| Mechanical properties and microstructures of hot extruded AE42 alloy with addition of zinc |
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| 作者姓名： | 王峰 刘正 陈立佳 于宝义 林立 |
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| 作者单位： | School of Materials Science and Engineering, Shenyang University of Technology, Shenyang 110023, China |
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| 基金项目： | Foundation item： Project （2002AA331120） supported by the National High-Technology Research and Development Program of China |
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| 摘 要： | Mechanical properties and microstructures of AE42 magnesium alloy with addition of Zn and subjected to hot extrusion at 370 ℃ and an extrusion ratio of 8：1 were investigated. The results show that for the AE42 alloy, the addition of Zn can obviously improve its elongation as well as the ultimate tensile and yield strengths below 150 ℃. The addition of Zn can refine the mierostructure of the AE42 alloy, and result in the precipitation of Mg17Al12 and MgZn2 phases. Due to the addition of Zn to the AE42 alloy, the amount of Al11RE3 phase decreases, while the Al11RE3 phase becomes short rod-shaped from acicular and block, and distributes along the grain boundaries, which will have a stronger effect on the tensile properties of the alloy at elevated temperature. In addition, with the presence of MgZn2 precipitates, the sliding of grain boundaries is restrained and the strength of the alloy gets enhanced.
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| 关 键 词： | 镁合金 机械性能 微观结构 有色金属 |
| 收稿时间： | 2006-07-28 |
| 修稿时间： | 2006-09-15 |
Mechanical properties and microstructures of hot extruded AE42 alloy with addition of zinc |
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| WANG Feng, LIU Zheng, CHEN Li-jia, YU Bao-yi, LIN Li.Mechanical properties and microstructures of hot extruded AE42 alloy with addition of zinc[J].Transactions of Nonferrous Metals Society of China,2006,16(A03):1762-1765. |
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| Authors: | WANG Feng LIU Zheng CHEN Li-jia YU Bao-yi LIN Li |
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| Abstract: | |
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| Keywords: | AE42 magnesium alloy zinc extrusion microstructure mechanical property |
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