Transactions of Materials and Heat Treatment

Title：Effect of Sn content on the structure and property of Mg alloy

Authors： Ma Changxuan

Unit： Yantai Engineering and Technology College

KeyWords： Mg-4%Zn-5%Al alloy microhardness tensile strength eutectic phase

ClassificationCode：TG156.3

year,vol(issue):pagenumber：2014,39(9):116-118

Abstract：

For the Mg-4%Zn-5%Al alloy, the effects of varying Sn contents on the phase, microstructure and tensile property of the Mg alloy were studied. XRD was used to measure phase of samples and to test tensile strength of samples with different Sn contents. The results show that the addition of Sn forms eutectic at the grain boundary in the Mg alloy. With the increase of Sn contents, tensile strength and elongation of the alloy first increase and then decrease. When Sn content is 1.0%, the tensile strength of Mg alloy reaches the maximum of 226.5 MPa, which is higher than 189.2 MPa when the Mg alloy is without Sn，and the corresponding elongation is 9.1%. Increasing Sn content further, the tensile strength and elongation of Mg alloy will decrease.

Funds：

2012年度山东省高等学校教学改革项目

麻常选（1968-），男，硕士，副教授

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