Corrosion characteristics of polyaniline-coated 316L stainless steel in sulphuric acid containing fluoride

Corrosion characteristics of polyaniline-coated 316L stainless steel in sulphuric acid containing fluoride

The corrosion resistance of conducting polyaniline (PANi) coatings deposited on 316L stainless steel (316L SS) at various cycle numbers of cyclic voltammetry (2-, 3- and 4-cycles) by electro-polymerization in sulphuric acid solution containing fluoride was investigated by electrochemical techniques....

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Veröffentlicht in:Corrosion science 2009-02, Vol.51 (2), p.330-338
Hauptverfasser: Le, D.P., Yoo, Y.H., Kim, J.G., Cho, S.M., Son, Y.K.
Format: Artikel
Sprache:eng
Schlagworte:
A. Polymer coatings
A. Stainless steel
Applied sciences
B. EIS
C. Passivity
Corrosion
Corrosion environments
Exact sciences and technology
Metals. Metallurgy
Nonmetallic coatings
Production techniques
Surface treatment
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Zusammenfassung:The corrosion resistance of conducting polyaniline (PANi) coatings deposited on 316L stainless steel (316L SS) at various cycle numbers of cyclic voltammetry (2-, 3- and 4-cycles) by electro-polymerization in sulphuric acid solution containing fluoride was investigated by electrochemical techniques. The corrosion resistance of the 316L SS substrate was considerably improved by the PANi coating. The increase of the cycle number of cyclic voltammetry increased the thickness and enhanced the performance of the PANi coating due to low porosity.
ISSN:0010-938X
1879-0496
DOI:10.1016/j.corsci.2008.10.028