| 变形Mg-Li-Al-Zn合金的组织与性能 |
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| 引用本文： | 陈斌,冯林平,钟皓,周铁涛,刘培英.变形Mg-Li-Al-Zn合金的组织与性能[J].北京航空航天大学学报,2004,30(10):976-979. |
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| 作者姓名： | 陈斌 冯林平 钟皓 周铁涛 刘培英 |
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| 作者单位： | 1.北京航空航天大学 材料科学与工程学院 北京 100083 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 根据Mg-Li二元合金相图及Al,Zn元素在合金中的作用,设计了一种新的β基变形镁锂合金(Mg-Li-Al-Zn),用光学显微镜和X射线衍射法对合金锻造、轧制和轧制退火态的组织及合金相进行了分析,结果表明该合金轧制退火态具有比较理想的组织.不同状态合金的拉伸性能表明,轧制退火态下合金具有最高的强度和屈强比,并具有较好的塑性.
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| 关 键 词： | 显微组织 热处理 变形镁锂合金 合金相 |
| 文章编号： | 1001-5965(2004)10-0976-04 |
| 收稿时间： | 2004-04-28 |
| 修稿时间： | 2004年4月28日 |
Microstructures and properties of a Mg-Li-Al-Zn wrought alloy |
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| Chen Bin,Feng Linping,Zhong Hao,Zhou Tietao,Liu Peiying.Microstructures and properties of a Mg-Li-Al-Zn wrought alloy[J].Journal of Beijing University of Aeronautics and Astronautics,2004,30(10):976-979. |
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| Authors: | Chen Bin Feng Linping Zhong Hao Zhou Tietao Liu Peiying |
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| Institution: | 1.School of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China2. Department of Missile, Navy Submarine Academy, Qingdao 266071,China |
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| Abstract: | A novel β base Mg-Li-Al-Zn wrought alloy was designed according as the Mg-Li binary phase diagram and effect of Al, Zn on the alloys. The microstructure and alloy phases changes of the alloy on the states of casting, forging, rolling and rolling-annealing were systematically investigated by optical microscope and X-Ray. The results show that the microstructure of as rolling-annealing is satisfying. The results from tensile test show that the alloy at the state after rolling and consequent heating at 220℃ with holding time of 2 hour has either the highest fracture strength or the highest ratio of the yield strength to fracture strength, meanwhile the plasticity is quite acceptable. |
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| Keywords: | micro structure heat treatment Mg-Li wrought alloy alloy phases |
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