Effects of Sn,Ca Addition on Microstructure and Properties of Squeezing Casting Mg-Sn-Ca Alloy
The effects of Sn and Ca content on microstructure and mechanical properties of Mg-Sn alloy by squeezing casting were investigated.The results indicate that with the increase of Sn content,the grain of Mg-Sn alloy is refined,and the amounts of Mg2Sn phase are gradually increased,so the mechanical properties of the alloy are improved,and the performance reaches desirable when the Sn content is 5%.When Ca content is below 1%,with the increase of Ca content,the grains of Mg-Sn-Ca alloy are significantly refined and Ca-Mg-Sn phase can be generated,so the mechanical properties of the alloy are gradually improved.When the Ca content is more than 1%,the second phase is coarsened and agglomerated in the alloy,resulting in a decrease in properties of the alloy.
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万方数据
维普
