Publication detail

Assessing the Performance of TOR Lubricants in Humid Environments and Under Dew Conditions

SKURKA, Š. GALAS, R. OMASTA, M. DING, H. WANG, W. KŘUPKA, I. HARTL, M.

Original Title

Assessing the Performance of TOR Lubricants in Humid Environments and Under Dew Conditions

Type

journal article in Web of Science

Language

English

Original Abstract

Top-of-rail (TOR) lubricants are commonly used for friction control in railway operations. They aim to lower friction and reduce noise and wear while ensuring sufficient transmission of traction/braking forces. However, the wheel-rail interface is an open system, so the conditions may suddenly change due to the weather, and different contaminants may enter the contact and influence the performance of these lubricants. Thus, this study examined the effect of humidity and dew on two commercial products, as these conditions often occur on the track. A methodology based on a creep curves measurement approach was used to assess product performance under various scenarios. All measurements were conducted on a universal tribometer in the ball-on-disc configuration covered with a climate chamber. The results show a strong influence of dew on the tested products, as dew lowered their performance parameters and caused low adhesion problems. Possible mechanisms of water-oil interaction and formation of oxidic third body layers were discussed. The main findings indicate that TOR lubricants may cause traction/braking problems if used in dew conditions. The present study may be helpful in optimising friction management methods in the future.

Keywords

Wheel-rail tribology; Friction modification; Humidity; TOR lubricants; Dew; Contamination

Authors

SKURKA, Š.; GALAS, R.; OMASTA, M.; DING, H.; WANG, W.; KŘUPKA, I.; HARTL, M.

Released

16. 7. 2024

Publisher

SPRINGER/PLENUM PUBLISHERS

Location

NEW YORK

ISBN

1023-8883

Periodical

Tribology Letters

Year of study

72

Number

3

State

United States of America

Pages from

72

Pages to

90

Pages count

19

URL

https://primo.lib.vutbr.cz/primo-explore/fulldisplay?docid=TN_cdi_proquest_journals_3081452823&context=PC&vid=420BUT&lang=cs_CZ&search_scope=Everything&adaptor=primo_central_multiple_fe&tab=default_tab&query=any,contains,Assessing%20the%20Performance%20of%20TOR%20Lubricants%20in%20Humid%20Environments%20and%20Under%20Dew%20Conditions&offset=0

BibTex

@article{BUT191138,
  author="Šimon {Skurka} and Radovan {Galas} and Milan {Omasta} and Haohao {Ding} and Wenjian {Wang} and Ivan {Křupka} and Martin {Hartl}",
  title="Assessing the Performance of TOR Lubricants in Humid Environments and Under Dew Conditions",
  journal="Tribology Letters",
  year="2024",
  volume="72",
  number="3",
  pages="72--90",
  doi="10.1007/s11249-024-01889-7",
  issn="1023-8883",
  url="https://primo.lib.vutbr.cz/primo-explore/fulldisplay?docid=TN_cdi_proquest_journals_3081452823&context=PC&vid=420BUT&lang=cs_CZ&search_scope=Everything&adaptor=primo_central_multiple_fe&tab=default_tab&query=any,contains,Assessing%20the%20Performance%20of%20TOR%20Lubricants%20in%20Humid%20Environments%20and%20Under%20Dew%20Conditions&offset=0"
}