In this webinar, Dr. Frank Cheng discusses a wide variety of sources that generate AC interference as well as the fundamentals of AC corrosion. Thresholds of AC current density to initiate corrosion pits in active and passive environments are determined, and coating properties/performance and degradation are discussed. Shifts in Cathodic Protection are analyzed in order to better understand CP effectiveness, and recommendations are given to determine "true" CP potentials applied to the pipelines under AC Interference.
