5052铝合金表面晶粒超细化后腐蚀性能研究  

Study on Corrosion Property of 5052 Aluminium Alloy with Ultrafine-grained Surface

作　　者：陈渊[1] 尹志新[1] 樊新波[1] 

机构地区：[1]广西大学机械工程学院,广西南宁530004

出　　处：《热加工工艺》2010年第2期7-9,共3页Hot Working Technology

基　　金：广西壮族自治区自然科学基金资助(桂科自0542006)

摘　　要：对表面晶粒超细化和未经表面超细化处理的5052铝合金的样品分别进行仿海水腐蚀对比实验,在3.5%NaCl+0.05%MgCl2(原子分数)水溶液中分别测出不同表面晶粒尺寸的腐蚀速率。结果表明,5052铝合金表面晶粒超细化后抗蚀性能提高,其平均腐蚀速率与表面晶粒尺寸呈线性关系。The corrosion tests of 5052 aluminium alloy with ultrafine-grained and non-treatment surface were carried out in the entironment of simulated sea. The corrosion rates were also measured in 3.5%NaCl ＋ 0.05%MgCl2 （atomic percentage） solution. The results show that the corrosion property of 5052 aluminium alloy with ultrafine-grained surface improves. The average corrosion rate is linearly related to surface grain size.

关 键 词：铝合金 表面晶粒超细化 硬度 超细晶 

分 类 号：TG146.21[一般工业技术—材料科学与工程]