T6热处理对Al-13Si-3.5Cu-1.3Mg-3Ni合金组织和性能的影响  

Effect of Solution Time on Microstructure and Properties of Al-13Si-3.5Cu-1.3Mg-3Ni Alloy

作　　者：牛渊博 王连登[1] 吴锦熙 陈明 赵洪全 NIU Yuan-bo;WANG Lian-deng;WU Jin-xi;CHEN Ming;ZHAO Hong-quan(School of Mechanical Engineering and Automation,Fuzhou University,Fuzhou 350000,Fujian,China;Fujian Jinrui Hi-Tech Co.,Ltd.,Sanming 353311,Fujian,China;Fujian Huawei Ju Seiko Technology Co.,Ltd.,Fuzhou 350100,Fujian,China)

机构地区：[1]福州大学机械工程及自动化学院,福建福州350000 [2]福建省金瑞高科有限公司,福建三明353311 [3]福建省华威钜全精工科技有限公司,福建福州350100

出　　处：《铸造》2024年第10期1386-1391,共6页Foundry

摘　　要：采用JMatPro软件计算不同成分合金的强度,对Al-13Si-Cu-Mg-Ni合金成分进行优化设计,得到Al-13Si-3.5Cu-1.3Mg-3Ni合金成分。利用Pandat相图计算软件,得到Al-13Si-3.5Cu-1.3Mg-3Ni合金的平衡相图,并配合OM、SEM、EDS、XRD等主要测试手段,研究了不同热处理工艺对过共晶铝硅合金组织和性能的影响。结果表明,Al-13Si-3.5Cu-1.3Mg-3Ni合金的最佳热处理工艺为固溶500℃+4 h,时效185℃+8 h。此时,合金的抗拉强度为330 MPa,伸长率为5.34%。JMatPro software was used to optimize the composition of Al-13Si alloy,and the composition of Al-13Si-3.5Cu-1.3Mg-3Ni alloy was obtained.The equilibrium phase diagram of the Al-13Si-3.5Cu-1.3Mg-3Ni alloy was obtained by using Pandat phase diagram calculation software.The effects of different heat treatment processes on the microstructure and properties of hypereutectic Al-Si alloy were studied by OM,SEM,EDS and XRD.The results showed that the optimal heat treatment process of the Al-13Si-3.5Cu-1.3Mg-3Ni alloy was solution at 500℃+4 h and aging at 185℃+8 h.At this time,the tensile strength of the alloy was 330 MPa and the elongation was 5.34%.

关 键 词：过共晶铝硅合金 T6热处理 显微组织 力学性能 相图计算 

分 类 号：TG146.21[一般工业技术—材料科学与工程] TG156.9[金属学及工艺—金属材料]