Zr and Zr–Er alloyed layers were successfully deposited onto the TC11 alloy by double-glow plasma surface alloying technique.
Zr and Zr–Er alloyed layers showed not only high hardness but also great elastic property.
Both Zr and Zr–Er alloyed layers possessed a better corrosion resistance than TC11 alloy in a 10 wt.% HCl solution.
The corrosion resistance of the Zr alloyed layer can be improved by the incorporation of Er.