Scuffing as Evaluated From the Viewpoint of Surface Roughness and Friction Energy

Jeng Haur Horng, Jen Fin Lin, Ke Yang Li

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

The surface scuffing occurring in line-contact lubrication is related to the roller's roughness pattern and asperity height. For surfaces with same contact asperity height, the magnitudes of friction power (Pf = fWVs) relevant to various roughness patterns are found to have the same sequence as the critical local temperatures. Instead of using the nominal contact area, the real contact area (At) is used to obtain the true friction power intensity (Ptfi = Pf/At). A new scuffing failure model (Ptfi · σ-0.317, where a denote rms roughness) shows that the scuffing resistance of surfaces with transverse roughness pattern is higher than that of surfaces with longitudinal and oblique patterns. For certain roughness patterns, a high root mean square roughness height σ is always associated with the high Ptfi is value just before scuffing.

Original languageEnglish
Pages (from-to)669-675
Number of pages7
JournalJournal of Tribology
Volume118
Issue number3
DOIs
Publication statusPublished - 1996 Jul

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

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