敏化时间对国产5083-H116铝合金组织与性能的影响  

Effect of Sensitization Time on the Microstructure and Properties of Domestic 5083-H116 Aluminum Alloy

作　　者：褚少旗 周洋 张繁星 刘海彬 李利[1] 王鹏云[1] 杨胜利 CHU Shaoqi;ZHOU Yang;ZHANG Fanxing;LIU Haibin;LI Li;WANG Pengyun;YANG Shengli(Luoyang Ship Material Research Institute,Luovang 471023,China)

机构地区：[1]中国船舶重工集团公司第七二五研究所,河南洛阳471023

出　　处：《材料开发与应用》2021年第5期16-19,共4页Development and Application of Materials

基　　金：河南省自然科学基金资助项目(202300410005)。

摘　　要：针对国产8 mm厚5083-H116铝合金,研究了敏化时间对其组织和性能的影响。结果表明,随着敏化时间的延长,5083铝合金微观组织中越来越多的β相(Al_(3)Mg_(2))沿晶界析出,并且形成大量的网状结构;5083铝合金腐蚀电位降低,晶间腐蚀倾向性持续升高,强度降低,伸长率提高。The effect of sensitization time on the microstructure and properties of domestic 8 mm-thick 5083-H116 aluminum alloy was studied.The results showed that with the increase of sensitization time,more and more beta phases precipitated on grain boundaries,forming a large number of network structures,the corrosion potential of the aluminum alloy decreased gradually,the intergranular corrosion tendency increasesd,the strength decreasesd,and the elongation increasesd.

关 键 词：5083-H116铝合金 敏化 Β相 

分 类 号：TG146.2[一般工业技术—材料科学与工程]