Accession Number : ADA303176

Title :   Effect of Sliding Speed and Contract Stress on Tribological Properties of Ultra-High-Molecular-Weight Polyethylene.

Descriptive Note : Technical paper,

Corporate Author : NATIONAL AERONAUTICS AND SPACE ADMINISTRATION CLEVELAND OH LEWIS RESEARCH CEN TER

Personal Author(s) : Fusaro, Robert L.

PDF Url : ADA303176

Report Date : NOV 1982

Pagination or Media Count : 23

Abstract : 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)

Descriptors :   *SLIDING CONTACTS, *SLIDING FRICTION, *POLYETHYLENE, *SELF LUBRICATION, VELOCITY, POLYMERS, COMPOSITE MATERIALS, HIGH TEMPERATURE, MOLECULAR WEIGHT, STAINLESS STEEL, SURFACE PROPERTIES, WEAR, FRICTION, TRIBOLOGY.

Subject Categories : Lubricants and Hydraulic Fluids
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE