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Surface oxides can retard the onset of corrosion on metals in an aggressive environments. In this work, praseodymium is selected to modify the surface oxides on magnesium alloys based on the reactive element effect and added into pure magnesium and aluminum-containing magnesium alloys by ion implantation. A thicker praseodymium-rich oxide layer is obtained on the magnesium substrate after ion implantation...
Aluminum ion implantation is employed to modify pure Mg as well as AZ31 and AZ91 magnesium alloys and their surface degradation behavior in simulated body fluids is studied. Polarization tests performed in conjunction with scanning electron microscopy (SEM) reveal that the surface corrosion resistance after Al ion implantation is improved appreciably. This enhancement can be attributed to the formation...
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