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| Effect of Solution Treatment on the Microstructure and Mechanical Properties of Sand-Cast Mg-9Gd-4Y-0.5Zr Alloy | |
| 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. | |
| 2018-02-01 | |
| Source Publication | ACTA METALLURGICA SINICA-ENGLISH LETTERS
 |
| ISSN | 1006-7191 |
| Volume | 31Issue:2Pages:189-198 |
| Abstract | 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. |
| description.department | [li, jing-li ; wu, di ; chen, rong-shi] chinese acad sci, inst met res, grp magnesium alloys & their applicat, shenyang 110016, liaoning, peoples r china ; [li, jing-li] univ sci & technol china, sch mat sci & engn, hefei 230026, anhui, peoples r china ; [zhang, na ; wang, xiao-xuan] avic shenyang liming aeroengine grp corp, shenyang 110043, liaoning, peoples r china |
| Keyword | Zr Alloys Mg Gd Temperature |
| Subject Area | Metallurgy & Metallurgical Engineering |
| Funding Organization | 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] |
| Indexed By | SCI |
| Language | 英语 |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/79529 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Wu, D; Chen, RS (reprint author), Chinese Acad Sci, Inst Met Res, Grp Magnesium Alloys & Their Applicat, Shenyang 110016, Liaoning, Peoples R China. |
| Recommended Citation 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. |
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