Zinc corrosion protection with 1,5-diphosphono-pentane

A set of identical measurement was performed to characterize the corrosion behaviour in Na 2SO 4 solution and surface structure of layers formed in aqueous and ethanol solutions of 1,5-diphosphonic acid on mechanically polished zinc substrates in order to understand the inhibition mechanism. Althoug...

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Bibliographic Details
Published inCorrosion science Vol. 50; no. 12; pp. 3314 - 3321
Main Authors Pilbáth, A., Nyikos, L., Bertóti, I., Kálmán, E.
Format Journal Article
LanguageEnglish
Published Kidlington Elsevier Ltd 01.12.2008
Elsevier
Subjects
A. Organic coatings
Applied sciences
B. EIS
B. XPS
C. Protective layers
Corrosion
Corrosion environments
Corrosion prevention
Exact sciences and technology
Metals. Metallurgy
Nonmetallic coatings
Production techniques
Surface treatment
A. Organic coatings
B. XPS
B. EIS
C. Protective layers
Corrosion
Protective layer
Photoelectron spectrometry
Impedance
Corrosion protection
Non metal coating
Surface treatment
Organic compounds
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Summary:A set of identical measurement was performed to characterize the corrosion behaviour in Na 2SO 4 solution and surface structure of layers formed in aqueous and ethanol solutions of 1,5-diphosphonic acid on mechanically polished zinc substrates in order to understand the inhibition mechanism. Although, the protective layers formed in ethanol and in aqueous solution show substantial differences, their protection efficiency tends to the same value after about 4 h in corrosion tests. Based on EIS, XPS and GD-OES data, a simple oxide–hydroxide/diphosphonate model of the interface is proposed.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0010-938X
1879-0496
DOI:10.1016/j.corsci.2008.09.021