Fig. 12: Electrochemical analysis of galvanic couple (steel substrate-two types of coated steel). | npj Materials Degradation

Fig. 12: Electrochemical analysis of galvanic couple (steel substrate-two types of coated steel).

From: Corrosion-induced hydrogen evolution, absorption, and cracking behaviors of ultra-high-strength galvanized and galvannealed steel sheets

Fig. 12

a Potentiodynamic polarization curves obtained in a 3.5% NaCl + 0.3% NH4SCN solution, indicating the galvanic couple potentials (Ecouple (GI-CR_N), Ecouple (GA-CR_N)), applied cathodic polarization levels on CR_N with GI and GA, respectively, and the increased current densities on CR_N, polarized cathodically, by galvanic coupling with GI and GA, respectively. b Quantitative representation of the parameters (applied cathodic polarization and increased current density), marked on a.

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