strain (CSS) responses and fatigue cracking behaviour between Cu, Cu-10 wt% Zn and Cu-32 wt% Zn were compared. It was found that the occurrence of a cyclic saturation for Cu-10 wt% Zn and Cu-32 wt% Zn strongly depends on the applied strain amplitude, whereas polycrystalline Cu always displays cyclic saturation. Surface deformation morphologies were analyzed by scanning electron microscopy (SEM). One of the major features observed is that the slip bands become increasingly homogenous with Zn addition. The fatigue cracks were found to frequently nucleate along the annealing twin boundaries (TBs) in Cu-10 wt% Zn and Cu-32 wt% Zn, but not in polycrystalline Cu. Based on these experimental results, the cyclic deformation response and fatigue cracking behaviour are discussed, and a developed TB cracking mechanism is proposed to explain the difference in fatigue cracking mechanisms in Cu, Cu-10 wt% Zn and Cu-32 wt% Zn. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/33330]  |
| 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 | P. Zhang,Q. Q. Duan,S. X. Li,et al. Cyclic deformation and fatigue cracking behaviour of polycrystalline Cu, Cu-10 wt% Zn and Cu-32 wt% Zn[J]. Philosophical Magazine,2008,88(16):2487-2503. |
| APA | P. Zhang,Q. Q. Duan,S. X. Li,&Z. F. Zhang.(2008).Cyclic deformation and fatigue cracking behaviour of polycrystalline Cu, Cu-10 wt% Zn and Cu-32 wt% Zn.Philosophical Magazine,88(16),2487-2503. |
| MLA | P. Zhang,et al."Cyclic deformation and fatigue cracking behaviour of polycrystalline Cu, Cu-10 wt% Zn and Cu-32 wt% Zn".Philosophical Magazine 88.16(2008):2487-2503. |
入库方式： OAI收割
来源：金属研究所
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