Regulating the grain refinement and rolling properties of coarse-crystalline Mg-Zn-Gd-Ca-Mn alloy through multi-pass cold rolling and annealing
文献类型：期刊论文
| 作者 | Li, Jiaqi1; Li, Xihai2; Xu, Tianyi1; Yan, Hong1; Mao, Yaozong3; Chen, Rongshi2 |
| 刊名 | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
 |
| 出版日期 | 2024-09-01 |
| 卷号 | 911页码:9 |
| 关键词 | Mg -Zn -Gd -Ca -Mn alloy Plastic deformation Twins Grain refinement Static recrystallization |
| ISSN号 | 0921-5093 |
| DOI | 10.1016/j.msea.2024.146940 |
| 通讯作者 | Yan, Hong(yanhong5871@163.com) ; Chen, Rongshi(rschen@imr.ac.cn) |
| 英文摘要 | The newly developed Mg-Zn-RE (rare earth) alloy sheet shows significant prospects for 3C applications due to its superior room-temperature malleability compared to the commercial AZ31 alloy. However, the casting ingots of these alloys often exhibit coarse grains due to low alloying element content and the absence of the grain-refining element Zr, making them susceptible to significant cracking while hot-rolling. This study applies a multi-pass cold rolling technique with minimal reduction to a cast Mg-Zn-Gd-system alloy characterized by coarse grains, followed by a static annealing process to enhance its rolling capability. The impact of cold rolling and annealing temperatures on microstructure, plastic deformation mechanism, and static recrystallization (SRX) behavior were studied. It was found that multi-pass cold rolling with minimal decrease promoted the generation of more twins and slip lines, resulting in more uniform deformation and a substantial accumulated rolling strain of 10 %. Consequently, the significant accumulated strain, coupled with stress concentration at positions such as grain boundaries, twin boundaries, and dislocation tangles, acted as nucleation sites for complete static recrystallization at a specific annealing temperature of 375 degrees C. As a result, the coarse cast grains were successfully refined from 400 mu m to 37 mu m. Fortunately, this improvement has significantly enhanced the hot-rolling qualities, removing fractures throughout the process. This advancement not only enables industrial-scale rolling but also enhances production efficiency. |
| 资助项目 | National Natural Science Foundation of China[52271107] ; Natural Science Foundation of Shandong Province[ZR2021ME241] ; Bintech-IMR R D Program[GYY-JSBU-2022-012] |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001273595300001 |
| 出版者 | ELSEVIER SCIENCE SA |
| 资助机构 | National Natural Science Foundation of China ; Natural Science Foundation of Shandong Province ; Bintech-IMR R D Program |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Yan, Hong; Chen, Rongshi |
| 作者单位 | 1.Shandong Univ Sci & Technol, Sch Mat Sci & Engn, Qingdao 266590, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shi changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China 3.Binzhou Inst Technol, Shandong Key Lab Adv Aluminium Mat & Technol, Binzhou 256606, Shandong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Jiaqi,Li, Xihai,Xu, Tianyi,et al. Regulating the grain refinement and rolling properties of coarse-crystalline Mg-Zn-Gd-Ca-Mn alloy through multi-pass cold rolling and annealing[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2024,911:9. |
| APA | Li, Jiaqi,Li, Xihai,Xu, Tianyi,Yan, Hong,Mao, Yaozong,&Chen, Rongshi.(2024).Regulating the grain refinement and rolling properties of coarse-crystalline Mg-Zn-Gd-Ca-Mn alloy through multi-pass cold rolling and annealing.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,911,9. |
| MLA | Li, Jiaqi,et al."Regulating the grain refinement and rolling properties of coarse-crystalline Mg-Zn-Gd-Ca-Mn alloy through multi-pass cold rolling and annealing".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 911(2024):9. |
入库方式： OAI收割
来源：金属研究所
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