Achieving excellent strength and plasticity of aluminum alloy through refining and densifying precipitates
文献类型：期刊论文
| 作者 | Dai, Renjie1,2; Zhang, Zhenjun2,3; Li, Keqiang4; Liu, Rui2,3; Hou, Jiapeng2,3; Qu, Zhan2,3; Gong, Baishan2; Zhang, Zhefeng2,3 |
| 刊名 | MATERIALS & DESIGN
 |
| 出版日期 | 2024-12-01 |
| 卷号 | 248页码:9 |
| 关键词 | Aluminum alloy Strength and plasticity Precipitates Strain-hardening Dislocation annihilation |
| ISSN号 | 0264-1275 |
| DOI | 10.1016/j.matdes.2024.113439 |
| 通讯作者 | Zhang, Zhenjun(zjzhang@imr.ac.cn) ; Zhang, Zhefeng(zhfzhang@imr.ac.cn) |
| 英文摘要 | Strength and plasticity are basic mechanical properties for wrought Al alloys, and generally exhibit a trade-off relationship. Herein through analyzing the respective effects of precipitates on yield strength and strain hardening, we proposed and quantitatively analyzed a strategy for synchronously strengthening and plasticizing Al alloys by refining and densifying the precipitates, defined as RDP effect. The precipitates were highly refined and densified in three high-Zn 7xxx alloys in order to verify the validity of the RDP effect. The tensile tests show that the high-Zn Al alloys possess ultra-high strength and good plasticity compared to the traditional Al alloys. Further analysis reveals that the densification of precipitates mainly contributes to the ultra-high strength, accounting for over 75%, while the refinement of precipitates suppresses the dislocation annihilation, thus increasing the strain-hardening capacity. Together, these two factors finally contribute to the excellent strength and plasticity matching. This finding will provide strong support for the positive impact of RDP effect on improving the balance between strength and ductility. Besides, this strategy may be considered as an effective one for simultaneously improving the strength and plasticity in high-performance Al alloys. |
| 资助项目 | National Natural Science Foundation of China (NSFC)[52322105] ; National Natural Science Foundation of China (NSFC)[52271121] ; National Natural Science Foundation of China (NSFC)[52321001] ; National Natural Science Foundation of China (NSFC)[52130002] ; National Natural Science Foundation of China (NSFC)[U22A20114] ; National Natural Science Foundation of China (NSFC)[52301177] ; Youth Innovation Promotion Association CAS[2021192] ; Chinese Academy of Sciences (CAS)[174321KYSB20210002] ; IMR Innovation Fund[2023-ZD01] |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001361578400001 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | National Natural Science Foundation of China (NSFC) ; Youth Innovation Promotion Association CAS ; Chinese Academy of Sciences (CAS) ; IMR Innovation Fund |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Zhang, Zhenjun; Zhang, Zhefeng |
| 作者单位 | 1.Northeastern Univ, Sch Mat Sci & Engn, Shenyang 110819, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 3.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 4.Zhejiang Univ, ZJU Hangzhou Global Sci & Technol Innovat Ctr, Hangzhou 311215, Peoples R China |
| 推荐引用方式 GB/T 7714 | Dai, Renjie,Zhang, Zhenjun,Li, Keqiang,et al. Achieving excellent strength and plasticity of aluminum alloy through refining and densifying precipitates[J]. MATERIALS & DESIGN,2024,248:9. |
| APA | Dai, Renjie.,Zhang, Zhenjun.,Li, Keqiang.,Liu, Rui.,Hou, Jiapeng.,...&Zhang, Zhefeng.(2024).Achieving excellent strength and plasticity of aluminum alloy through refining and densifying precipitates.MATERIALS & DESIGN,248,9. |
| MLA | Dai, Renjie,et al."Achieving excellent strength and plasticity of aluminum alloy through refining and densifying precipitates".MATERIALS & DESIGN 248(2024):9. |
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。