均匀化热处理对5456铝合金铸锭组织与性能的影响  

Effects of Homogenization Heat Treatment on Microstructures and Properties of 5456 Aluminium Alloy Ingot

作　　者：黄淑萍[1] 何克准[1] 陈绍文 张航[1] 姚祥[1] HUANG Shuping;HE Kezhun;CHEN Shaowen;ZHANG Hang;YAO Xiang(Key Laboratory of Materials and Processes of Aluminum Alloys,Guangxi Alnan Aluminum Processing Co.,Ltd.,Nanning 530031,China)

机构地区：[1]广西南南铝加工有限公司广西铝合金材料与加工重点实验室,广西南宁530031

出　　处：《热加工工艺》2020年第2期119-121,共3页Hot Working Technology

基　　金：广西创新驱动发展专项项目(桂科AA17202007).

摘　　要：采用室温拉伸性能检测、硬度、导电率检测以及金相观察等方法,研究了均匀化退火工艺对5456铝合金铸锭性能和组织的影响。结果表明:不同均匀化工艺下5456铝合金铸锭组织与性能有明显的区别。经综合分析得到5456铝合金铸锭最佳均匀化制度为420℃×2 h+530℃×10 h。The effects of homogenization annealing process on the properties and microstructure of 5456 aluminum alloy ingot were studied by means of room temperature tensile test,hardness,conductivity tests and metallographic observation.The results show that,the microstructure and properties of 5456 aluminum alloy ingot under different homogenization processes are obviously different.The optimum homogenization system of 5456 aluminum alloy ingot is obtained by comprehensive analysis.The optimum homogenization system is 420℃×2 h+530℃×10 h.

关 键 词：5456铝合金 均匀化 拉伸性能 显微组织 

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