Effect of Component Proportion on Mechanical Behaviors of Laminated Nanotwinned Cu
文献类型：期刊论文
| 作者 | Wan, Tao1,2; Cheng Zhao2; Lu Lei2 |
| 刊名 | ACTA METALLURGICA SINICA
 |
| 出版日期 | 2023-04-11 |
| 卷号 | 59期号:4页码:567-576 |
| 关键词 | laminated nanotwinned Cu component percentage extra strengthening strain localization gradient plastic deformation |
| ISSN号 | 0412-1961 |
| DOI | 10.11900/0412.1961.2022.00554 |
| 通讯作者 | Lu Lei(llu@imr.ac.cn) |
| 英文摘要 | Laminated metals have the potential for achieving better mechanical properties, such as higher strength, ductility, and work hardening ability. The mechanism that leads to these advances stems from the inhomogeneous plastic deformations between soft and hard components where geometrically necessary dislocations (GNDs) are produced while the two adjacent components are mutually constrained. Many structural factors have already been extensively investigated during the optimization of the laminated structure, such as the effect of layer thickness and the strength differential between components on the overall resulting properties. However, the effect of component composition percentage, an important factor for laminated structures, on the mechanical properties and its underlying mechanism remains elusive. To unravel the effect of component composition percentage on the mechanical properties, we used stable nanotwinned structures as components to build laminated nanotwinned (LNT) Cu materials. Three LNT Cu samples with hard components on the surface layers and soft components in the core layer were designed and prepared by direct-current electrodeposition. The soft component percentages were set as 10%, 50%, and 90%. The mechanical behaviors of LNT Cu were explored by uniaxial tensile tests at room temperature. Yield strengths for all three LNT Cu were higher than that estimated by the rule of mixture, indicating an extra strengthening effect from the LNT structure. The LNT Cu containing 50% soft component (LNT-50%) demonstrated the greatest extra strengthening. Interestingly, full-field strain measurements and microstructure characterizations further indicated that the strain localization of LNT-50% was well suppressed and the lateral strain difference between the soft and hard components was obviously reduced. This indicated that the strong mutual constraint between the two components contributed to the greatest extra strengthening. |
| 资助项目 | National Natural Science Foundation of China[51931010] ; National Natural Science Foundation of China[92163202] ; National Natural Science Foundation of China[52001312] ; Key Research Program of Frontier Science and International Partnership Program, Chinese Academy of Sciences[GJHZ2029] ; China Postdoctoral Science Foundation[2019M661150] ; China Postdoctoral Science Foundation[BX20190336] ; Innovation Fund of Institute of Metal Research, Chinese Academy of Sciences[2021PY02] |
| WOS研究方向 | Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000980757300013 |
| 出版者 | SCIENCE PRESS |
| 资助机构 | National Natural Science Foundation of China ; Key Research Program of Frontier Science and International Partnership Program, Chinese Academy of Sciences ; China Postdoctoral Science Foundation ; Innovation Fund of Institute of Metal Research, Chinese Academy of Sciences |
| 源URL | [http://ir.imr.ac.cn/handle/321006/177644]  |
| 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.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wan, Tao,Cheng Zhao,Lu Lei. Effect of Component Proportion on Mechanical Behaviors of Laminated Nanotwinned Cu[J]. ACTA METALLURGICA SINICA,2023,59(4):567-576. |
| APA | Wan, Tao,Cheng Zhao,&Lu Lei.(2023).Effect of Component Proportion on Mechanical Behaviors of Laminated Nanotwinned Cu.ACTA METALLURGICA SINICA,59(4),567-576. |
| MLA | Wan, Tao,et al."Effect of Component Proportion on Mechanical Behaviors of Laminated Nanotwinned Cu".ACTA METALLURGICA SINICA 59.4(2023):567-576. |
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。