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Effects of zirconium addition on as-cast microstructure and mechanical properties of Mg–3Sn–2Ca magnesium alloy
Research highlights ► Adding 0.41–1.18wt.%Zr can refine the grains of Mg–3Sn–2Ca alloy. ► Adding 0.41–1.18wt.%Zr can modify the primary CaMgSn phase of Mg–3Sn–2Ca alloy. ► Adding 0.41–0.76wt.%Zr can improve the mechanical properties of Mg-3Sn-2Ca alloy.
Abstract At present, the mechanical properties of the Mg–3Sn–2Ca magnesium alloy are not satisfying and further enhance needs to be considered via further alloying/microalloying additions. The effects of Zr addition on the as-cast microstructure and mechanical properties of the alloy were investigated by using optical and electron microscopies, differential scanning calorimetry (DSC) analysis, and tensile and creep tests. The results indicate that adding 0.41, 0.76 or 1.18wt.% Zr can refine the grains of the alloy, and the primary CaMgSn phases in the Zr-containing alloys are changed from coarse needle-like net to relatively fine short block and/or particle-like shapes. As a result, the tensile and/or creep properties of the Zr-containing alloys are improved. Among the Zr-containing alloys, the alloy with the addition of 0.76wt.% Zr exhibits the relatively optimum mechanical properties.
Effects of zirconium addition on as-cast microstructure and mechanical properties of Mg–3Sn–2Ca magnesium alloy
Research highlights ► Adding 0.41–1.18wt.%Zr can refine the grains of Mg–3Sn–2Ca alloy. ► Adding 0.41–1.18wt.%Zr can modify the primary CaMgSn phase of Mg–3Sn–2Ca alloy. ► Adding 0.41–0.76wt.%Zr can improve the mechanical properties of Mg-3Sn-2Ca alloy.
Abstract At present, the mechanical properties of the Mg–3Sn–2Ca magnesium alloy are not satisfying and further enhance needs to be considered via further alloying/microalloying additions. The effects of Zr addition on the as-cast microstructure and mechanical properties of the alloy were investigated by using optical and electron microscopies, differential scanning calorimetry (DSC) analysis, and tensile and creep tests. The results indicate that adding 0.41, 0.76 or 1.18wt.% Zr can refine the grains of the alloy, and the primary CaMgSn phases in the Zr-containing alloys are changed from coarse needle-like net to relatively fine short block and/or particle-like shapes. As a result, the tensile and/or creep properties of the Zr-containing alloys are improved. Among the Zr-containing alloys, the alloy with the addition of 0.76wt.% Zr exhibits the relatively optimum mechanical properties.
Effects of zirconium addition on as-cast microstructure and mechanical properties of Mg–3Sn–2Ca magnesium alloy
Yang, Mingbo (Autor:in) / Liang, Xiaofeng (Autor:in) / Yi, Zhu (Autor:in) / Pan, Fusheng (Autor:in)
28.11.2010
7 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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