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Back stress strengthening and strain hardening in gradient structure
文献类型：期刊论文
| 作者 | Yang MX(杨沐鑫) ; Pan Y; Yuan FP(袁福平); Zhu YT; Wu XL(武晓雷)
|
| 刊名 | MATERIALS RESEARCH LETTERS
 |
| 出版日期 | 2016 |
| 卷号 | 4期号:3页码:145-151 |
| 通讯作者邮箱 | xlwu@imech.ac.cn |
| 关键词 | Back Stress Geometrically Necessary Dislocations Work Hardening Ductility Gradient Structure |
| ISSN号 | 2166-3831 |
| 产权排序 | [Yang, Muxin; Pan, Yue; Yuan, Fuping; Wu, Xiaolei] Chinese Acad Sci, State Key Lab Nonlinear Mech, Inst Mech, 15 Beisihuan West Rd, Beijing 100190, Peoples R China; [Zhu, Yuntian] North Carolina State Univ, Dept Mat Sci & Engn, Campus Box 7919, Raleigh, NC 27695 USA; [Zhu, Yuntian] Nanjing Univ Sci & Technol, Sch Mat Sci & Engn, 200 Xiaolingwei, Nanjing 210094, Jiangsu, Peoples R China; [Pan, Yue] Tongji Univ, Sch Aerosp Engn & Appl Mech, 1239 Siping Rd, Shanghai 200092, Peoples R China |
| 通讯作者 | Wu, XL (reprint author), Chinese Acad Sci, State Key Lab Nonlinear Mech, Inst Mech, 15 Beisihuan West Rd, Beijing 100190, Peoples R China. |
| 中文摘要 | We report significant back stress strengthening and strain hardening in gradient structured (GS) interstitial-free (IF) steel. Back stress is long-range stress caused by the pileup of geometrically necessary dislocations (GNDs). A simple equation and a procedure are developed to calculate back stress basing on its formation physics from the tensile unloading-reloading hysteresis loop. The gradient structure has mechanical incompatibility due to its grain size gradient. This induces strain gradient, which needs to be accommodated by GNDs. Back stress not only raises the yield strength but also significantly enhances strain hardening to increase the ductility. [GRAPHICS] . |
| 分类号 | 一类 |
| 类目[WOS] | Materials Science, Multidisciplinary |
| 研究领域[WOS] | Materials Science |
| 关键词[WOS] | Back Stress ; Geometrically Necessary Dislocations ; Work Hardening ; Ductility ; Gradient Structure |
| 收录类别 | SCI |
| 原文出处 | http://dx.doi.org/10.1080/21663831.2016.1153004 |
| 语种 | 英语 |
| WOS记录号 | WOS:000385011000003 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/59706]  |
| 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 | Yang MX,Pan Y,Yuan FP,et al. Back stress strengthening and strain hardening in gradient structure[J]. MATERIALS RESEARCH LETTERS,2016,4(3):145-151. |
| APA | Yang MX,Pan Y,Yuan FP,Zhu YT,&Wu XL.(2016).Back stress strengthening and strain hardening in gradient structure.MATERIALS RESEARCH LETTERS,4(3),145-151. |
| MLA | Yang MX,et al."Back stress strengthening and strain hardening in gradient structure".MATERIALS RESEARCH LETTERS 4.3(2016):145-151. |
入库方式： OAI收割
来源：力学研究所
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