Fig. 2: Corrosion characteristics of the stainless steels.
From: Significant reduction of corrosion of stainless steel by strong-field laser surface passivation
a Cathodic PDP curves of the pristine and LH304 samples measured in saline, acidic, and alkaline solutions; b The icorr and contact angle (CA) values obtained in our work (LH304) and those (see Table S2) reported in literatures by laser processing techniques; c Nyquist plots obtained from EIS for the pristine and LH304 samples. Inset: Zoomed-in Nyquist plots; d Cyclic voltammogram (left) and the measured (rectangle dots) and fitted (solid line) double layer charging current densities versus the scan rate (right) of LH304; e Corrosion current densities of the pristine and LH304 samples immersed in the 3.5 wt.% NaCl aqueous solution for nine months (>6500 h) by one-cycle and five-cycle PDP measurements. Inset: Surface appearances taken by a digital camera for pristine and LH304 without (original) and with (5 cycles) PDP measurements
