About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
Advanced Coatings for Wear and Corrosion Protection
|
| Presentation Title |
Enhanced wear resistance of AS41 magnesium alloy via plasma electrolytic oxidation |
| Author(s) |
Bruno Pereira, Thiago Gontarski, Ricardo Torres, Paulo Soares Jr |
| On-Site Speaker (Planned) |
Bruno Pereira |
| Abstract Scope |
This study investigates the effect of plasma electrolytic oxidation (PEO) on the wear resistance of the AS41 magnesium alloy. Specimens were oxidized for 60, 120, and 180 seconds in a silicate-based electrolyte. X-ray diffraction revealed the formation of periclase-phase MgO, while surface analysis identified oxygen, silicon, fluorine, and potassium. Tribological tests using a 100Cr6 steel counterbody under 5 N showed that coatings formed at 120 and 180 seconds remained intact after 10,000 cycles, whereas 60-second coatings failed after 10 meters. Microscopy and chemical analysis of wear debris indicated significant counterbody wear. The results suggest that PEO treatments longer than 120 seconds significantly enhance the wear resistance of AS41, indicating potential for high-durability applications. |