The role of triboparticulates in dry sliding wear

Jiaren Jiang, F.H. Stott, Margaret Stack

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

Abstract

In this paper, wear processes and mechanisms for wear transitions with sliding time and temperature during sliding of a nickel-based alloy, N80A, in oxygen at temperatures to 250°C are discussed. Transitions in wear from high rates to low rates with sliding time were always observed at all the temperatures investigated. The transitions in wear were usually accompanied by transitions in contact resistance between the rubbing surfaces from nearly zero to positive high values. It was found that wear debris particles were heavily involved in the wear processes. The transitions in wear and contact resistance with sliding time mainly resulted from the development of wear-protective layers following the compaction of wear debris particles on the rubbing surfaces. The adhesion of triboparticulates to each other and to the rubbing surfaces played an important role in the rapid decrease in wear rate with sliding time and with increase in temperature. Processes involved in the development of the wear-protective particle layers and mechanisms for the wear transitions have been described on the basis of experimental observations. The importance of triboparticulates in wear and its implications for wear protection are discussed.
Original languageEnglish
Title of host publicationProceedings of the World Tribology Congress
Place of PublicationBath, UK
Pages135
Publication statusPublished - 8 Sep 1997
EventWorld Tribology Congress - Bath, United Kingdom
Duration: 8 Sep 199712 Sep 1997

Conference

ConferenceWorld Tribology Congress
CountryUnited Kingdom
CityBath
Period8/09/9712/09/97

Keywords

  • triboparticulates
  • sliding wear
  • wear transition
  • wear-protective layers
  • wear debris particles

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