Improving the strength and SCC resistance of an Al-5Mg-3Zn alloy with low-angle grain boundary structure
文献类型：期刊论文
| 作者 | Tang, Z. C.1,2; Xu, W.2; Zhao, D. Y.2; Zhang, B.2 |
| 刊名 | JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2023-10-20 |
| 卷号 | 161页码:63-73 |
| 关键词 | Al-5Mg-3 Zn alloy Stress corrosion cracking Low angle grain boundary Nanostructured Dynamic plastic deformation |
| ISSN号 | 1005-0302 |
| DOI | 10.1016/j.jmst.2023.02.063 |
| 通讯作者 | Zhang, B.(bxz011@imr.ac.cn) |
| 英文摘要 | The strength of traditional Al-Mg alloys is relatively low because it mainly relies on solid solution strengthening. Adding a third component to form precipitation can improve their strength, but it usually leads to high-stress corrosion cracking (SCC) sensitivity due to the formation of high-density precipitates at grain boundaries (GBs). So far, it is still challenging to improve the strength of Al-Mg alloys without reducing SCC resistance. Herein, a nanostructured Al-5Mg-3 Zn alloy with a good yield strength of 336 MPa and good elongation was successfully produced. By dynamic plastic deformation and appropriate annealing treatment, near-equiaxed nanograins were introduced in the nanostructured Al-5Mg-3 Zn alloy with a high proportion (71%) of the low-angle grain boundary. TEM statistical investigations show that the precipitation of active T' phase at GBs has been greatly suppressed in the nanostructured Al-5Mg-3 Zn alloy at sensitized conditions, and the area fraction of GB precipitates is reduced from 72% to 21%, which significantly decreases the SCC susceptibility. This study provides guidance for developing advanced Al-Mg alloy with high SCC resistance. (c) 2023 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology. |
| 资助项目 | National Nat- ural Science Foundation of China[52171088] ; Young Elite Scientists Sponsorship Program by CAST[2022QNRC001] |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001003547100001 |
| 出版者 | JOURNAL MATER SCI TECHNOL |
| 资助机构 | National Nat- ural Science Foundation of China ; Young Elite Scientists Sponsorship Program by CAST |
| 源URL | [http://ir.imr.ac.cn/handle/321006/178222]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Zhang, B. |
| 作者单位 | 1.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tang, Z. C.,Xu, W.,Zhao, D. Y.,et al. Improving the strength and SCC resistance of an Al-5Mg-3Zn alloy with low-angle grain boundary structure[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2023,161:63-73. |
| APA | Tang, Z. C.,Xu, W.,Zhao, D. Y.,&Zhang, B..(2023).Improving the strength and SCC resistance of an Al-5Mg-3Zn alloy with low-angle grain boundary structure.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,161,63-73. |
| MLA | Tang, Z. C.,et al."Improving the strength and SCC resistance of an Al-5Mg-3Zn alloy with low-angle grain boundary structure".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 161(2023):63-73. |
入库方式： OAI收割
来源：金属研究所
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