Effects of Al on Microstructure and Properties of In-Situ Synthesized Mg<sub>3</sub>Sb<sub>2</sub>/Mg Composites

Chi Yuanyuan; Long Wei; Zhou Xiaoping

doi:10.15980/j.tzzz.2019.02.018

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Effects of Al on Microstructure and Properties of In-Situ Synthesized Mg₃Sb₂/Mg Composites
Vol. 39, Issue 2, Pages: 181-184(2019)
Published： 2019 ，
DOI： 10.15980/j.tzzz.2019.02.018

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[1]池园园,龙威,周小平.Al对原位合成Mg_3Sb_2/Mg复合材料组织性能的影响[J].特种铸造及有色合金,2019,39(02):181-184.

Chi Yuanyuan, Long Wei, Zhou Xiaoping. Effects of Al on Microstructure and Properties of In-Situ Synthesized Mg₃Sb₂/Mg Composites. [J]. Special Casting & Nonferrous Alloys 39(2):181-184(2019)
[1]池园园,龙威,周小平.Al对原位合成Mg_3Sb_2/Mg复合材料组织性能的影响[J].特种铸造及有色合金,2019,39(02):181-184. DOI： 10.15980/j.tzzz.2019.02.018.

Chi Yuanyuan, Long Wei, Zhou Xiaoping. Effects of Al on Microstructure and Properties of In-Situ Synthesized Mg₃Sb₂/Mg Composites. [J]. Special Casting & Nonferrous Alloys 39(2):181-184(2019) DOI： 10.15980/j.tzzz.2019.02.018.

摘要

采用原位反应法制备不同体积分数的Mg

/Mg、（Mg

+AlSb）/Mg复合材料。使用XRD、SEM分析了复合材料的物相和形貌;利用显微硬度计和CTM万能试验机测试了其硬度以及力学性能;使用电化学工作站测试了复合材料在3.5%的NaCl溶液中的电化学腐蚀性能。结果表明

原位反应可制备出不同体积分数的Mg

/Mg、（Mg

+AlSb）/Mg复合材料;Mg

/Mg复合材料中添加Al

其硬度、屈服强度和抗拉强度均显著提高;Mg-15.4Sb-5Al复合材料的腐蚀电位为-1.38V

耐腐蚀性能最好

（Mg

+AlSb）/Mg复合材料的耐腐蚀性均优于Mg

/Mg复合材料。

Abstract

/Mg and（Mg

+AlSb）/Mg composites with a varied volume fraction of Mg

and Mg and（Mg

+AlSb）were prepared by in-situ reaction.The phase and morphology of the composites were analyzed by XRD and SEM.The hardness and mechanical properties of the composites were tested by microhardness tester and CTM universal testing machine.The electrochemical corrosion performance of the composites in 3.5% NaCl solution was measured by electrochemical workstation.The results show that the in-situ reaction method can fabricate Mg

/Mg and（Mg

+AlSb）/Mg composites with different volume fractions.In addition

the hardness

yield strength and tensile strength of Mg

/Mg composites can be improved significantly with the addition of Al.The corrosion potential of Mg-15.4 Sb-5 Al composite is-1.38 V

presenting the desirable corrosion resistance.The corrosion resistance of（Mg

+AlSb）/Mg composites is superior to that of Mg

/Mg composites.