Intergranular pitting tendency of yttrium implanted Inconel 600 in acidic chloride media

► The surface of Inconel 600 was modified by 0.5 MeV yttrium ions at room temperature. ► Electrochemical testing of the material was conducted before and after irradiation. ► Potentiodynamic polarization, EIS and Mott-Schottky techniques were used. ► Ion implantation greatly improves the intragranular pitting resistance of the alloy.