Friction and wear of polystyrene crystal sliding against steel 100Cr6 in unlubricated contact

  • Soufyane Aounallah University Ferhat Abbas Sétif1, Algeria
  • Kamel Loucif University Ferhat Abbas Sétif1, Algeria
  • Nafissa Khennafi-Benghalem University Ferhat Abbas Sétif1, Algeria
Keywords: Dry wear, tribology, polystyrene crystal, plastic deformation, abrasion

Abstract

The Tribological behavior of Polystyrene Crystal disc sliding against a steel 100Cr6 ball with a radius of 5mm over a range of loads (1-5N) and speeds (12.5-63mm/s) was investigated using a ball-on-disc tribometer under unlubricated conditions. All the specimens were used as obtained from injection molding. For this purpose, we monitored the evolution of the friction coefficient and the wear rate as a function of sliding speed and normal load applied. The worn surfaces were examined by Scanning Electron (SEM) and optical microscope. Several wear mechanisms were observed: plastic deformation, abrasion in the track, and adhesion at the edge of the track. The mechanisms were found to depend on speed and load. The wear rate is of the order of 10-2mm3/N.M, which may explain that the wear is of a severe type.  

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Published
2022-05-28
How to Cite
AounallahS., LoucifK., & Khennafi-BenghalemN. (2022). Friction and wear of polystyrene crystal sliding against steel 100Cr6 in unlubricated contact. Physics and Chemistry of Solid State, 23(2), 293-301. https://doi.org/10.15330/pcss.23.2.293-301
Section
Scientific articles (Chemistry)