Unravelling the corrosion inhibition mechanisms of bi-functional inhibitors by EIS and SEM-EDS

被引：90

作者：

Garcia, S. J. ^{[1
]}

Markley, T. A. ^{[2
]}

Mol, J. M. C. ^{[3
]}

Hughes, A. E. ^{[2
]}

机构：

[1] Delft Univ Technol, Dept Aerosp Struct & Mat, Novel Aerosp Mat Grp, NL-2629 HS Delft, Netherlands

[2] CSIRO Mat Sci & Technol, Melbourne, Vic, Australia

[3] Delft Univ Technol, Dept Mat Sci & Engn, NL-2629 HS Delft, Netherlands

来源：

CORROSION SCIENCE | 2013年 / 69卷

关键词：

Alloy; Aluminium; Rare-earth elements; EIS; Neutral inhibition; ALUMINUM-ALLOY; 2024-T3; LOCALIZED CORROSION; ARTIFICIAL DEFECTS; PITTING CORROSION; AA2024-T3; BEHAVIOR; CHROMATE; PARTICLES; INTERMETALLICS; MICROSCOPY;

D O I：

10.1016/j.corsci.2012.12.018

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this work the corrosion inhibition effect of aluminium alloy AA2024-T3 in aqueous solution by an inorganic cerium salt (i.e. cerium chloride) and an organic one (i.e. cerium dibutyl phosphate) is presented. The research involved long term immersion tests (up to 8 d) followed up by EIS. The analysis was complemented by a systematic selection of the most probable equivalent circuits and scanning electron microscope analysis combined with X-ray energy dispersive spectroscopy. This study highlights the different corrosion protection mechanisms of organic and inorganic ions. A model of protection is suggested based on the combination of techniques. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：346 / 358

页数：13

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