Electrochemical Impedance Spectroscopy as a Reliable and Powerful Technique for On-Line Corrosion Monitoring

Abstract

Abstract Electrochemical impedance spectroscopy (EIS) has been found to be a rapid an accurate technique for measuring corrosion rates in the most difficult situations and for yielding precious information concerning the occurrence of localized corrosion. When used in absence of potentiostatic control the technique carries less instrumental overhead and can additionally be operated in the least perturbing manner. The results obtained during two recent field tests will serve to illustrate the advantages of using EIS for on-line monitoring of general and localized corrosion.