退火方式对5252铝合金组织和性能的影响  

Effect of Annealing Method on Microstructure and Properties of 5252 Aluminum Alloy

作　　者：任月路[1] 赖仕祯 徐燕萍[1] 赵解扬[1] REN Yuelu LAI Shizhen XU Yanping ZHAO Jieyang(Guangxi Alnan Aluminum Fabrication Co., Ltd., Nanning 530031, China)

机构地区：[1]广西南南铝加工有限公司,广西南宁530031

出　　处：《热加工工艺》2017年第2期179-181,185,共4页Hot Working Technology

基　　金：国家国际科技合作专项项目(2014DFA50210)

摘　　要：研究了退火方式对5252铝合金组织及性能的影响。结果表明,使用360℃/4h工艺在箱式炉退火后,合金的屈服强度为85MPa、抗拉强度为196MPa、伸长率为25%;使用440℃/3min工艺在气垫式连续炉退火后,合金的屈服强度为71MPa、抗拉强度为189MPa、伸长率为27.5%。采用气垫式高温短时退火生产的卷材呈现分布均匀的等轴晶粒组织。Effect of annealing method on microstructure and properties of 5252 aluminum alloy was studied. The results show that： after annealing in a box type furnace with 360℃/4 h process,the yield strength is 85MPa, the tensile strength is 196MPa ,and the elongation is 25%; after annealing in air cushion furnace with 440℃/3min process, the yield strength is 71MPa, the tensile strength is 189MPa, and the elongation is 27.5%. The coiled material produced by the air cushion type high temperature short time annealing is an uniformly distributed equal axial grain microstructure.

关 键 词：5252铝合金 显微组织 退火方式 力学性能 

分 类 号：TG146.21[一般工业技术—材料科学与工程] TG156.2[金属学及工艺—金属材料]