海水介质中复配型水杨醛类席夫碱对碳钢的缓蚀作用  

Corrosion Inhibition Behavior of Compound Salicyladehyde Schiff Base Inhibitor for Carbon Steel in Seawater

作　　者：刘峥[1] 刘进[1] 谢思维[1] 刘宝玉[1] 

机构地区：[1]桂林理工大学化学与生物工程学院,广西桂林541004

出　　处：《材料保护》2014年第2期39-43,67,共6页Materials Protection

基　　金：国家自然科学基金项目(21266006);广西自然科学基金项目(2012GXNSFAA053034)资助

摘　　要：为了研究复配型水杨醛类席夫碱在碳钢表面的缓蚀机理和缓蚀行为,利用电化学方法和表面分析技术测试了碳钢在加入缓蚀剂前后的海水介质中的极化曲线、交流阻抗谱和微观形貌,计算了缓蚀率。结果表明:复配型水杨醛类席夫碱具有明显的缓蚀效果;碳钢表面形成了缓蚀膜,其原子与碳钢表面铁原子相互结合。The polarization curves and alternating current electrochemical impedance spectra of carbon steel in seawater with or without compound salicyladehyde Schiff base inhibitor were measured by electrochemical methods,and the morphology of corroded carbon steel surface was observed with a scanning electron microscope.Furthermore,the corrosion inhibition rate was calculated,and the inhibition mechanism and inhibition performance of the inhibitor towards the carbon steel in seawater were examined.Results showed that title inhibitor was able to form a corrosion- inhibition film on carbon steel surface thereby exhibiting significant inhibition effectiveness towards the steel.

关 键 词：缓蚀作用 水杨醛类席夫碱 电化学性能 形貌 

分 类 号：TG174.42[金属学及工艺—金属表面处理]