Improved fatigue resistance of gradient nanograined Cu
文献类型：期刊论文
| 作者 | Long, Jianzhou1; Pan, Qingsong1; Tao, Nairong1; Dao, Ming2; Suresh, Subra3; Lu, Lei1 |
| 刊名 | ACTA MATERIALIA
 |
| 出版日期 | 2019-03-01 |
| 卷号 | 166页码:56-66 |
| 关键词 | Graded nanostructures Surface engineering Fatigue resistance Surface roughening Microstructural convergence |
| ISSN号 | 1359-6454 |
| DOI | 10.1016/j.actamat.2018.12.018 |
| 通讯作者 | Suresh, Subra(ssuresh@ntu.edu.sg) ; Lu, Lei(llu@imr.ac.cn) |
| 英文摘要 | Cyclic stresses generally lead to fatigue damage and failure with important implications for material and component design, safety, performance and lifetime costs in major structural applications. Here we present unique results for copper to demonstrate that a thin superficial layer of graded surface nanostructure over a coarse-grained core suppresses strain localization and surface roughening, thereby imparting unprecedented resistance to both low-cycle and high-cycle fatigue without compromising ductility. Progressive homogenization of the surface-graded copper is shown to be superior in fatigue properties compared to that of any of its homogeneous counterparts with micro-, submicro- or nanograined structures. Since the findings here for enhancing resistance to fatigue are broadly applicable to a wide spectrum of engineering metals and alloys, the present results offer unique pathways to mitigate fatigue damage using a broad variety of processing routes, geometric design considerations, and structural parameters in many practical applications. (C) 2018 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. |
| 资助项目 | National Science Foundation of China[51420105001] ; National Science Foundation of China[51471172] ; National Science Foundation of China[U1608257] ; Key Research Program of Frontier Science, CAS ; Distinguished University Professorship at Nanyang Technological University, Singapore |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000459358200006 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | National Science Foundation of China ; Key Research Program of Frontier Science, CAS ; Distinguished University Professorship at Nanyang Technological University, Singapore |
| 源URL | [http://ir.imr.ac.cn/handle/321006/131963]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Suresh, Subra; Lu, Lei |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China 2.MIT, Dept Mat Sci & Engn, Cambridge, MA 02139 USA 3.Nanyang Technol Univ, Singapore 639798, Singapore |
| 推荐引用方式 GB/T 7714 | Long, Jianzhou,Pan, Qingsong,Tao, Nairong,et al. Improved fatigue resistance of gradient nanograined Cu[J]. ACTA MATERIALIA,2019,166:56-66. |
| APA | Long, Jianzhou,Pan, Qingsong,Tao, Nairong,Dao, Ming,Suresh, Subra,&Lu, Lei.(2019).Improved fatigue resistance of gradient nanograined Cu.ACTA MATERIALIA,166,56-66. |
| MLA | Long, Jianzhou,et al."Improved fatigue resistance of gradient nanograined Cu".ACTA MATERIALIA 166(2019):56-66. |
入库方式： OAI收割
来源：金属研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。