Knowledge Management System of Institue of Mechanics, CAS
| Dislocations in the crystallites of nanocrystalline alpha-Fe - A molecular dynamics study | |
Chen ZY(陈致英) ; Ding JQ(丁家强); Chen, ZY (reprint author), CHINESE ACAD SCI,INST MECH,LAB NONLINEAR MECH CONINUOUS MEDIA,BEIJING 100080,PEOPLES R CHINA.
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| Source Publication | Journal of Materials Science & Technology
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| 1996 | |
| Volume | 12Issue:6Pages:476-478 |
| ISSN | 1005-0302 |
| Abstract | Molecular dynamics simulations are carried out in order to study the atomic structure of crystalline component, of nanocrystalline alpha-Fe when it is consolidated from small grains. A two-dimensional computational block is used to simulate the consolidation process. All the preset dislocations in the original grains glide out of them in the consolidation process, but new dislocations can generate when the grain size is large enough. It shows that dislocations exist in the consolidated material rather than in the original grains. Whether dislocations exist in the crystalline component of the resultant model nana-material depends upon grain size. The critical value of grain size for dislocation generation appears to be about 9 nm. This result agrees with experiments qualitatively. |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:A1996WD93400017 |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/39068 |
| Collection | 力学所知识产出(1956-2008) |
| Corresponding Author | Chen, ZY (reprint author), CHINESE ACAD SCI,INST MECH,LAB NONLINEAR MECH CONINUOUS MEDIA,BEIJING 100080,PEOPLES R CHINA. |
| Recommended Citation GB/T 7714 | Chen ZY,Ding JQ,Chen, ZY . Dislocations in the crystallites of nanocrystalline alpha-Fe - A molecular dynamics study[J]. Journal of Materials Science & Technology,1996,12,6,:476-478. |
| APA | Chen ZY,Ding JQ,&Chen, ZY .(1996).Dislocations in the crystallites of nanocrystalline alpha-Fe - A molecular dynamics study.Journal of Materials Science & Technology,12(6),476-478. |
| MLA | Chen ZY,et al."Dislocations in the crystallites of nanocrystalline alpha-Fe - A molecular dynamics study".Journal of Materials Science & Technology 12.6(1996):476-478. |
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