| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 615016 | Tribology International | 2013 | 9 Pages |
The tribological properties of ultrasonic nanocrystalline surface modification (UNSM) treated Al6061–T6 alloy were investigated at various normal loads under dry sliding conditions. Electron backscattering diffraction (EBSD) analysis revealed a microstructure alteration of about 70 μm in thickness generated by the UNSM technique. The friction test results showed that the friction coefficient and wear rate of the UNSM-treated specimen reduced by about 25 and 20% compared to that of the UNSM-free specimen, respectively. X-ray photoelectron spectroscopy (XPS) results showed that the oxide percentage on the worn surface increased, but that of carbon percentage decreased after the UNSM treatment.
► EBSD analysis revealed a microstructure alteration after the UNSM. ► Mechanical and tribological properties were improved by UNSM. ► Abrasive wear was the major wear mechanism of wear. ► Oxidation wear was observed for both UNSM-free and UNSM-treated specimens.
