| Cyclic deformation and dislocation structure evolution of a copper bicrystal with components rotating gradually along the grain boundary |
| Y. Li; S. X. Li; G. Y. Li; K. Lu
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| 2003
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| 发表期刊 | Zeitschrift Fur Metallkunde
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| ISSN | 0044-3093
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| 卷号 | 94期号:8页码:871-875 |
| 摘要 | The push-pull cyclic deformation of a copper bicrystal with components rotating gradually along the grain boundary (GB) was carried out under constant plastic strain amplitude at room temperature in air. The evolution of slip morphology and dislocation structure was observed by scanning electron microscopy electron channelling contrast technique. It was shown that slip morphology and dislocation structure in one of the grains changed gradually along the GB. This phenomenon can be understood based on the local irreversible rotation of crystals, which exists during the symmetrical push-pull loading. When the secondary slip was localized to form the secondary persistent slip bands, which interacted with the regular walls in the second type of deformation band, then the cell structure was formed. The second type of deformation band is one kind of sites for cell formation. |
| 部门归属 | chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china.;li, y (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china;yli@imr.ac.cn
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| 关键词 | Copper Bicrystal
Dislocation Structure
Grain Boundary
Deformation
Band
Single-crystals
Fatigue
Behavior
Polycrystals
Metals
Bands
Slip
Tricrystals
Amplitude
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| URL | 查看原文
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| WOS记录号 | WOS:000220698200003
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| 引用统计 |
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| 文献类型 | 期刊论文
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| 条目标识符 | http://ir.imr.ac.cn/handle/321006/35904
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| 专题 | 中国科学院金属研究所
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推荐引用方式
GB/T 7714 |
Y. Li,S. X. Li,G. Y. Li,et al. Cyclic deformation and dislocation structure evolution of a copper bicrystal with components rotating gradually along the grain boundary[J]. Zeitschrift Fur Metallkunde,2003,94(8):871-875.
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| APA |
Y. Li,S. X. Li,G. Y. Li,&K. Lu.(2003).Cyclic deformation and dislocation structure evolution of a copper bicrystal with components rotating gradually along the grain boundary.Zeitschrift Fur Metallkunde,94(8),871-875.
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| MLA |
Y. Li,et al."Cyclic deformation and dislocation structure evolution of a copper bicrystal with components rotating gradually along the grain boundary".Zeitschrift Fur Metallkunde 94.8(2003):871-875.
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