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Performance and mechanisms of silicate tribofilm in heavily loaded rolling/sliding non-conformal contacts
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Machine Elements. Gear Technology, Transmission Development, Scania CV AB, Södertälje.ORCID iD: 0000-0003-3637-9078
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Machine Elements.ORCID iD: 0000-0002-4271-0380
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Machine Elements.ORCID iD: 0000-0002-8972-2944
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Machine Elements.ORCID iD: 0000-0001-9110-2819
2018 (English)In: Tribology International, ISSN 0301-679X, E-ISSN 1879-2464, Vol. 123, p. 130-141Article in journal (Refereed) Published
Abstract [en]

Lubricant performance is vital as heavy-duty gear manufacturers increase power density in their efforts towards increased efficiency. In this work, a recently developed ionic liquid is introduced as a multifunction additive for use in hydrocarbon base fluid. A ball-on-disc tribological test machine was used to evaluate friction and wear in heavily loaded mixed rolling/sliding conditions. The novel multifunctional additive is benchmarked against conventional axle-gear oil additives, and results shows excellent tribological performance in terms of friction and wear. Post-test surface analysis of the wear scars revealed a silicate based tribofilm derived from the novel ionic additive, contrary to conventional phosphorous and/or sulfur based. The silicate tribofilm is correlated to a significantly increased wear resistance and vastly improved running-in performance.

Place, publisher, year, edition, pages
Elsevier, 2018. Vol. 123, p. 130-141
National Category
Tribology (Interacting Surfaces including Friction, Lubrication and Wear)
Research subject
Machine Elements
Identifiers
URN: urn:nbn:se:ltu:diva-67928DOI: 10.1016/j.triboint.2018.03.006ISI: 000431161600014Scopus ID: 2-s2.0-85043594654OAI: oai:DiVA.org:ltu-67928DiVA, id: diva2:1190367
Note

Validerad;2018;Nivå 2;2018-03-20 (andbra)

Available from: 2018-03-14 Created: 2018-03-14 Last updated: 2018-06-11Bibliographically approved

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Hansen, JonnyBjörling, MarcusMinami, IchiroLarsson, Roland

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