Interface strain gradient enabled high strength and hardening in laminated nanotwinned Cu
文献类型：期刊论文
| 作者 | Cheng, Zhao1; Wan, Tao1,2; Lu, Lei1 |
| 刊名 | ACTA MATERIALIA
 |
| 出版日期 | 2023-09-01 |
| 卷号 | 256页码:10 |
| 关键词 | Laminated nanotwin Cu Extra strengthening Interface strain gradient Geometrically necessary dislocation Interface spacing |
| ISSN号 | 1359-6454 |
| DOI | 10.1016/j.actamat.2023.119138 |
| 通讯作者 | Lu, Lei(llu@imr.ac.cn) |
| 英文摘要 | Interfaces play a crucial role in mechanical behaviors of laminated materials. In this study, a series of hard/soft nanotwinned Cu laminates with varying interface spacing from 200 to 33 & mu;m are prepared by means of direct current electrodeposition. Simultaneous improvement of strength and work hardening with decreasing interface spacing is found in tensile tests. Extra strengthening and geometrically necessary dislocations (GNDs), but without any strain concentration, are found in the vicinity of interfaces. An obvious strain discrepancy appears across the interface and decreases with decreasing interface spacing. Most importantly, a highest plastic strain gradient appearing in the vicinity of interfaces, regardless of interface spacing, indicates a significant deformation compatibility across the interfaces. The spatially-distributed strengthening mediated by interface contributes for increasing strength and decreasing strain discrepancy by decreasing the interface spacing. |
| 资助项目 | National Natural Science Foundation of China (NSFC)[51931010] ; National Natural Science Foundation of China (NSFC)[92163202] ; Key Research Program of Frontier Science and International partnership program[GJHZ2029] ; Youth Innovation Promotion Association, Chinese Academy of Sciences (CAS) ; [52001312] |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001039831400001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | National Natural Science Foundation of China (NSFC) ; Key Research Program of Frontier Science and International partnership program ; Youth Innovation Promotion Association, Chinese Academy of Sciences (CAS) |
| 源URL | [http://ir.imr.ac.cn/handle/321006/178774]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Lu, Lei |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cheng, Zhao,Wan, Tao,Lu, Lei. Interface strain gradient enabled high strength and hardening in laminated nanotwinned Cu[J]. ACTA MATERIALIA,2023,256:10. |
| APA | Cheng, Zhao,Wan, Tao,&Lu, Lei.(2023).Interface strain gradient enabled high strength and hardening in laminated nanotwinned Cu.ACTA MATERIALIA,256,10. |
| MLA | Cheng, Zhao,et al."Interface strain gradient enabled high strength and hardening in laminated nanotwinned Cu".ACTA MATERIALIA 256(2023):10. |
入库方式： OAI收割
来源：金属研究所
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