Corrosion protection of Mg-5Li alloy with epoxy coatings containing polyaniline

被引：106
作者：
Shao, Yawei [1 ,2 ]
Huang, Hui [1 ]
Zhang, Tao [1 ,2 ]
Meng, Guozhe [1 ,2 ]
Wang, Fuhui [1 ,2 ]
机构：
[1] Harbin Engn Univ, Minist Educ, Key Lab Superlight Mat & Surface Technol, Corros & Protect Lab, Nantong ST 145, Harbin 150001, Peoples R China
[2] Chinese Acad Sci, Inst Met Res, State Key Lab Corros & Protect, Shenyang 110016, Peoples R China
来源：
CORROSION SCIENCE | 2009年 / 51卷 / 12期
基金：
中国国家自然科学基金;
关键词：
EIS; XPS; Paint coating; ELECTROCHEMICAL NOISE METHOD; ORGANIC COATINGS; MILD-STEEL; LOCALIZED CORROSION; PITTING CORROSION; PIT INITIATION; PURE ALUMINUM; MAGNESIUM; MECHANISM; SULFATE;
D O I：
10.1016/j.corsci.2009.08.012
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The protective ability of epoxy coating containing polyaniline (PANI coating) on Mg-5Li alloy in 3.5% NaCl aqueous solution has been studied by means of EIS and electrochemical noise measurements (EN). The results of EN and EIS revealed that the PANI coating protected Mg-5Li alloy from corrosion perfectly. XPS results indicated that the presence of polyaniline changed the chemical structure of the corrosion film on the alloy surface. An analysis of the electrochemical noise data based on stochastic analysis indicated that the corrosion growth probability of Mg-5Li alloy beneath the coating was decreased by the addition of polyaniline. (C) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码：2906 / 2915
页数：10
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