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| Localized Solid-State Amorphization at Grain Boundaries in a Nanocrystalline Al Solid Solution Subjected to Surface Mechanical Attrition | |
Wu XL(武晓雷) ; Tao N; Hong YS(洪友士); Lu J; Lu K; Wu, X (reprint author), Hong Kong Polytech Univ, Dept Mech Engn, Kowloon, Hong Kong, Peoples R China.
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| 发表期刊 | Journal of Physics D-Applied Physics
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| 2005 | |
| 卷号 | 38期号:22页码:4140-4143 |
| ISSN | 0022-3727 |
| 摘要 | Using high-resolution electron microscopy, localized solid-state amorphization (SSA) was observed in a nanocrystalline (NC) Al solid solution (weight per cent 4.2 Cu, 0.3 Mn, the rest being Al) subjected to a surface mechanical attrition treatment. It was found that the deformation-induced SSA may occur at the grain boundary (GB) where either the high density dislocations or dislocation complexes are present. It is suggested that lattice instability due to elastic distortion within the dislocation core region plays a significant role in the initiation of the localized SSA at defective sites. Meanwhile, the GB of severely deformed NC grains exhibits a continuously varying atomic structure in such a way that while most of the GB is ordered but reveals corrugated configurations, localized amorphization may occur along the same GB. |
| 学科领域 | 力学 |
| DOI | 10.1088/0022-3727/38/22/019 |
| 收录类别 | SCI ; EI |
| 语种 | 英语 |
| WOS记录号 | WOS:000233792200020 |
| 关键词[WOS] | DEFORMATION-INDUCED AMORPHIZATION ; METALLIC MATERIALS ; ALLOYS ; DISORDER ; PHASE ; LAYER |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Applied |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://dspace.imech.ac.cn/handle/311007/16647 |
| 专题 | 力学所知识产出(1956-2008) |
| 通讯作者 | Wu, X (reprint author), Hong Kong Polytech Univ, Dept Mech Engn, Kowloon, Hong Kong, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Wu XL,Tao N,Hong YS,et al. Localized Solid-State Amorphization at Grain Boundaries in a Nanocrystalline Al Solid Solution Subjected to Surface Mechanical Attrition[J]. Journal of Physics D-Applied Physics,2005,38,22,:4140-4143. |
| APA | 武晓雷,Tao N,洪友士,Lu J,Lu K,&Wu, X .(2005).Localized Solid-State Amorphization at Grain Boundaries in a Nanocrystalline Al Solid Solution Subjected to Surface Mechanical Attrition.Journal of Physics D-Applied Physics,38(22),4140-4143. |
| MLA | 武晓雷,et al."Localized Solid-State Amorphization at Grain Boundaries in a Nanocrystalline Al Solid Solution Subjected to Surface Mechanical Attrition".Journal of Physics D-Applied Physics 38.22(2005):4140-4143. |
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