| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1686938 | Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms | 2006 | 5 Pages |
Surface modification of a Ti–Al–Zr alloy with nitrogen implantation is considered as a method to improve its tribological properties especially wear and hardness. The implantation was carried out at fluences range from 1 × 1016 to 1 × 1017 ions/cm2 and energy 65 keV. The tribological tests for the friction coefficients and wear were made on a pin-on-disk tribotester with the load 60 mN. Glancing angle X-ray diffraction (GAXRD) and X-ray photoelectron spectroscopy (XPS) analyses were performed to obtain surface characterization of the implanted sample. The unimplanted and implanted samples were also annealed at 500 °C in order to understand the influence of annealing on the tribological properties of Ti–Al–Zr. The hardness showed significant improvement at the higher fluence. After annealing at 500 °C, the friction coefficient exhibited a relative decrease for the nitrogen-implanted samples. In addition, the wear rates of the implanted samples exhibited a great decrease after annealing at 500 °C. Nature of the surface and reason for the variation and improvement in wear resistance were discussed in detail.
