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 G; Hong YS(洪友士); Zhou, J (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100080, Peoples R China.
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| Source Publication | Materials Science Forum
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| 2006 | |
| Volume | 503-504Pages:751-756 |
| ISSN | 0255-5476 |
| 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. |
| Subject Area | 力学 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000235943100118 |
| WOS Keyword | SEVERE PLASTIC-DEFORMATION ; NANOSTRUCTURED MATERIALS ; GRAIN-REFINEMENT ; ULTRAFINE GRAIN ; MICROSTRUCTURE ; EVOLUTION ; ALUMINUM |
| WOS Research Area | Science & Technology - Other Topics ; Materials Science |
| WOS Subject | Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/17614 |
| Collection | 力学所知识产出(1956-2008) |
| Corresponding Author | Zhou, J (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100080, Peoples R China. |
| Recommended Citation GB/T 7714 | Zhou J,Sun C,Wu XL,et al. Nanocrystalline Formation During Mechanical Attrition of Cobalt[J]. Materials Science Forum,2006,503-504:751-756. |
| APA | Zhou J.,Sun C.,武晓雷.,Tao N.,Liu G.,...&Zhou, J .(2006).Nanocrystalline Formation During Mechanical Attrition of Cobalt.Materials Science Forum,503-504,751-756. |
| MLA | Zhou J,et al."Nanocrystalline Formation During Mechanical Attrition of Cobalt".Materials Science Forum 503-504(2006):751-756. |
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