Contribution of the electrochemical impedance measurement technique to zinc corrosion inhibition studies in acid media

Electrochemical impedance measurements have been applied to zinc corrosion inhibition by phosphonium salts in acid media. The results described in this work point out that this method is not always suitable to provide valid information about the corrosion rate: zinc corrosion in acid medium which ap...

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Bibliographic Details
Published in:Materials and corrosion 1989-11, Vol.40 (11), p.634-641
Main Authors: Troquet, M., Pagetti, J.
Format: Article
Language:English
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Summary:Electrochemical impedance measurements have been applied to zinc corrosion inhibition by phosphonium salts in acid media. The results described in this work point out that this method is not always suitable to provide valid information about the corrosion rate: zinc corrosion in acid medium which appears to be too fast a system. Beitrag der elektrochemischen Impedanzmeßtechnik zu Untersuchungen der Inhibierung der Korrosion von Zink in sauren Medien Die Inhibierung der Korrosion von Zink in sauren Medien durch Phosphoniumsalze ist mit der elektrochemischen Impedanzmessung untersucht worden. Die hier vorgelegten Ergebnisse lassen erkennen, daß diese Methode nicht immer gültige Informationen über die Korrosionsgeschwindigkeit von Zink in sauren Medien liefert; wahrscheinlich ist die Korrosion von Zink unter diesen Bedingungen ein zu schneller Prozeß.
ISSN:0947-5117
0043-2822
1521-4176
DOI:10.1002/maco.19890401103