Fig. 3: Electrochemical performance of coated and uncoated bronze samples.

A EIS curves of two samples. B Without correction and (C) ohmic-resistance-corrected Bode plots of coated and uncoated samples in 3 wt% NaCl electrolyte; (D) CV curves of two samples in 3 wt% NaCl electrolyte. E The potentiodynamic polarization curve of two samples. F EIS curves of two samples after electrochemical test. The linear polarization and cyclic voltammetry measurements were performed without applying explicit ohmic drop compensation.