| Abstract: | Electrochemical noise measurements on partly coated surfaces of different materials Defects or for a special function necessary interruptions in the polymer coating on metallic materials are preferred sites of increased corrosion attack. The delamination of coatings originating from those irregularities is of great practical relevance and thus now as before also subject of intensive scientific studies. Apart from already established research methods, the measurement of electrochemical noise offers an additional research method for assessment of delamination and corrosion phenomena around defects in the coating in situ in dependency on the substrate and coating materials, the corrosive agent and environment, as well as on other influencing parameters. In this paper results of such kind of noise measurements on two quite different corrosion systems are presented. |
