Comparison of ENM, EIS and DC resistance for assessing and monitoring anti-corrosive coatings

摘要: This paper provides a brief review of the (mainly in-situ) electrochemical methods that have been applied to coatings assess corrosion protection ability. It discusses particularly noise measurement (ENM) which although still being developed has shown considerable promise as method for assessing in laboratory situation. Results are presented and compared with results from other impedance spectroscopy (EIS). The challenge how best apply ENM monitoring practical situation is addressed