热轧变形对含0.5%B的6063铝合金导电率和组织性能的影响  

Effects of Hot Rolling Deformation on Electrical Conductivity and Structure and Properties of 6063 Al Alloy Containing 0.5%B

作　　者：喻亮[1] 刘远 张亚坚 姜艳丽[1] YU Liang;LIU Yuan;ZHANG Yajian;JIANG Yanli(College of Materials Science and Engineering,Guilin University of Technology,Guilin 541004,China)

机构地区：[1]桂林理工大学材料科学与工程学院,广西桂林541004

出　　处：《热加工工艺》2024年第13期138-141,共4页Hot Working Technology

基　　金：国家科学自然基金项目(51465014)。

摘　　要：借助导电率测试仪、电子万能材料试验机、场发射扫描电镜(SEM)和金相显微镜(OM),研究轧制变形量对含0.5%B的6063铝合金的导电性能、力学性能和显微结构的影响。结果表明:随着轧制变形量的增加,晶粒越来越细小。在增强合金拉伸强度、硬度的同时,合金的导电率并没有降低,轧制状态下的合金导电率高于铸态和均匀化的合金,其中导电率最高的为50%轧制变形量的合金,达到57.11%IACS,此时合金的抗拉强度达到128 MPa,伸长率为15.9%。当合金的最高轧制变形为75%时,抗拉强度为162 MPa,伸长率为10.35%,导电率为56.58%IACS。With the help of electrical conductivity tester,electronic universal material testing machine,field emission scanning electron microscope(SEM)and metallographic microscope(OM),the effect of rolling deformation on the conductivity performance,mechanical properties and microstructure of 6063 aluminum alloy containing 0.5%B was studied.The results show that with the increase of rolling deformation,the grains become smaller and smaller.While enhancing the tensile strength and hardness of the alloy,the electrical conductivity of the alloy does not decrease.The electrical conductivity of the alloy in the rolled state is higher than that in the as-cast and homogenized alloys,among which the highest conductivity is the rolled alloy with a deformation amount of 50%,reaching 57.11%IACS.At this time,the tensile strength of the alloy reaches 128 MPa and the elongation is 15.9%.When the highest rolling deformation of the alloy is 75%,the tensile strength is 162 MPa,the elongation is 10.35%,and the electrical conductivity is 56.58%IACS.

关 键 词：6063铝合金 轧制 导电率 力学性能 显微结构 

分 类 号：TG339[金属学及工艺—金属压力加工]