Parametric study on the electrochemical impedance spectroscopy of organic-coated steels in hydrochloric acid solutions

摘要

In Haruyama's treatment, it was assumed that there is no difference between the exposed area of tortuous passages across the organic coating and the real metal/polymer delaminated area. In reality, the breakpoint frequency method determined area should be the area of the solution-permeated passages rather than the metal/polymer interfacial delaminated area, which was discussed by many researchers.