Knowledge Management System of Institue of Mechanics, CAS
| Step Structure in Cold-Rolled Deformed Nanocrystalline Nickel | |
Zhang XY ; Wu XL(武晓雷); Xia BY; Zhou MZ; Zhou SJ; Jia C; Zhang, XY (reprint author), Guangxi Univ, Sch Phys Sci & Engn Technol, Nanning 530004, Peoples R China.
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| Source Publication | Chinese Physics Letters
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| 2005 | |
| Volume | 22Issue:9Pages:2335-2337 |
| ISSN | 0256-307X |
| Abstract | The microstructure characteristic of the cold-rolled deformed nanocrystalline nickel metal is studied by transmission electron microscopy. The results show that there are step structures nearby the grain boundary (GB), and the contrast of stress field in front of the step corresponds to the step in the shape. It is indicated that the interaction between twins and dislocations is not a necessary condition to realizing the deformation. In the later stage of the deformation when the grain size becomes about 100nm, the deformation can depend upon the moving of the boundary of the stack faults (SFs) which result from the partial dislocations emitted from GBs. However, when the size of SFs grows up, the local internal stress which is in front of the step gradually becomes higher. When this stress reaches a critical value which stops the gliding of the partial dislocations, the SFs will stop to grow up and leave a step structure behind. |
| Subject Area | 力学 |
| Indexed By | SCI ; EI ; CSCD |
| Language | 英语 |
| WOS ID | WOS:000231816800054 |
| WOS Keyword | MOLECULAR-DYNAMICS SIMULATION ; DEFORMATION ; COPPER ; METALS ; DISLOCATION ; STRENGTH |
| WOS Research Area | Physics |
| WOS Subject | Physics, Multidisciplinary |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/17194 |
| Collection | 力学所知识产出(1956-2008) |
| Corresponding Author | Zhang, XY (reprint author), Guangxi Univ, Sch Phys Sci & Engn Technol, Nanning 530004, Peoples R China. |
| Recommended Citation GB/T 7714 | Zhang XY,Wu XL,Xia BY,et al. Step Structure in Cold-Rolled Deformed Nanocrystalline Nickel[J]. Chinese Physics Letters,2005,22,9,:2335-2337. |
| APA | Zhang XY.,武晓雷.,Xia BY.,Zhou MZ.,Zhou SJ.,...&Zhang, XY .(2005).Step Structure in Cold-Rolled Deformed Nanocrystalline Nickel.Chinese Physics Letters,22(9),2335-2337. |
| MLA | Zhang XY,et al."Step Structure in Cold-Rolled Deformed Nanocrystalline Nickel".Chinese Physics Letters 22.9(2005):2335-2337. |
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