Microstructure and room temperature tensile properties of 1μm-SiCp/AZ31B magnesium matrix composite

查看全文 作　　者：[1]M.J.Shen;[2]X.J.Wang;[3]M.F.Zhang;[1]B.H.Zhang;[2]M.Y.Zheng;[2]K.Wu

机构地区：[1]College of Engineering,Shenyang Agricultural University,Shenyang 110866,PR China;[2]School of Materials Science and Engineering,Harbin Institute of Technology,Harbin 150001,PR China;[3]Liaoning Provincial Gem Quality Supervision and Inspection Center,Shenyang 110000,PR China

出　　处：《Journal of Magnesium and Alloys》索引2015年第3卷第2期,共7页

基　　金：This work was supported by“National Natural Science Foundation of China”(Grant No.51101043);“Key Project of Science and Technology Department of Heilongjiang Province of China”(Grant No.GC12A109);“the Fundamental Research Funds for the Central Universities”(Grant No.HIT.NSRIF.201130). 摘　　要：In the present study,AZ31B magnesium matrix composites reinforced with two volume fractions(3 and 5 vol.%)of micron-SiC particles(1μm)were fabricated by semisolid stirring assisted ultrasonic vibration method.The as-cast ingots were extruded at 350℃ with the extrusion ratio of 15:1 at a constant ram speed of 15 mm/s.The microstructure of the composites was investigated by optical microscopy,scanning electron microscope and transmission electron microscope.Microstructure characterization of the composites showed relative uniform reinforcement distribution and significant grain refinement.The presence of 1μm-SiC particles assisted in improving the elastic modulus and tensile strength.The ultimate tensile strength and yield strength of the 5 vol.%SiCp/AZ31B composites were simultaneously improved. 关键词：Magnesium matrix composite MICROSTRUCTURE Mechanical properties

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Microstructure and room temperature tensile properties of 1μm-SiCp/AZ31B magnesium matrix composite

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