Structure and water-barrier properties of vanadate-based corrosion inhibitor films

被引：32

作者：

Wang, Peng ^{[1
]}

Dong, Xuecheng ^{[1
]}

Schaefer, Dale W. ^{[1
]}

机构：

[1] Univ Cincinnati, Dept Chem & Mat Engn, Cincinnati, OH 45221 USA

来源：

CORROSION SCIENCE | 2010年 / 52卷 / 03期

关键词：

Aluminium; X-ray diffraction; Acid inhibition; Passive films; Passivity; Oxide coatings; ALUMINUM-ALLOY; PROTECTION; AA2024-T3; COATINGS;

D O I：

10.1016/j.corsci.2009.11.017

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Uniform, crack-free vanadium-based corrosion inhibitor films were grown on aluminum alloy 2024. Neutron and X-ray reflectivity were utilized to investigate the structure, water-barrier properties and speciation of the inhibitor film. The top part of the alloy participates in the formation of vanadate film. The similarity of films prepared from H2O and D2O implies the vanadate film is not hydrated. The film has a layered structure with vanadium enriched at the alloy interface. The film behaves as an effective water barrier when the thickness is greater than 800 angstrom. Films grown without K3Fe[CN](6) accelerator are found to be extremely thin. Published by Elsevier Ltd.

引用

页码：943 / 949

页数：7

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