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Electrochemical Technique For Corrosion Monitoring, Nadia Mohamed Khattab
Electrochemical Technique For Corrosion Monitoring, Nadia Mohamed Khattab
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The present work is a study of the applicability of linear polarisation resistance technique as a means for corrosion monitoring. Parameters tested were alloy composition, surface finish of specimens before exposure, concentration of aqueous environment and the additional effect of soil to the aqueou medium. A simple galvanostatic polarisation circuit was utilized. A polarisation resistance curve was then plotted from which the corrosion current densities and corrosion rates were calculated. The results of this work show that Corrosion reactions depend on both thermodynamic and kinetic parameters, also these reactions are under mixed control and the potential actually measured at the …