Electrochemical Tests on the Optimum Cathodic Protection Potential of X70 Steel in the Presence of AC Interference

The presence of alternating current (AC) may cause serious damage on buried pipelines even when the off-potential matches -0.85V CSE criterion. The optimum cathodic protection potential (OCPP) is proved to be a more accurate parameter of cathodic protection. This paper applied electrochemical impedance spectroscopy (EIS) to investigate the OCPP of X70 steel… CONTINUE READING