Effect of Sliding Speed and Contract Stress on Tribological Properties of Ultra-High-Molecular-Weight Polyethylene.
NATIONAL AERONAUTICS AND SPACE ADMINISTRATION CLEVELAND OH LEWIS RESEARCH CEN TER
Pagination or Media Count:
A pin-on-disk apparatus was used to investigate the effect of sliding speed on the friction, wear, and transfer film characteristics of hemispherically tipped AIST 44OC high-temperature HT stainless-steel riders sliding against ultra-high- molecular-weight polyethylene UHMwPE disks. The surface morphology of the wear track was studied to determine possible wear mechanisms. Geometry effects were determined by comparing the results to those of others who used different specimen configurations. The results indicate that sliding speed, sliding distance, contact stress, and specimen geometry can all markedly influence the tribological properties of UHMWPE. MM
- Lubricants and Hydraulic Fluids