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On the full film to mixed lubrication transition in rolling/sliding non-conformal contacts
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Machine Elements.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: 0000-0001-9110-2819
2018 (English)Conference paper, Oral presentation with published abstract (Refereed)
Abstract [en]

Lower weight components and thinner lubricating oils, with simultaneous improved power density, is an on-going pursuit in industry and lubrication science. The outcome is shifting the tribological performance towards more severe lubricating regimes. This in turn sets new levels of demands for knowledge about the complex and concurrent interaction between engineering surfaces and lubricants. An emerging need is therefore to make use of the enhancing properties of tribo-improvers, thus to gain knowledge of their working mechanism is consequently of uttermost importance. This study was set out to investigate the tribofilm formation induced by different degrees of surface roughness. A ball on disc device was operated under heavily loaded rolling/sliding conditions at elevated temperature to simulate gear like conditions. The tribological performance is ultimately evaluated in terms friction and wear with special emphasis on the development and mechanism of additive derived tribofilms.

Place, publisher, year, edition, pages
2018.
National Category
Tribology (Interacting Surfaces including Friction, Lubrication and Wear)
Identifiers
URN: urn:nbn:se:ltu:diva-75990OAI: oai:DiVA.org:ltu-75990DiVA, id: diva2:1351244
Conference
STLE Annual Meeting & Exhibition, Minneapolis, MN, USA, May 20-24
Available from: 2019-09-13 Created: 2019-09-13 Last updated: 2019-09-13

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Hansen, JonnyBjörling, MarcusLarsson, Roland
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Machine Elements
Tribology (Interacting Surfaces including Friction, Lubrication and Wear)

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