Microhardness Test and Law Analysis of ZT Base Light Magnesium Alloy Materials
In this paper,Mg-6Zn-3Xn-xCa(0,0.3,0.6,1.0,1.5)alloy was taken as the research object,and five groups of samples were fabricated and then metallographic treated.Vickers hardness was measured by HXS-1000AY digital microhardness tester,and microstructure images and hardness data were collected by HD-AP hard-ness.The hardness of magnesium alloy with 0％,0.3％and 0.6％Ca content is relatively stable.When Ca content increases from 0％to 1.0％,thehardness of magnesium alloy increases by 47.35％to over 65HV,and then the hardness value decreases.When the content of Ca is from 0％to 1.5％,the second phase Mg2Ca in the alloy is precipitated to refine the crystal structure and improve the hardness of magnesium alloy.
Mg-6Zn-3Sn-xCa alloyMetallographic preparationMicrostructureHardness test and Analysis
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