Scuffing evaluation of fully formulated environmentally acceptable lubricant using barrel-on-disc technique

Reza Bayat, Arto Lehtovaara

Research output: Contribution to journalArticleScientificpeer-review

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Abstract

Scuffing evaluation is challenging due to the catastrophic nature of this failure mode. In this paper, a new scuffing test method was designed for evaluating the scuffing capacity of fully formulated industrial oils. A barrel-on-disc technique was employed in which the specimens are moving in opposite direction under rolling–sliding conditions. The maximum Hertzian pressure could reach up to 3.06 GPa, and the test plan was a combination of increasing-sliding speed and increasing-load steps. Furthermore, the tribofilm evolution was captured using Spacer Layer Interferometry Method (SLIM), and the correlation of tribofilm and micro-scuffing/scuffing was presented. Results revealed the difference between the scuffing capacity of Environmentally Acceptable Lubricants and the Mineral oils which had the same scuffing capacity in their datasheet.

Original languageEnglish
Article number107002
Number of pages10
JournalTribology International
Volume160
DOIs
Publication statusPublished - 2021
Publication typeA1 Journal article-refereed

Keywords

  • Environmentally acceptable lubricant
  • Running-in
  • Scuffing
  • Tribofilm

Publication forum classification

  • Publication forum level 2

ASJC Scopus subject areas

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

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