Corrosion Behavior of Surfaced AM50 Magnesium Alloys under Stress Conditions
Micro-arc oxidization of AM50 magnesium alloys was studied. The influence of micro-arc oxidization process was investigated; phase structure were analyzed using X-ray diffraction (XRD). Open circuit potential (OCP) and electrochemical impedance spectroscopy (EIS) were used to evaluate the corrosion resistance of ceramic coatings formed on magnesium alloys under stress conditions. XRD analyses indicate that the ceramic coatings fabricated on the surface of magnesium alloys by micro-arc oxidization are composed of spinel phase MgAl2O4 The corrosion resistance of ceramic coatings is improved compared with magnesium alloy substrate.
A. Eliezer "Corrosion Behavior of Surfaced AM50 Magnesium Alloys under Stress Conditions", Advanced Materials Research, Vol. 95, pp. 79-83, 2010