Residual stress provides significant strengthening and ductility in gradient structured materials
文献类型：期刊论文
| 作者 | Yang MX(杨沐鑫) ; Li, RG; Jiang P(姜萍); Yuan FP(袁福平); Wang, YD; Zhu, YT; Wu XL(武晓雷)
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| 刊名 | MATERIALS RESEARCH LETTERS
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| 出版日期 | 2019 |
| 卷号 | 7期号:11页码:433-438 |
| 关键词 | Residual stress hetero-deformation induced stress strain hardening nanostructure |
| ISSN号 | 2166-3831 |
| DOI | 10.1080/21663831.2019.1635537 |
| 通讯作者 | Wang, Yan-Dong(ydwang@ustb.edu.cn) ; Zhu, Yun-Tian(ytzhu@ncsu.edu) ; Wu, Xiao-Lei(xlwu@imech.ac.cn) |
| 英文摘要 | Residual stress exists extensively in biological and engineering structures. Here we report that residual stress can be engineered to significantly enhance the strength and ductility of gradient materials. In-situ synchrotron experiments revealed that the strongest strain hardening occurred in the layer with the highest compressive residual stress in a gradient structure. This layer remained elastic longer than adjacent layers during tension, producing high hetero-deformation induced stress to increase strength and enhancing work hardening even after the disappearance of the compressive stress to increase ductility. This finding provides a new paradigm for designing gradient structures for superior mechanical properties. [GRAPHICS] . IMPACT STATEMENT We show that compressive residual stress layer in SMAT-processed gradient material produces hetero-deformation induced hardening, which played a major role in improving strength and ductility. |
| 分类号 | 一类 |
| WOS关键词 | STAINLESS-STEEL ; DEFORMATION ; PLASTICITY |
| 资助项目 | National Key R&D Program of China[2017YFA0204402/3] ; National Natural Science Foundation of China[11572328] ; National Natural Science Foundation of China[11672313] ; National Natural Science Foundation of China[11790293] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB22040503] ; US Army Research Office[W911 NF-12-1-0009] ; US National Science Foundation[DMT-1104667] ; Nanjing University of Science and Technology |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000482364900001 |
| 资助机构 | National Key R&D Program of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; US Army Research Office ; US National Science Foundation ; Nanjing University of Science and Technology |
| 其他责任者 | Wang, Yan-Dong ; Zhu, Yun-Tian ; Wu, Xiao-Lei |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/80021]  |
| 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,Li, RG,Jiang P,et al. Residual stress provides significant strengthening and ductility in gradient structured materials[J]. MATERIALS RESEARCH LETTERS,2019,7(11):433-438. |
| APA | 杨沐鑫.,Li, RG.,姜萍.,袁福平.,Wang, YD.,...&武晓雷.(2019).Residual stress provides significant strengthening and ductility in gradient structured materials.MATERIALS RESEARCH LETTERS,7(11),433-438. |
| MLA | 杨沐鑫,et al."Residual stress provides significant strengthening and ductility in gradient structured materials".MATERIALS RESEARCH LETTERS 7.11(2019):433-438. |
入库方式： OAI收割
来源：力学研究所
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