稳定化退火制度对Al-4.5Mg-0.7Mn-0.2Er合金板材组织和性能的影响  

Effect of stabilizing annealing on microstructure and properties of Al-4.5Mg-0.7Mn-0.2Er alloy sheet

作　　者：韩颖[1] 邹立国[1] 王国军[1] 林森[1] 郑天 张立君[1] HAN Ying;ZOU Li-guo;WANG Guo-jun;LIN Sen;ZHENG Tian;ZHANG Li-jun(Northeast Light Alloy Co.,Ltd.,Harbin 150060,China)

机构地区：[1]东北轻合金有限责任公司,黑龙江哈尔滨150060

出　　处：《轻合金加工技术》2021年第3期26-30,共5页Light Alloy Fabrication Technology

基　　金：国家重点研发计划(2016YFB0300804);黑龙江省中央引导地方科技发展专项项目(ZY17C02)。

摘　　要：试验研究不同稳定化退火制度对Al-4.5Mg-0.7Mn-0.2Er合金冷轧板材组织和性能的影响。结果表明:冷轧板材在290℃退火,随着退火时间增加板材的强度逐渐降低、塑性逐渐增大;随着退火时间增加,板材的晶间腐蚀失重值逐渐减少;板材在290℃,保温45 min退火,其强度、塑性和耐蚀性为最佳。The effects of different stabilizing annealing systems on the microstructure and properties of cold rolled Al-4.5Mg-0.7Mn-0.2Er alloy sheets were investigated.The results show that for the cold rolled sheet annealed at 290℃,with the increase of annealing time,the strength of the sheet gradually decreases and the plasticity gradually increases;with the increase of annealing time,the weight loss of intergranular corrosion of the sheet gradually decreases.The strength,plasticity and corrosion resistance are the best for the sheet annealed at 290℃for 45 min.

关 键 词：Al-4.5Mg-0.7Mn-0.2Er合金板材 稳定化退火 显微组织 耐蚀性能 

分 类 号：TG166.3[金属学及工艺—热处理]