About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Tribology: Advances in Friction, Wear and Lubrication of Interfaces
|
| Presentation Title |
Surface engineering for reducing wear and corrosion of joint implant bearing surfaces |
| Author(s) |
Quentin Allen |
| On-Site Speaker (Planned) |
Quentin Allen |
| Abstract Scope |
Total joint replacements are common orthopedic surgical procedures, providing pain relief and restored mobility for patients with injured or diseased hip and knee joints. However, wear and corrosion of the bearing surface materials shorten the lifespan of these prosthetic implants. Our research lab has studied various surface engineering applications to reduce the wear and corrosion of the bearing surfaces, including bio-inspired multiscale surface textures and friction stir processing of cobalt-chromium-molybdenum (CoCrMo) alloys. The tribological performance of these modified surfaces were assessed under lubricated sliding conditions using a pin-on-disk tribometer. The textured surfaces were also studied with hydrodynamic lubrication simulations to identify optimal texture sizes and arrangement patterns. The optimum texture design parameters change with the multiscale texture arrangement pattern. The friction stir processed CoCrMo was evaluated with microstructure, microhardness, and electrochemical corrosion measurements. As the temperature of friction stir processing decreases, hardness increases, grain size decreases, and wear/corrosion decrease. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Surface Modification and Coatings, Biomaterials, Other |