Effect of Sb on Microstructure and Mechanical Properties of Mg-5Y-3Sm-0.8Ca Alloy AITranslate

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Chinese Library Classification Number:TG146.22[金属学及工艺—金属材料]

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The effect was investigated of 0.5% Sb addition on microstructure and mechanical properties of Mg-5Y-3Sm-0.8Ca alloy by microstructure analysis and tensile tests.The results show that high meltingpoint Mg3Sb2 phase is formed and the grain size is refined in the alloy with 0.5% Sb.The room/high-temperature mechanical properties are improved of Mg-5Y-3Sm-0.8Ca-0.5 Sb alloy,with room-temperature tensile strength of 266 MPa and 300 ℃tensile strength of 208 MPa.Therefore,Mg-5Y-3Sm-0.8Ca-0.5Sb alloy has superior tensile stability to the commercial heat-resistant magnesium alloy WE43.