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《Materials Review》 2018-S1
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Effect of Heat Treatment on Microstructure and Properties of Mg-3Zn-0.6Zr Alloy

SONG Renbo;HUANG Liang;CAI Changhong;WANG Luanxiang;WANG Li;School of Materials Science and Engineering,University of Science and Technology Beijing;School of Electronic and Information Engineering,University of Science and Technology Liaoning;  
In this paper,the heat treatment process mainly contains homogenizing treatment and solution treatment.The microstructure and properties of as-cast and heat-treated Mg-3 Zn-0.6 Zr alloy were studied by means of the OM,SEM,EDS,XRD,compression test and Vickers-hardness test.It was found that the grain refined and compression strength was also improved to 338.3 MPa by homogenizing treatment.After the solution treatment,the MgZn phase gradually dissolved into theα-Mg matrix and compression strength was improved to 431.1 MPa.The best heat treatment process is solution treating at 400 ℃ for 8 h,cooling by water.
【Fund】: 十三五国家重点研发计划(2016YFB0700303)
【CateGory Index】: TG146.22;TG166.4
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