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《THE CHINESE JOURNAL OF NONFERROUS METALS》 1999-01
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EFFECTS OF Sn ADDITION ON MICROSTRUCTURE AND MECHANICAL PROPERTIES OF MAGNESIUM ALLOYS

Sun Yangshan, Wen Kunzhong and Yuan Guangyin Department of Materials Science and Engineering, Southeast University, Nanjing 210096, P. R. China  
Effects of Sn addition on the microstructure and mechanical properties of magnesium alloys were studied. Results showed that the Sn addition to magnesium modifies the microstructure of magnesium ingot and causes the formation of Mg 2Sn precipitates with C1 cubic structure. The strength of Mg Sn alloy has increased at both ambient and elevated temperatures due to the high micro hardness and melting point as well as the high thermal stability of the precipitates. In the ternary alloy of Mg 9Al 0.8Zn small amount addition of Sn results in significant improvement of heat resistance. However, the excessive Sn addition to Mg 9Al 0.8Zn leads to the decrease of the strength at elevated temperature.
【CateGory Index】: TG146.22
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