Effect of Zr addition on the microstructure and tribological property of the anodization of Ti-6Al-4V alloy

The oxide layers of regular nanotubes structure were obtained on the surface of Ti-Zr alloys (Ti-6Al-4V-chi Zr (chi = 0, 20, 30, 40, 51)) by anodization. X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy(EDX) were used to characterize the morphology and composition of the nanotubes oxidized layers. The tribological property of the oxidized layers was evaluated using ball-on-disc wear tester. Neat microstructures can be obtained on all samples. With the addition of zirconium to the Ti-6Al-4V, the anodic oxidation is relatively intense, and the wear resistance of Ti-6Al-4V can be enhanced.