| Microstructure characterization and mechanical properties of Mg-9Li-5Al-1Zn-0.6RE alloy |
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| 引用本文： | 巫瑞智 张密林 王涛. Microstructure characterization and mechanical properties of Mg-9Li-5Al-1Zn-0.6RE alloy[J]. 中国有色金属学会会刊, 2007, 17(A01): 448-451 |
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| 作者姓名： | 巫瑞智 张密林 王涛 |
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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（002100260739） supported by Harbin Engineering University Fundamental Research Foundation Program; Project（GC06A12） supported by Heilongjian Commission of Science and Technology, China |
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| 摘 要： | Mg-9Li-5Al-1Zn-0.6RE alloy was prepared by vacuum induction heating. The microstructure and phases composition of the alloy were analyzed with optical microscope, scanning electron microscope and X-ray diffractometer. Then the effect of homogenization temperature on microstructure and mechanical properties of the alloy was studied. The hardness of samples under different homogenization temperatures was measured. The results show that, the alloy is composed of a phase, β phase, Mg17Al12 and AlLi. RE added into the alloy is solved in a phase and β phase completely. After homogenization heat treatment, the needle-like a phase disappears. With the increase of homogenization temperature, the shape of a phase is spherical-like first, then vennicular-like, and large block-like finally. The variation of the shape of a phase causes the hardness of sample to change accordingly. The most favorable homogenization temperature for microstructure and mechanical properties is 150 ℃.
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| 关 键 词： | 同质化 镁 锂 合金 微观结构 |
| 收稿时间： | 2007-07-15 |
| 修稿时间： | 2007-09-10 |
Microstructure characterization and mechanical properties of Mg-9Li-5Al-1Zn-0.6RE alloy |
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| WU Rui-zhi, ZHANG Mi-lin, WANG Tao. Microstructure characterization and mechanical properties of Mg-9Li-5Al-1Zn-0.6RE alloy[J]. Transactions of Nonferrous Metals Society of China, 2007, 17(A01): 448-451 |
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| Authors: | WU Rui-zhi ZHANG Mi-lin WANG Tao |
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| Abstract: | |
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| Keywords: | homogenization temperature magnesium-lithium alloy microstructure mechanical properties |
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