陈国清

个人信息Personal Information

教授

博士生导师

硕士生导师

主要任职:材料科学与工程学院副院长

性别:男

毕业院校:哈尔滨工业大学

学位:博士

所在单位:材料科学与工程学院

办公地点:铸造中心208

联系方式:0411-84707970

电子邮箱:gqchen@dlut.edu.cn

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Microstructures and mechanical properties of Mg2Sn-nanophase reinforced Mg-Mg2Sn composite

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论文类型:期刊论文

发表时间:2017-01-27

发表刊物:MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING

收录刊物:SCIE、EI、Scopus

卷号:684

页面范围:229-232

ISSN号:0921-5093

关键字:Composite materials; Ball milling; Sintering; Microstructure; Mechanical properties

摘要:A kind of new Mg-Mg2Sn composite was developed successfully. The Mg2Sn reinforcement was synthesized effectively by milling micro-sized Mg and nano-sized Sn powders. The effect of milling on formation of Mg2Sn phase from elements powders was investigated. The microstructures and mechanical properties of the composite were presented. The results showed that, high surface activation of raw nano-sized Sn powder would be greatly beneficial to accelerate transformation efficiency of Mg2Sn nanophase from Mg Sn mixture. After sintering, Mg2Sn cluster consisting of Mg2Sn nanophase was uniformly distributed in the matrix. The Mg Mg2Sn composite exhibited an appreciable benefit in terms of hardness and compressive strength, while ductility remained quite high.