摘要
采用失重试验、极化曲线和电化学阻抗谱等方法,评价了不同缓蚀剂在人工海水中对5A05铝合金的缓蚀效果。结果表明:缓蚀效率依次为钩酸钠>2-疏基苯并咪哇〉三聚磷酸钠〉钿酸钠>2-疏基苯并噬哇〉亚硝酸钠〉8-程基唾咻>硅酸钠〉硫酸锌。铸酸钠、2-疏基苯并咪哇和三聚磷酸钠是最佳的缓蚀剂,根据失重试验得出它们的缓蚀效率分别为92・49%、90.47%和89.50%.
The corrosion inhibition effect of different corrosion inhibitors on 5A05 aluminum alloy in artificial seawater was evaluated by weight loss experiment,polarization curve and electrochemical impedance spectroscopy.The results showed that the order of corrosion inhibition efficiency was sodium tungstate>2-mercaptobenzimidazole>sodium tripolyphosphatesodium molybdate^>2-mercaptobenzothiazole^>sodium nitrite^>8-hydroxyquinoline>sodium silicate>zinc sulfate.Sodium tungstate,2-mercaptobenzimidazole and sodium tripolyphosphate were the best corrosion inhibitors,and the corrosion inhibition efficiency obtained through weight loss experiment was 92.49%,90.47%and 89.50%,respectively.
作者
陈庆
卜荣
张恒
王铭民
朱承飞
姚嘉兰
CHEN Qing;BU Rong;ZHANG Heng;WANG Mingmin;ZHU Chengfei;YAO Jialan(State Grid Jiangsu Electric Power Co.,Ltd.,Nanjing 211106,China;Nanjing Tech University,Nanjing 210024,China)
出处
《电镀与环保》
CAS
CSCD
北大核心
2020年第1期58-61,共4页
Electroplating & Pollution Control
关键词
缓蚀剂
海洋环境
5A05铝合金
极化曲线
电化学阻抗谱
inhibitors
marine environment
5A05 aluminum alloy
polarization curve
electrochemical impedance spectroscopy
