Relationship between amorphous structure and corrosion behaviour in a Zr-Ni metallic glass

► The effect of amorphous structure on corrosion was studied in a Zr2Ni system. ► The amorphous Zr2Ni alloy has a lower corrosion rate than the single crystal. ► Passive films on the amorphous alloy are more compact with lower defect density. ► Passive films on the amorphous alloy contain more ZrO2 and less NiO content.