Article ID Journal Published Year Pages File Type
9809979 Surface and Coatings Technology 2005 11 Pages PDF
Abstract
The results of potentiodynamic polarization test showed that the WC-Cr0.48Al0.52N coating with lower porosity exhibited the lower corrosion current density. The galvanic corrosion current between the coating and the substrate showed low values. In EIS measurements, the charge transfer resistance (Rct) value of WC-Cr0.48Al0.52N coating only increased with the immersion time, when compared to the other coatings. It can be due to the corrosion products plugging the pores and increasing the pathway resistance.
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Physical Sciences and Engineering Materials Science Nanotechnology
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