Anticorrosion behaviour and tribological properties of AZ31 magnesium alloy coated with NbO/NbO-Mg/Mg layer by magnetron sputtering.

Magnesium alloys are attracting increasing attention for the fabrication of temporary implants because of their superior biodegradability and biocompatibility. However, their high degradation rate under physiological conditions limits their clinical applications. In this work, a NbO/NbO-Mg/Mg multilayer coating was prepared on the surface of AZ31 magnesium alloy by magnetron sputtering in order to improve its corrosion resistance.