| Microstructure and mechanical properties of Mg-xLi-3Al-1 Ce alloys |
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| 引用本文： | 张密林 巫瑞智 王涛 刘滨 牛中毅. Microstructure and mechanical properties of Mg-xLi-3Al-1 Ce alloys[J]. 中国有色金属学会会刊, 2007, 17(A01): 381-384 |
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| 作者姓名： | 张密林 巫瑞智 王涛 刘滨 牛中毅 |
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| 作者单位： | Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, Harbin Engineering University, Harbin 150001, China |
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| 基金项目： | Project（2006AA03Z511） supported by the Hi-tech Research and Development Program of China; Project（2006PFXXG006） supported by Harbin Commission of Science and Technology; Project（GC06A12） supported by Heilongjian Commission of Science and Technology |
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| 摘 要： | Several Mg-xLi-3Al-lCe alloys were prepared by vacuum induction heating. These alloys are Mg-5Li-3Al-lCe, Mg-8Li-3Al-lCe and Mg-14Li-3Al-1C e, respectively. The microstructure and phase composition of these alloys were analyzed by optical microscopy, scanning electron microscopy, energy dispersive X-ray spectroscopy and X-ray diffractometry. The mechanical properties of these alloys were measured with tensile tester. The results show that, Mg-5Li-3Al-1Ce has a single phase （α） structure, Mg-8Li-3Al-lCe has a double phases （α＋β） structure, Mg-14Li-3Al-1Ce has a single phase （β） structure. And some compounds distribute in the matrix. After being rolled, the grain size of all the alloys is refined. Under the condition of the same content of other alloying elements, the mechanical properties of Mg-5Li-3Al-1Ce are relatively high. With increasing Li content, the strength of both as-cast and as-rolled alloy decrease. For the as-cast alloys, with increasing Li content, the elongation increases. While for the as-rolled alloys, with increasing Li content, the elongation decreases. Ce has refining effect on these alloys.
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| 关 键 词： | 镁 锂 合金 微观结构 机械性能 |
| 收稿时间： | 2007-07-15 |
| 修稿时间： | 2007-09-10 |
Microstructure and mechanical properties of Mg-xLi-3Al-1 Ce alloys |
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| ZHANG Mi-lin, WU Rui-zhi, WANG Tao, LIU Bin, NIU Zhong-yi. Microstructure and mechanical properties of Mg-xLi-3Al-1 Ce alloys[J]. Transactions of Nonferrous Metals Society of China, 2007, 17(A01): 381-384 |
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| Authors: | ZHANG Mi-lin WU Rui-zhi WANG Tao LIU Bin NIU Zhong-yi |
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| Abstract: | |
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| Keywords: | Mg-Li alloy microstructure mechanical properties |
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