Effects of Sc and Mn on microstructures and mechanical properties of Mg-Gd alloy
Two alloys of Mg-12.4Gd and Mg-12.5Gd-0.8Sc-1.4Mn were prepared. Hot extrusion and T5 heat treatment were conducted, and then the mechanical properties of the two alloys were tested at room and high temperatures. The effects of Sc, Mn on the microstructures of Mg-12.4Gd were investigated by optical...
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| Published in | Transactions of Nonferrous Metals Society of China Vol. 17; no. A01; pp. 428 - 431 |
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| Main Author | |
| Format | Journal Article |
| Language | English |
| Published |
01.11.2007
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1003-6326 |
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| Abstract | Two alloys of Mg-12.4Gd and Mg-12.5Gd-0.8Sc-1.4Mn were prepared. Hot extrusion and T5 heat treatment were conducted, and then the mechanical properties of the two alloys were tested at room and high temperatures. The effects of Sc, Mn on the microstructures of Mg-12.4Gd were investigated by optical microscopy, scanning electron microscopy and transmission electron microscopy. The results demonstrate that after hot-extrusion the alloying with Sc, Mn can efficaciously refine the grains of Mg-12.4Gd alloy; and increase the elongation at room and high temperatures after T5 heat treatment. But the strength at high temperature is not obviously improved. |
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| AbstractList | Two alloys of Mg-12.4Gd and Mg-12.5Gd-0.8Sc-1.4Mn were prepared. Hot extrusion and T5 heat treatment were conducted, and then the mechanical properties of the two alloys were tested at room and high temperatures. The effects of Sc, Mn on the microstructures of Mg-12.4Gd were investigated by optical microscopy, scanning electron microscopy and transmission electron microscopy. The results demonstrate that after hot-extrusion the alloying with Sc, Mn can efficaciously refine the grains of Mg-12.4Gd alloy; and increase the elongation at room and high temperatures after T5 heat treatment. But the strength at high temperature is not obviously improved. |
| Author | 余红燕 黄进峰 李永兵 崔华 何建平 张济山 |
| AuthorAffiliation | State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China |
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| Notes | hot-extrusion 43-1239/TG microstructures Mg-Gd-Sc-Mn alloy TG146.2 Mg-Gd-Sc-Mn alloy; hot-extrusion; microstructures; mechanical properties mechanical properties |
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| Snippet | Two alloys of Mg-12.4Gd and Mg-12.5Gd-0.8Sc-1.4Mn were prepared. Hot extrusion and T5 heat treatment were conducted, and then the mechanical properties of the... |
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| Title | Effects of Sc and Mn on microstructures and mechanical properties of Mg-Gd alloy |
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