固溶前退火对2024铝合金薄板组织与性能的影响  

Effect of annealing before solution treatment on microstructure and properties of 2024 aluminum alloy sheet

作　　者：张航[1] 何克准[1] 黄淑萍[1] 张江斌 Zhang Hang;He Kezhun;Huang Shuping;Zhang Jiangbin(Guangxi Key Laboratory of Materials and Processes of Aluminum Alloys,Guangxi Alnan Aluminum Fabrication Co. ,Ltd.,Nanning Guangxi 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

出　　处：《金属热处理》2019年第6期169-171,共3页Heat Treatment of Metals

基　　金：广西科学研究与技术开发计划项目(桂科AA17204012)

摘　　要：采用热分析、拉伸试验、EBSD等分析手段,研究了固溶前退火对2024铝合金薄板组织和力学性能的影响。结果表明:固溶前进行350℃高温退火,再结晶晶粒长大,力学性能相对直接固溶时效大幅降低。固溶前进行250℃低温退火,再结晶晶粒特征与直接固溶处理的较为接近,再结晶Cube织构得到强化,力学性能相对直接固溶时效仅有小幅下降。The influence of annealing before solution treatment on the microstructure and mechanical properties of the 2024 aluminum alloy sheet was investigated by means of thermal analysis,tensile testing and EBSD.The results show that the high-temperature annealing at 350℃before solution treatment can coarsen the recrystallized grains,and the mechanical property is greatly reduced.Annealed at 250℃before solution treatment,the characteristics of recrystallized grains is similar to those of direct solution treatment.The recrystallized texture of the Cube is strengthened,and the mechanical properties only slightly decreases.

关 键 词：固溶 退火 2024铝合金 组织 性能 

分 类 号：TG146[一般工业技术—材料科学与工程]