Novel transformation mechanism among precipitates in Mg-Gd alloys
文献类型：期刊论文
| 作者 | Niu, Xue-Shan1,2; Lv, Ming1,2; Feng, Yan-Peng4,6; Wang, Yu-Jia1,2; Shao, Xiao-Hong2,3; Ma, Xiu-Liang4,5,6 |
| 刊名 | ACTA MATERIALIA
 |
| 出版日期 | 2025-03-01 |
| 卷号 | 286页码:10 |
| 关键词 | Mg alloy First principles Phase transformation HAADF-STEM |
| ISSN号 | 1359-6454 |
| DOI | 10.1016/j.actamat.2025.120746 |
| 通讯作者 | Wang, Yu-Jia(yjwang@imr.ac.cn) ; Shao, Xiao-Hong(xhshao@imr.ac.cn) |
| 英文摘要 | The metastable /3', /3'F and /31 phases are the principal strengthening precipitates in magnesium-rare earth alloys. However, the mechanisms governing the transformation between these phases remain unclear. In this study, we used high-angle annular dark field-scanning transmission electron microscopy to characterize /3', /3 ' F and /31 phases in a Mg-10Gd-3Y-1Zn-0.5Zr alloy, and explored the transformation mechanisms using first-principles calculations. The experimental observations showed that the /3'F phase act as an intermediate bridging phase between the /3' phase and /31 phase. By comparing the energy barriers calculated by the climbing image nudged elastic band method, we found that the transition from /3' to /3'F is more likely to proceed via a stepwise shear transformation. These results provide a deeper understanding of the precipitate evolutions in Mg alloys. |
| 资助项目 | National Natural Science Foundation of China[52171021] ; Youth Innovation Promotion Association CAS[2021187] ; Liaoning Provincial Natural Science Foundation[2023-MS-018] |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001403306700001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; Liaoning Provincial Natural Science Foundation |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Wang, Yu-Jia; Shao, Xiao-Hong |
| 作者单位 | 1.Univ Sci & Technol China, Sch Mat Sci & Engn, Wenhua Rd 72, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Wenhua Rd 72, Shenyang 110016, Peoples R China 3.Suzhou Lab, Suzhou 215123, Peoples R China 4.Songshan Lake Mat Lab, Dongguan 523808, Guangdong, Peoples R China 5.Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China 6.Quantum Sci Ctr Guangdong HongKong Macau Greater B, Shenzhen 518000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Niu, Xue-Shan,Lv, Ming,Feng, Yan-Peng,et al. Novel transformation mechanism among precipitates in Mg-Gd alloys[J]. ACTA MATERIALIA,2025,286:10. |
| APA | Niu, Xue-Shan,Lv, Ming,Feng, Yan-Peng,Wang, Yu-Jia,Shao, Xiao-Hong,&Ma, Xiu-Liang.(2025).Novel transformation mechanism among precipitates in Mg-Gd alloys.ACTA MATERIALIA,286,10. |
| MLA | Niu, Xue-Shan,et al."Novel transformation mechanism among precipitates in Mg-Gd alloys".ACTA MATERIALIA 286(2025):10. |
入库方式： OAI收割
来源：金属研究所
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