Title of article
INVESTIGATION OF BLISTER FORMED ON COATED MILD STEEL USING SCANNING KELVIN PROBE
Author/Authors
Sahir, Zalilah Sharer Universiti Teknologi Malaysia - Faculty of Petroleum and Renewable Energy Engineering - Department of Gas Engineering, Malaysia , Sykes, John Malcolm University of Oxford - Department of Materials, UK.
From page
139
To page
154
Abstract
The degradation of a coated metal in terms of the area underneath a blister has been studied after being immersed in 3% sodium chlorida and 3% ammonium chloride solution. Scanning Kelvin probe (SKP) was used to map electrochemical potentials, identifying anodic and cathodic regions underneath a blister and the surrounding coating. For blisters formed on coated panel immersed in sodium chlorida solution, SKP potential map reveals that the blister has formed at a cathode due to alkali but anodes form nearby (not remote). Meanwhile SKP potential map for blister formed on coated panel in 3% ammonium chloride reveals the presence of cathodic regions within the anodic areas.
Keywords
Organic coating , scanning Kelvin Probe , blister
Journal title
Jurnal Teknologi :F
Journal title
Jurnal Teknologi :F
Record number
2715692
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