Hydrogen peroxide-assisted electrochemical oxidation for improved corrosion resistance of DLC-coated 316 L stainless steel

, demonstrating that the beneficial effect of oxidation does not increase monotonically with oxidant concentration. These findings identify an optimum oxidation window in which defect-mediated electrochemical activity is most effectively suppressed and establish electrochemical oxidation as a defect-targeted post-treatment strategy for upgrading the corrosion resistance of DLC-coated stainless steel.