Knowledge Management System of Institue of Mechanics, CAS
| Dislocations and twins in nanocrystalline Ni after severe plastic deformation: the effects of grain size | |
Wu XL(武晓雷) ; Ma E; Wu XL
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| Source Publication | Materials Science And Engineering A-Structural Materials Properties Microstructure And Processing |
| 2008 | |
| Pages | 84-86 |
| Conference Name | 14th International Conference on the Strength of Materials (ICSMA 14) |
| Conference Date | JUN 04-09, 2006 |
| Conference Place | Xian Jiaotong Univ, Xian, PEOPLES R CHINA |
| Abstract | Deformation microstructures have been investigated in nanocrystalline (nc) Ni with grain sizes in the 50-100 nm range. It was found that deformation twinning started to occur in grains of similar to 90 nm, and its propensity increased with decreasing grain size. In most of the nc grains dislocations were observed as well, in the form of individual dislocations and dipoles. It is concluded that dislocation-mediated plasticity dominates for grain sizes in the upper half, i.e. 50-100 nm, of the nanocrystalline regime. (C) 2007 Published by Elsevier B.V. |
| Keyword | Nanocrystalline Metal Plastic Deformation Twinning Dislocation Ni Nanostructured Metals Al Strength Ductility Slip |
| WOS ID | WOS:000256071100019 |
| Indexed By | CPCI-S |
| Language | 英语 |
| Citation statistics | |
| Document Type | 会议论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/25430 |
| Collection | 力学所知识产出(1956-2008) |
| Corresponding Author | Wu XL |
| Recommended Citation GB/T 7714 | Wu XL,Ma E,Wu XL. Dislocations and twins in nanocrystalline Ni after severe plastic deformation: the effects of grain size[C]Materials Science And Engineering A-Structural Materials Properties Microstructure And Processing,2008:84-86. |
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