| Effects of RE on the Microstructure of Mg-8Zn-4Al Magnesium Alloys |
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| 作者姓名： | 王迎新 关绍康 曾小勤 丁文江 |
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| 作者单位： | Light Alloys Net Forming National Eng. Research Center，Shanghai Jiaotong U niv.，Shanghai 200030，China，School of Materials Sci. Eng.，Zhengzhou Univ.，Zhengzh ou 450002，Light Alloys Net Forming National Eng. Research Center，Shanghai Jiaotong U niv.，Shanghai 200030，China，Light Alloys Net Forming National Eng. Research Center，Shanghai Jiaotong U niv.，Shanghai 200030，China |
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| 摘 要： | IntroductionMagnesium alloys are called green-engineeringmaterial with great development potential becauseof its low density, high specific strength and stiff-ness, superior damping capacity, good electromag-netic shielding characteristics and good machinabil-ity1]. However, the number of commercially avail-able magnesium alloys is still limited especially forapplication at elevated temperatures. The applica-tions of most common magnesium alloys such asAZ91 and AM60 with outstanding mechani…
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Effects of RE on the Microstructure of Mg-8Zn-4Al Magnesium Alloys |
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| WANG Ying-xin,GUAN Shao-kang,ZENG Xiao-qin,DING Wen-jiang.Effects of RE on the Microstructure of Mg-8Zn-4Al Magnesium Alloys[J].Journal of Shanghai Jiaotong university,2005,10(3). |
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| Authors: | WANG Ying-xin GUAN Shao-kang ZENG Xiao-qin DING Wen-jiang |
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| Abstract: | The effects of RE on the microstrcture of as-cast Mg-8Zn-4Al magnesium alloys were investigated. The results show that the solidification range of Mg-8Zn-4Al-xRE alloys increases with RE additions. A binary eutectic reaction can arise and produce a new phase (Mg3Al4Zn2RE) and the temperature of phase transformation point of the new phase is 412.85C. In Mg-8Zn-4Al-1.5RE alloy, a small amount of Mg3Al4Zn2RE phase and ε phases are found besides α(Mg),ψ and τ phases. Also microstructures of Mg-8Zn-4Al alloys can be refined by addition of 1.5 % RE obviously. |
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| Keywords: | Mg-8Zn-4Al magnesium alloy rate earth microstructure |
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