| Influence of Ce on microstructure and mechanical properties of LA141 alloys |
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| 作者姓名： | 刘滨 张密林 巫瑞智 |
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| 作者单位： | Key Laboratory of Superlight Materials ＆ Surface Technology（Harbin Engineering University）, Ministry of Education, Harbin 150001, China |
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| 基金项目： | Project（2006AA03Z511 ） supported by the National Hi-Tech Research Development Program of China; Project（002100260739） supported by Harbin Engineering University Fundamental Research Funding Project; Project（2006PFXXG006） supported by Harbin Commission of Science and Technology; Project（GC06A12） supported by Heilongjiang Commission of Science and Technology |
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| 摘 要： | LA141-（0-1.2）Ce alloys were prepared with vacuum induction melting method. The effects of Ce addition on the microstructure and mechanical properties of LA 141 alloys were studied. The microstructure and phases 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 Ce has refining effect on the alloys. In the alloys, some Al2Ce compounds exist, which make the A1 content dissolved in a and β phases decrease and the hard brittle Mg17Al12 phase refined. The refining effect improves the mechanical properties of alloys. When Ce content is 0.9%（mass fraction）, the tensile strength reaches 206.8 MPa and the elongation is two times as high as that of LAl41 alloy. Due to the generation of Al2Ce, the content of Al solid soluted in β phase decreases resulting in the decrease of alloy hardness with the addition of Ce.
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| 关 键 词： | 合金 铈 机械性能 谷物 |
| 收稿时间： | 2007-07-15 |
| 修稿时间： | 2007-09-10 |
Influence of Ce on microstructure and mechanical properties of LA141 alloys |
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| LIU Bin, ZHANG Mi-lin, WU Rui-zhi, Ministry of Education, Harbin , China.Influence of Ce on microstructure and mechanical properties of LA141 alloys[J].Transactions of Nonferrous Metals Society of China,2007,17(A01):376-380. |
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| Authors: | LIU Bin ZHANG Mi-lin WU Rui-zhi Ministry of Education Harbin China |
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| Affiliation: | LIU Bin, ZHANG Mi-lin, WU Rui-zhi, Ministry of Education, Harbin 150001, China) |
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| Abstract: | |
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| Keywords: | LAl41 alloy cerium grain refinement mechanical property |
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