Grain size effect on deformation twinning and detwinning
文献类型：期刊论文
| 作者 | Zhu YT; Liao XZ; Wu XL(武晓雷) ; Narayan J
|
| 刊名 | JOURNAL OF MATERIALS SCIENCE
 |
| 出版日期 | 2013-07 |
| 卷号 | 48期号:13页码:4467-4475 |
| 通讯作者邮箱 | ytzhu@ncsu.edu |
| 关键词 | Deformation mechanism Deformation twinning Detwinning Grain size Grain size effect Grain boundaries FCC metals Coarse-grained Nanocrystallines Optimum grain-size Twin boundaries |
| ISSN号 | 0022-2461 |
| 产权排序 | [Zhu, Y. T.; Narayan, J.] N Carolina State Univ, Dept Mat Sci & Engn, Raleigh, NC 27695 USA; [Zhu, Y. T.] Nanjing Univ Sci & Technol, Sch Mat Sci & Engn, Nanjing, Jiangsu, Peoples R China; [Liao, X. Z.] Univ Sydney, Sch Aerosp Mech & Mechatron Engn, Sydney, NSW 2006, Australia; [Wu, X. L.] Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China |
| 通讯作者 | Zhu, YT (reprint author), N Carolina State Univ, Dept Mat Sci & Engn, Box 7907, Raleigh, NC 27695 USA. |
| 合作状况 | 国际 |
| 中文摘要 | This article systematically overviews the grain size effect on deformation twinning and detwinning in face-centered cubic (fcc) metals. With decreasing grain size, coarse-grained fcc metals become more difficult to deform by twinning, whereas nanocrystalline (nc) fcc metals first become easier to deform by twinning and then become more difficult, exhibiting an optimum grain size for twinning. The transition in twinning behavior from coarse-grained to nc fcc metals is caused by the change in deformation mechanisms. An analytical model based on observed deformation physics in nc metals, i.e., grain boundary emission of dislocations, provides an explanation of the observed optimum grain size for twinning in nc fcc metals. The detwinning process is caused by the interaction between dislocations and twin boundaries. Under a certain deformation condition, there exists a grain size range where the twinning process dominates over the detwinning process to produce the highest density of twins. |
| 学科主题 | 损伤、破坏机理和微结构演化 |
| 分类号 | 二类/Q1 |
| 收录类别 | SCI ; EI |
| 资助信息 | National Science Foundation of the United States [DMR-1104667]; Australian Research Council [DP120100510]; National Science Foundation of China [11072243, 11021262, MOST 2010CB631004] |
| 原文出处 | http://dx.doi.org/10.1007/s10853-013-7140-0 |
| 语种 | 英语 |
| WOS记录号 | WOS:000317367200003 |
| 公开日期 | 2013-05-14 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/47229]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Zhu YT,Liao XZ,Wu XL,et al. Grain size effect on deformation twinning and detwinning[J]. JOURNAL OF MATERIALS SCIENCE,2013,48(13):4467-4475. |
| APA | Zhu YT,Liao XZ,Wu XL,&Narayan J.(2013).Grain size effect on deformation twinning and detwinning.JOURNAL OF MATERIALS SCIENCE,48(13),4467-4475. |
| MLA | Zhu YT,et al."Grain size effect on deformation twinning and detwinning".JOURNAL OF MATERIALS SCIENCE 48.13(2013):4467-4475. |
入库方式： OAI收割
来源：力学研究所
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