Near-neutral pH corrosion of mill-scaled X-65 pipeline steel with paint primer
Shidong Wang, Lyndon Lambornb, Karina Chevilc, Erwin Gamboac, Weixing Chena,*(
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Fig. 14.. Equivalent circuit models used for fitting the impedance spectra of samples: (a) mill-scaled samples and (b) primer pre-coated samples. (Rs: solution resistance; CPEo: CPE of the reduction process of oxides; Ro: resistance of the reduction process of oxides; CPEi: CPE of the dissolution of iron; Ri: resistance of the dissolution of iron; CPEc: CPE of the primer layer; Rc: resistance of the primer layer).
