Microstructure refinement and high-temperature tensile properties of Mg-12Gd-3Y-0.5Zr alloy after equal channel angular pressing
文献类型：期刊论文
| 作者 | Zhang, N.1; Yang, H. J.2; Shao, X. H.2 |
| 刊名 | PHILOSOPHICAL MAGAZINE LETTERS
 |
| 出版日期 | 2021-10-06 |
| 页码 | 11 |
| ISSN号 | 0950-0839 |
| 关键词 | Magnesium alloy equal channel angular pressing recrystallisation second-phase particles |
| DOI | 10.1080/09500839.2021.1985733 |
| 通讯作者 | Shao, X. H.(xhshao@imr.ac.cn) |
| 英文摘要 | Grain refinement is significant for the mechanical properties of engineering alloys. We achieved a bi-ultrafine microstructure in an Mg-12Gd-3Y-0.5Zr alloy through equal channel angular pressing (ECAP) at 300 degrees C. The ECAP not only refined the matrix grains but also broke the large intermetallic particles into fine secondary particles and then rearranged them at the grain boundaries. These fine particles can suppress the growth of the recrystallised grains, as well as promote nucleation for recrystallisation. After four passes of ECAP, a uniform microstructure with both the matrix grain (similar to 500 nm) and the particle size (similar to 300 nm) in the ultrafine range was obtained. This unique microstructure resulted in a good combination of strength (>300MPa) and elongation to failure (>35%) at 200 degrees C, which sheds new light on refining microstructure to obtain good mechanical performance at elevated temperatures for Mg alloys. |
| 资助项目 | Analytical and Testing Center of Northeastern University, Shenyang, China ; Liaoning Provincial Natural Science Foundation[2019-MS-335] |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering ; Physics |
| 语种 | 英语 |
| 出版者 | TAYLOR & FRANCIS LTD |
| WOS记录号 | WOS:000705402100001 |
| 资助机构 | Analytical and Testing Center of Northeastern University, Shenyang, China ; Liaoning Provincial Natural Science Foundation |
| 源URL | [http://ir.imr.ac.cn/handle/321006/166551]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Shao, X. H. |
| 作者单位 | 1.Northeastern Univ, Analyt & Testing Ctr Northeastern Univ, Shenyang, Peoples R China 2.Chinese Acad Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, N.,Yang, H. J.,Shao, X. H.. Microstructure refinement and high-temperature tensile properties of Mg-12Gd-3Y-0.5Zr alloy after equal channel angular pressing[J]. PHILOSOPHICAL MAGAZINE LETTERS,2021:11. |
| APA | Zhang, N.,Yang, H. J.,&Shao, X. H..(2021).Microstructure refinement and high-temperature tensile properties of Mg-12Gd-3Y-0.5Zr alloy after equal channel angular pressing.PHILOSOPHICAL MAGAZINE LETTERS,11. |
| MLA | Zhang, N.,et al."Microstructure refinement and high-temperature tensile properties of Mg-12Gd-3Y-0.5Zr alloy after equal channel angular pressing".PHILOSOPHICAL MAGAZINE LETTERS (2021):11. |
入库方式： OAI收割
来源：金属研究所
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