Corrosion of Al85Ni9Ce6 amorphous alloy in the first hours of immersion in 3.5-wt% NaCl solution: The role of surface chemistry

AbstractThe surface chemistry and corrosion behavior of Al₈₅Ni₉Ce₆ melt-spun ribbons were studied after the first hours of immersion in 3.5-wt% NaCl solution at room temperature. X-ray photoelectron spectroscopy (XPS) was used to assess the chemical states of Al, Ce, Ni, and O. Electrochemical impedance spectroscopy was used to assess the corrosion resistance of the Al₈₅Ni₉Ce₆ ribbons. The alloy remained immersed for up to 48 hours. The results showed that hydroxide species in the passive film play a central role in the corrosion behavior of the Al₈₅Ni₉Ce₆ alloy.