Effect of Solution Treatment on the Microstructure and Mechanical Properties of Sand-Cast Mg-9Gd-4Y-0.5Zr Alloy
文献类型：期刊论文
| 作者 | Li, JL; Zhang, N; Wang, XX; Wu, D; Chen, RS; Chen, RS (reprint author), Chinese Acad Sci, Inst Met Res, Grp Magnesium Alloys & Their Applicat, Shenyang 110016, Liaoning, Peoples R China. |
| 刊名 | ACTA METALLURGICA SINICA-ENGLISH LETTERS
 |
| 出版日期 | 2018-02-01 |
| 卷号 | 31期号:2页码:189-198 |
| 关键词 | Zr Alloys Mg Gd Temperature |
| ISSN号 | 1006-7191 |
| 英文摘要 | Sand-cast Mg-9Gd-4Y-0.5Zr (wt%) alloy was solution- treated at 500-565 degrees C in the time range of 0.5-30 h in air or vacuum to investigate its microstructure evolution and mechanical properties. The results showed that solution treatment temperature had a significant influence on the dissolving rate of eutectic phase and grain growth. Taken both of them into consideration, 510-520 degrees C was considered to be the optimum solution treatment temperature range for this alloy. It should be noted that the trace (0.4-0.9 vol%) and insoluble cuboid-shaped phase precipitated during solution treatment was identified to be YH2, of which the hydrogen was thought to come from both the melting and solution heating process. In addition, the 3D morphology and dissolving process of Mg-24(Gd, Y)(5) eutectic phases in the as-cast alloy were also discussed via in-situ observation under X-ray tomography.; Sand-cast Mg-9Gd-4Y-0.5Zr (wt%) alloy was solution- treated at 500-565 degrees C in the time range of 0.5-30 h in air or vacuum to investigate its microstructure evolution and mechanical properties. The results showed that solution treatment temperature had a significant influence on the dissolving rate of eutectic phase and grain growth. Taken both of them into consideration, 510-520 degrees C was considered to be the optimum solution treatment temperature range for this alloy. It should be noted that the trace (0.4-0.9 vol%) and insoluble cuboid-shaped phase precipitated during solution treatment was identified to be YH2, of which the hydrogen was thought to come from both the melting and solution heating process. In addition, the 3D morphology and dissolving process of Mg-24(Gd, Y)(5) eutectic phases in the as-cast alloy were also discussed via in-situ observation under X-ray tomography. |
| 学科主题 | Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| 资助机构 | National Natural Science Foundation of China [51301173, 51531002]; National Basic Research Program of China (973 Program) [2013CB632202]; National Key Research and Development Program of China [2016YFB0301104] |
| 公开日期 | 2018-06-05 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/79529]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Wu, D; Chen, RS (reprint author), Chinese Acad Sci, Inst Met Res, Grp Magnesium Alloys & Their Applicat, Shenyang 110016, Liaoning, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Li, JL,Zhang, N,Wang, XX,et al. Effect of Solution Treatment on the Microstructure and Mechanical Properties of Sand-Cast Mg-9Gd-4Y-0.5Zr Alloy[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2018,31(2):189-198. |
| APA | Li, JL,Zhang, N,Wang, XX,Wu, D,Chen, RS,&Chen, RS .(2018).Effect of Solution Treatment on the Microstructure and Mechanical Properties of Sand-Cast Mg-9Gd-4Y-0.5Zr Alloy.ACTA METALLURGICA SINICA-ENGLISH LETTERS,31(2),189-198. |
| MLA | Li, JL,et al."Effect of Solution Treatment on the Microstructure and Mechanical Properties of Sand-Cast Mg-9Gd-4Y-0.5Zr Alloy".ACTA METALLURGICA SINICA-ENGLISH LETTERS 31.2(2018):189-198. |
入库方式： OAI收割
来源：金属研究所
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