SCANNING KELVIN PROBE APPLIED TO LOCALISED CORROSION

This paper focuses on specific applications of the SKP system. The instrument is calibrated, using different thickness of a model polymer Poly Vinyl Butyral (PVB) on mild steel and on galvanised steel. Artificial defects are used to show how the instrument is capable of detecting a localised corrosi...

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Bibliographic Details
Main Authors: A. Hussain, Sk M. Haque
Format: Article
Language:English
Published: El Oued University 2015-01-01
Series:Journal of Fundamental and Applied Sciences
Online Access:http://jfas.info/index.php/jfas/article/view/11/10
Description
Summary:This paper focuses on specific applications of the SKP system. The instrument is calibrated, using different thickness of a model polymer Poly Vinyl Butyral (PVB) on mild steel and on galvanised steel. Artificial defects are used to show how the instrument is capable of detecting a localised corrosion cell and its ability to picture the delamination of the coating from the steel substrate. An industrial application is undertaken with the instrument, where epoxy coated galvanised steel; with an introduced defect in the coating and various added inhibitors. Chromates and chromate replacements have been studied.
ISSN:1112-9867