新型双面铸造冷却方式对5154铝镁合金线材组织及性能的影响  

Effect of New Double-Sided Casting Cooling on Microstructure and Properties of 5154 Al-Mg Alloy Wire

作　　者：吴顺意 黄显吞[2] WU Shunyi;HUANG Xiantun(Nanning GulGuigong Education Technology Co.,Ltd.,Nanning 530000,China;Baise College,Baise 533000,China)

机构地区：[1]南宁市桂工教育科技有限公司,广西南宁530000 [2]百色学院,广西百色533000

出　　处：《金属材料与冶金工程》2023年第5期49-52,共4页Metal Materials and Metallurgy Engineering

基　　金：广西百色市科技开发项目(百科20183013)。

摘　　要：为提高5154铝镁合金线材的综合性能,采取不同铸造冷却方式对5154铝合金线材进行试验研究,采用扫描电子显微镜、拉伸力学测试仪及电阻测试仪对合金材料的组织和性能进行研究,结果表明:采用新型双面冷却工艺生产的5154铝镁合金晶粒细小且均匀,合金晶粒得到了细化;其制备的φ8mm铝镁合金铸杆抗拉强度高达242MPa,断裂伸长率为22%,导电率为36%IACS,比传统单面冷却方法所制备的样品指标分别提高了7.1%、21.1%和4.3%。In order to improve the comprehensive performance of 5154 Al-Mg alloy wire,experiments were conducted on 5154 Al-Mg alloy wire by different casting cooling methods.The microstructure and properties of alloy materials were studied by scanning electron microscope,tensile mechanics tester and resistance tester.The results show that:The 5154 A1-Mg alloy produced by the new double-sided cooling process has fine and uniform grain grains and the alloy grains are refined.The tensile strength of φ8mm aluminum-magnesium alloy cast rod is up to 242 MPa,the elongation at break is 22%,and the electrical conductivity is 36%IACS,which are 7.1%,21.1%and 4.3%higher than those prepared by the traditional single-side cooling method,respectively.

关 键 词：铝镁合金 冷却方式 力学性能 电学性能 

分 类 号：TG166.4[金属学及工艺—热处理]