Grain Refinement of Pure Ti During Plastic Deformation
文献类型：期刊论文
| 作者 | Wu S ; Fan K; Jiang P; Chen SH(陈少华)
|
| 刊名 | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
 |
| 出版日期 | 2010 |
| 卷号 | 527期号:26页码:6917-6921 |
| 通讯作者邮箱 | wu_HSARU@hotmail.com |
| 关键词 | Nanocystalline Dynamic recrystallization Grain refinement Surface mechanical attrition treatment Ti |
| ISSN号 | 0921-5093 |
| 产权排序 | [Wu, S.; Fan, K.] Renmin Univ China, High Sch, Beijing 100080, Peoples R China; [Jiang, P.; Chen, S.] CAS, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China |
| 通讯作者 | Wu, S (reprint author), Renmin Univ China, High Sch, 37 Zhongguancun St, Beijing 100080, Peoples R China. |
| 中文摘要 | The mechanism of grain refinement was studied in titanium subjected to high-rate surface mechanical attrition treatment. By cross-sectional transmission electron microscopy, the deformation structures were systematically characterized in a nanocrystalline (NC) layer of the treated surface which exhibits a grain size gradient. The microstructural evolution with increasing strain involves (1) the formation of slip bands with dislocation-free cells in their interiors, (2) nucleation and migration of high-angle grain boundaries at cell boundaries consisting of high-density tangled dislocations, leading to the formation of submicrosized grains inside the slip bands, followed by (3) the formation of subgrains and dislocation cells inside the submicrosized grains with increasing misorientations, which finally become NC grains. The mechanism of grain refinement was interpreted in terms of the classical migration dynamic recrystallization (DRX) and continuous rotation DRX, respectively, leading to submicrosized and NC grains with increasing strains at high strain rates. The cooperative grain boundary sliding is active at high strain rate, by the presence of arrays of coplanar grain boundaries. (C) 2010 Elsevier B.V. All rights reserved. |
| 类目[WOS] | Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| 研究领域[WOS] | Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 关键词[WOS] | DYNAMIC RECRYSTALLIZATION ; MICROSTRUCTURAL EVOLUTION ; STRUCTURAL REFINEMENT ; FORMATION MECHANISM ; SHEAR LOCALIZATION ; TITANIUM ; METALS ; NANOCRYSTALLIZATION ; TEMPERATURE ; PRINCIPLES |
| 收录类别 | SCI ; EI |
| 语种 | 英语 |
| WOS记录号 | WOS:000283113200018 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/58600]  |
| 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 | Wu S,Fan K,Jiang P,et al. Grain Refinement of Pure Ti During Plastic Deformation[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2010,527(26):6917-6921. |
| APA | Wu S,Fan K,Jiang P,&陈少华.(2010).Grain Refinement of Pure Ti During Plastic Deformation.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,527(26),6917-6921. |
| MLA | Wu S,et al."Grain Refinement of Pure Ti During Plastic Deformation".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 527.26(2010):6917-6921. |
入库方式： OAI收割
来源：力学研究所
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