Knowledge Management System of Institue of Mechanics, CAS
| Nanocrystalline Formation during Mechanical Attrition of Cobalt | |
Zhou J; Sun C; Wu XL(武晓雷) ; Tao N; Liu G; Meng X; Hong YS(洪友士); Wu XL(武晓雷)
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| Source Publication | Materials Science Forum |
| 2005-09-22 | |
| Pages | 751-756 |
| Conference Name | 3rd International Conference on Nanomaterials by Severe Plastic Deformation |
| Conference Date | SEP 22-26, 2005 |
| Conference Place | Fukuoka, JAPAN |
| Abstract | The nanocrystalline (nc) formation was studied in cobalt (a mixture of c (hexagonal close packed) and gamma (face-centered cubic) phases) subjected to surface mechanical attrition treatment. Electron microscopy revealed the operation of {10(1) over bar 0}< 11(2) over bar 0 > prismatic and {0001}< 11(2) over bar 0 > basal slip in the E phase, leading to the successive subdivision of grains to nanoscale. In particular, the dislocation splitting into the stacking faults was observed to occur in ultrafine and nc grains. By contrast, the planar dislocation arrays, twins and martensites were evidenced in the gamma phase. The strain-induced gamma ->epsilon martensitic transformation was found to progress continuously in ultrafine and nc grains as the strain increased. The nc formation in the gamma phase was interpreted in terms of the martensitic transformation and twinning. |
| WOS ID | WOS:000235943100118 |
| Indexed By | CPCI-S ; EI |
| Language | 英语 |
| Citation statistics | |
| Document Type | 会议论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/13839 |
| Collection | 力学所知识产出(1956-2008) |
| Corresponding Author | Wu XL(武晓雷) |
| Recommended Citation GB/T 7714 | Zhou J,Sun C,Wu XL,et al. Nanocrystalline Formation during Mechanical Attrition of Cobalt[C]Materials Science Forum,2005:751-756. |
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| File Name/Size | DocType | Version | Access | License | ||
| msf200-751.pdf（938KB） | 会议论文 | 开放获取 | CC BY-NC-SA | View Download | ||
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