Tribofilm formation and characterization of lubricating oils with biofuel soot and inorganic fluorides

Enzhu Hu, Karl Dearn*, Bingxun Yang, Ruhong Song, Yufu Xu, Xianguo Hu, Enzhu Hu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

289 Downloads (Pure)

Abstract

A series of tribological experiments have been conducted to characterise and study the formation of tribofilms derived from TiF3 and FeF3 catalysts impregnated in soot-contaminated lubricants. Results showed that inorganic fluorides reduced friction and wear in the specimen contaminated lubricants. With the best results observed when TiF3 was used. There were also indications that the frictional process, when coupled with the fluorides induced a structural change in the soot particles within the contact zones, contributing to the improved tribological performance. The key contributors to the formation of robust tribofilms were adsorption and tribo-chemical reactions. The better tribological response leads to a method for the design of engine lubricants to mitigate against the effects of soot contamination.

Original languageEnglish
Pages (from-to)163 - 172
Number of pages10
JournalTribology International
Volume107
Early online date22 Nov 2016
DOIs
Publication statusPublished - 1 Mar 2017

Keywords

  • Soot
  • Nanoparticles
  • Tribofilm
  • Tribochemistry
  • Lubricating oil

ASJC Scopus subject areas

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

Fingerprint

Dive into the research topics of 'Tribofilm formation and characterization of lubricating oils with biofuel soot and inorganic fluorides'. Together they form a unique fingerprint.

Cite this