热、冷形变对5456铝合金组织和性能的影响  

The Effect of Hot Working and Cold Working on Structure and Properties of 5456 Aluminum-Alloy

作　　者：曲明洋[1] 

机构地区：[1]吉林化工学院材料科学与工程学院,吉林吉林132022

出　　处：《吉林化工学院学报》2016年第11期93-96,共4页Journal of Jilin Institute of Chemical Technology

摘　　要：研究热变形和冷变形对5456铝合金组织和性能的影响.通过实验探索发现,热变形可以显著降低β相尺寸,随着冷变形率的增大,5456铝合金的耐晶间腐蚀性较好,可以达到介敏感级,而剥落腐蚀性下降明显.测试结果对船舶用高镁铝合金的应用方面提供一定的参考价值.The effect of hot working and cold working on structure and properties of 5456 aluminum-alloy are researched.For the research of the experiment,with the increases of hot working rate,the size of βphase decreased.With the increases of cold working rate,the intergranular corrosion of 5456 aluminum-alloy gets up to 2 level.But with the increases of cold working rate,the exfoliation corrosion for Al-Mg alloy with high Mg content decreases obviously.The results of the experiment offer also some reference value for High Magnesium Aluminum-Alloy of the Marine Service.

关 键 词：5456铝合金 组织 性能 晶间腐蚀 剥落腐蚀 

分 类 号：TG174.3[金属学及工艺—金属表面处理]