Influence of Different Application of Lubricants on Wear and Pre-existing Rolling Contact Fatigue Cracks of Rail Materials

W. J. Wang, R. Lewis, M. D. Evans, Q. Y. Liu

Research output: Contribution to journalArticlepeer-review

27 Citations (Scopus)

Abstract

Rolling contact fatigue (RCF) of rail can be a significant problem affecting safety and maintenance. Rail materials have been optimized to reduce it, but not enough is known about how friction management products applied to the rail affect crack growth. This study presents experimental results carried out to explore the influence of different lubricants and application orders on wear and pre-existing RCF cracks in rail materials. The results indicate that the types or properties of lubricants have a vital role in the wear rate and fatigue crack growth characteristics of rail materials after conditioning with 5000 dry cycles to initiate cracks. Using a different application order of two lubricants has a significant influence on the crack growth angles in the rail rollers.

Original languageEnglish
Article number58
Number of pages15
JournalTribology Letters
Volume65
Issue number2
Early online date31 Mar 2017
DOIs
Publication statusPublished - 1 Jun 2017
Externally publishedYes

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