Enhancement of corrosion protection of AISI 201 austenitic stainless steel in acidic chloride solutions by Ce-doped TiO2 coating

Ce-doped TiO2 coatings were applied by electrodeposition on a low-nickel austenitic stainless steel (AISI 201) bearing 8 wt% Mn to improve the electrochemical properties in acidic chloride solutions. Characterization of was performed scanning electron microscope equipped with energy dispersive X-ray spectroscopy (EDS) study tiny features. The corrosion behavior bare and coated evaluated aqueous solutions mixing different concentrations, 1 mol·L?1 H2SO4 0–1.5% NaCl. Potentiodynamic polarization tests conducted evaluate characteristics, potential Ecorr current density icorr. Further concerning weight loss (WL) using immersion for long-term determine corresponding steel's equivalent rates. It found that electrodeposited layer thickness ~1 ?m enhance resistance compared its counterpart, steel. showed icorr significantly declined half value all specimens shifted more positive when those WL measurements displayed AISI 201 experiences intensive degradation presence low concentration ions. However, resist aggressive ions consequently increase