Effects of ageing treatment on microstructures and properties of Mg-Gd-Y-Zr alloys with and without Zn additions
文献类型：期刊论文
| 作者 | X. B. Liu ; R. S. Chen ; E. H. Han |
| 刊名 | Journal of Alloys and Compounds
 |
| 出版日期 | 2008 |
| 卷号 | 465期号:1-2页码:232-238 |
| 关键词 | Mg-Gd-Y-Zr alloy Precipitation Ageing hardening Secondary ageing Mechanical properties precipitation evolution strength |
| ISSN号 | 0925-8388 |
| 中文摘要 | Mg-Gd-10-3Y-0.5Zr alloys with and without 1% Zn additions have been investigated using optical microscopy, scanning electron microscope and X-ray diffraction. The microstructures, ageing hardening behaviors and mechanical properties of the two alloys are compared. The extruded-T5 specimens exhibit remarkable age hardening responses during ageing from 200 to 250 degrees C. The highest peak hardness and strength of the two alloys are obtained when they are aged at 200 degrees C. Addition of 1% Zn to Mg-10Gd-3Y-0.5Zr alloy results in the greater magnitude ageing effect and better mechanical properties as well as better heat resistance. Furthermore, secondary ageing is carried out at 200 degrees C following preliminary ageing at 250 degrees C for both Mg-10Gd-3Y-0.5Zr and Mg-10Gd-3Y-1Zn-0.5Zr alloys. The ultimate tensile strength values after secondary ageing are slightly lower compared with the highest strength of the two alloys, but secondary ageing offers a better combination of high strength and ductility. (C) 2007 Elsevier B.V. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/32967]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | X. B. Liu,R. S. Chen,E. H. Han. Effects of ageing treatment on microstructures and properties of Mg-Gd-Y-Zr alloys with and without Zn additions[J]. Journal of Alloys and Compounds,2008,465(1-2):232-238. |
| APA | X. B. Liu,R. S. Chen,&E. H. Han.(2008).Effects of ageing treatment on microstructures and properties of Mg-Gd-Y-Zr alloys with and without Zn additions.Journal of Alloys and Compounds,465(1-2),232-238. |
| MLA | X. B. Liu,et al."Effects of ageing treatment on microstructures and properties of Mg-Gd-Y-Zr alloys with and without Zn additions".Journal of Alloys and Compounds 465.1-2(2008):232-238. |
入库方式： OAI收割
来源：金属研究所
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