Annihilation of persistent slip bands and its effect on the fatigue life of copper single crystals
文献类型：期刊论文
| 作者 | S. X. Li ; M. Y. Li ; R. Zhu ; Y. S. Chao |
| 刊名 | Philosophical Magazine
 |
| 出版日期 | 2004 |
| 卷号 | 84期号:31页码:3323-3334 |
| 关键词 | electron channeling contrast low-amplitude fatigue dislocation-structures cyclic deformation fcc crystals behavior model evolution localization nucleation |
| ISSN号 | 1478-6443 |
| 中文摘要 | In single-slip-oriented copper single crystals, which were cyclically deformed under constant plastic shear strain amplitude control, a persistent slip band (PSB) was initiated on the persistent slip line (PSL) that first formed in the matrix vein dislocation structure. During intermediate temperature recovery (ITR) treatment in vacuum at 245 to 400degreesC, the variations in dislocation configurations and other defects of fatigued specimens were studied by using the scanning electron microscopy (SEM) electron channelling contrast (ECC) and the positron annihilation life (PAL) techniques. The results show that the ladders in the PSBs became curved and broken, or escaped locally until the PSBs disappeared completely during ITR treatment. The annihilation of the PSBs and other dislocation structures in the fatigued specimens prolonged the fatigue life to a certain extent. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/35422]  |
| 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,M. Y. Li,R. Zhu,et al. Annihilation of persistent slip bands and its effect on the fatigue life of copper single crystals[J]. Philosophical Magazine,2004,84(31):3323-3334. |
| APA | S. X. Li,M. Y. Li,R. Zhu,&Y. S. Chao.(2004).Annihilation of persistent slip bands and its effect on the fatigue life of copper single crystals.Philosophical Magazine,84(31),3323-3334. |
| MLA | S. X. Li,et al."Annihilation of persistent slip bands and its effect on the fatigue life of copper single crystals".Philosophical Magazine 84.31(2004):3323-3334. |
入库方式： OAI收割
来源：金属研究所
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