Effects of surface composition, environment and morphology on friction and wear: an overview

Yip Wah Chung*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

Asperity contacts provide the first line of defense against friction and wear. In typical cases, stresses acting on asperities are large enough to cause the formation of wear particles. These wear particles, depending on their chemical nature and surrounding environment, may agglomerate to result in ploughing and abrasion. Exposure of underlying clean metallic surfaces may result in lubricant degradation. In addition, even under relatively low speed sliding conditions, interfacial flash heating of asperities can lead to chemical changes in the substrate materials and reduced coverage of the surfaces by lubricant molecules. The latter can lead to premature failure under moderate loading conditions. The role of the environment in markedly affecting the durability of tribosystems will be discussed.

Original languageEnglish (US)
Pages (from-to)423-427
Number of pages5
JournalSurface and Coatings Technology
Volume54-55
DOIs
StatePublished - Jan 1 1992

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

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