“…3), where it is assumed that the one at the highest frequencies represents the epoxy coating pore resistance, R p , and the coating capacitance, C p , while the other two time constants are related to the corrosion processes inside and underneath the epoxy coating. Namely, metal particles dispersed in epoxy coating may react with penetrated electrolyte and create new corrosion products, a process which is assumed to be related to the time constant R c,1 CPE 1 [18,19]. Also, when electrolyte reaches the metal substrate, its corrosion occurs, which may be presented by the time constant R c,2 CPE 2 [5,6].…”