Exploring the strength and ductility improvement of Cu-Al alloys
文献类型：期刊论文
| 作者 | Ren, C. X.2,3; Wang, Q.1,2; Hou, J. P.2; Zhang, Z. J.1,2; Yang, H. J.2; Zhang, Z. F.1,2,3 |
| 刊名 | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
 |
| 出版日期 | 2020-06-01 |
| 卷号 | 786页码:12 |
| 关键词 | Cu-Al alloy Strength Ductility Grain size Gradient structure |
| ISSN号 | 0921-5093 |
| DOI | 10.1016/j.msea.2020.139441 |
| 通讯作者 | Ren, C. X.(cxren15s@imr.ac.cn) ; Wang, Q.(gmwang@imr.ac.cn) ; Zhang, Z. F.(zhfzhang@imr.ac.cn) |
| 英文摘要 | Synchronous improvement of the strength and ductility for metallic materials is an everlasting object as the good service performance. In this study, the yield strength (sigma(YS)) and uniform elongation (epsilon(UE)) of Cu-Al alloys with three Al contents, nine grain sizes induced by the controlled annealing treatment, and three gradient structures induced by surface spinning strengthening (3S) treatment were explored. Results show that the sigma(YS) and epsilon(UE) may be enhanced synchronously by increasing Al content from 5Al, 8Al to 11Al, while the sigma(YS) decreases and epsilon(UE) increases when increasing grain size from ultra-fined grain, fine grain to coarse grain, and the sigma(YS) increases obviously and epsilon(UE) decreases slightly by constructing the gradient layer. The trade-off relation between strength and ductility is broken through by increasing Al content, however cannot be broken through by controlling grain size, and cannot be directly broken through by constructing gradient structure. In addition, the Cu-Al alloys with the high Al content, fine grain and gradient layers obtain the superior combination of strength and ductility, and the reason is that the solid-solution strengthening, boundary strengthening and work hardening are combined together. Inspired by these, the composition design, grain size regulation, and gradient structure construction may be considered as the three feasible approaches to enhance the strength and ductility of metallic materials. |
| 资助项目 | National Natural Science Foundation of China (NSFC)[U1664253] ; LiaoNing Revitalization Talents Program[XLYC1808027] |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000541737900034 |
| 出版者 | ELSEVIER SCIENCE SA |
| 资助机构 | National Natural Science Foundation of China (NSFC) ; LiaoNing Revitalization Talents Program |
| 源URL | [http://ir.imr.ac.cn/handle/321006/139538]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Ren, C. X.; Wang, Q.; Zhang, Z. F. |
| 作者单位 | 1.Jihua Lab, Foshan 528200, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Lab Fatigue & Fracture Mat, Shenyang 110016, Peoples R China 3.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ren, C. X.,Wang, Q.,Hou, J. P.,et al. Exploring the strength and ductility improvement of Cu-Al alloys[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2020,786:12. |
| APA | Ren, C. X.,Wang, Q.,Hou, J. P.,Zhang, Z. J.,Yang, H. J.,&Zhang, Z. F..(2020).Exploring the strength and ductility improvement of Cu-Al alloys.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,786,12. |
| MLA | Ren, C. X.,et al."Exploring the strength and ductility improvement of Cu-Al alloys".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 786(2020):12. |
入库方式： OAI收割
来源：金属研究所
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