ZT基轻质镁合金材料显微硬度测试及规律分析  

Microhardness Test and Law Analysis of ZT Base Light Magnesium Alloy Materials

作　　者：许东光 孙浩浩 仲志国[1,2] 马春华 Xu Dong Guang;Sun Haohao;Zhong Zhiguo;Ma Chunhua(School of Intelligent Manufacturing and Electrical Engineering,Nanyang Normal University,Nanyang 473061,Henan,China;Henan RareGearth Alloy Material Engineering and Engineering Research Center,Nanyang 473061,Henan,China)

机构地区：[1]南阳师范学院智能制造与电气工程学院,河南南阳473061 [2]河南省稀土合金材料工程技术研究中心,河南南阳473061

出　　处：《绿色科技》2024年第2期227-232,共6页Journal of Green Science and Technology

基　　金：河南科技厅科技攻关项目(编号:212102210437);南阳市2022年基础与前沿技术研究计划项目(编号:JCQY003);2023年度南阳师范学院理工科校级STP项目(编号:2023STP004)。

摘　　要：以Mg-6Zn-3Sn-xCa,x=(0、0.3、0.6、1.0,1.5)合金为研究对象,制作出5组试样后进行金相处理。用HXS-1000AY数字式显微硬度仪进行维氏硬度测试,用HD-AP硬度进行显微组织图像和硬度数据的收集。Ca含量的镁合金为0%、0.3%、0.6%时硬度较为稳定,当Ca含随着Ca含量从0%到达1.0%,镁合金硬度提高47.35%,硬度提升到65HV以上,之后硬度值会有所下降。当Ca含量从0%到1.5%时,通过显微组织观察合金中的第二相Mg_(2)Ca大量析出细化了结晶组织提升镁合金硬度。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 hardness.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.

关 键 词：Mg-6Zn-3Sn-xCa合金 金相制备 显微组织 硬度测试分析 

分 类 号：TG146[一般工业技术—材料科学与工程]