| Microstructure and properties of AZ31 magnesium alloy with rapid solidification |
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| 作者姓名： | 赵红亮 关绍康 郑飞燕 李庆奎 王利国 |
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| 作者单位： | CollegeofMaterialsEngineering,ZhengzhouUniversity,Zhengzh0u450002,China |
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| 基金项目： | 国家自然科学基金，the Key Project of Eduction Ministry of China |
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| 摘 要： | Rapidly solidified (RS) AZ31 magnesium alloy ribbons were made using melt spinning technique. The results show that its microhardness increases with the wheel speed, and after heat treatment, the microhardness of the ribbons produced at 1 600 r/min also increases. Rapid solidification leads to reduction of grain size. When the wheel speed reaches 1 600 r/min, no Mg17 Al12 phase precipitates, while heat treatment at 200℃ leads to precipitation of Mg17 Al12 phase. Al-Mn intermetallic compounds with size no larger than 10 nm appear in as-spun ribbons. The corrosion potential of the as-cast ingots is lower than that of the as-spun ribbons.
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| 关 键 词： | 快速凝固 镁合金 微观结构 合金性质 |
Microstructure and properties of AZ31 magnesium alloy with rapid solidification |
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| ZHAO Hong-liang,GUAN Sho-kang,ZHENG Fei-yan,LI Qing-kui,WANG Li-guo.Microstructure and properties of AZ31 magnesium alloy with rapid solidification[J].Transactions of Nonferrous Metals Society of China,2005,15(1):144-148. |
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| Authors: | ZHAO Hong-liang GUAN Sho-kang ZHENG Fei-yan LI Qing-kui WANG Li-guo |
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| Abstract: | Rapidly solidified(RS)AZ31 magnesium alloy ribbons were made using melt spinning technique.The results show that its microhardness increases with the wheel speed,and after heat treatment,the microhardness of the ribbons produced at 1600 r/min also increases.Rapid solidification leads to reduction of grain size.When the wheel speed reaches 1600 r/min,no Mg17 Al12 phase precipitates,while heat treatment at 200 ℃ leads to precipitation of Mg17 Al12 phase.Al-Mn intermetallic compounds with size no larger than 10 nm appear in as-spun ribbons.The corrosion potential of the as-cast ingots is lower than that of the as-spun ribbons. |
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| Keywords: | rapid solidification magnesium alloy microstructure properties |
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