Corrosion properties of steel protected by nanometre-thick oxide coatings

被引：29

作者：

Diaz, Belen ^{[1
]}

Harkonen, Emma ^{[2
]}

Swiatowska, Jolanta ^{[1
]}

Seyeux, Antoine ^{[1
]}

Maurice, Vincent ^{[1
]}

Ritala, Mikko ^{[2
]}

Marcus, Philippe ^{[1
]}

机构：

[1] Ecole Natl Super Chim Paris, LPCS, Chim ParisTech, CNRS,UMR 7045, F-75005 Paris, France

[2] Univ Helsinki, Inorgan Chem Lab, FIN-00014 Helsinki, Finland

来源：

CORROSION SCIENCE | 2014年 / 82卷

关键词：

Low alloy steel; EIS; ToF-SIMS; Oxide coatings; Atomic layer deposition; ATOMIC LAYER DEPOSITION; CHEMICAL-VAPOR-DEPOSITION; CATHODIC ARC DEPOSITION; STAINLESS-STEEL; ELECTROCHEMICAL IMPEDANCE; MULTILAYER COATINGS; FORMATION WATER; MILD-STEEL; X65; STEEL; FILMS;

D O I：

10.1016/j.corsci.2014.01.024

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A comprehensive study of the corrosion properties of low alloy steel protected by 40-50 nm aluminium and tantalum mixed oxide coatings grown by atomic layer deposition is reported. Electrochemical and surface analysis was performed to address the effect of substrate surface finish and whether an oxide mixture or nanolaminate was used. There was no dissolution or breakdown for nanolaminate alumina/ tantala stacks in acidic NaCl solution. Localised corrosion (pitting) took place when defects exposing the substrate pre-existed in the coating. Substrate pre-treatment by brushing and H-2-Ar plasma was instrumental to block or slow down pit initiation by reducing the defect dimensions. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：208 / 217

页数：10

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