摘要
本工作采用的热处理工艺分为均匀化处理及固溶处理,通过金相显微镜、扫描电镜、能谱分析、X射线衍射分析、压缩试验和硬度测量等多种实验方法,研究Mg-3Zn-0.6Zr合金铸态和热处理态的组织及性能。研究发现,均匀化处理后,铸态合金晶粒细化,抗压强度提高到338.3 MPa;固溶处理后,铸态合金中的MgZn第二相逐渐溶解到α-Mg基体中,抗压强度提高到431.1 MPa。最后,确定了最佳热处理工艺为:固溶处理温度400℃,保温8h,水冷。
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.
作者
宋仁伯
黄良
蔡长宏
汪孪祥
王莉
SONG Renbo 1, HUANG Liang 1, CAI Changhong 1, WANG Luanxiang 1, WANG Li 2(1 School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083;2 School of Electronic and Information Engineering, University of Science and Technology Liaoning, Anshan 11405)
出处
《材料导报》
EI
CAS
CSCD
北大核心
2018年第A01期203-207,共5页
Materials Reports
基金
十三五国家重点研发计划(2016YFB0700303)
