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Friction and wear characteristics of different Pb-free bearing materials in mixed and boundary lubrication regimes
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Machine Elements.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Machine Elements.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Machine Elements.
2014 (English)Conference paper, Presentation (Refereed)
Abstract [en]

Traditional bearing materials contain different amounts of lead (Pb) due to its friction reducing properties. However, in view of the negative health and environmental impact of Pb, there are new directives that limit the usage of Pb in engine bearings. Owing to this, new bearing materials that provide at least comparable tribological performance to that of Pb containing alloys are emerging and manufacturers have already started manufacturing Pb-free bearing materials. It is, however; still unclear how these new engine bearing materials would perform in mixed and boundary lubricated conditions. In this study, a block-on-ring test setup was employed to investigate the tribological performance of several bimetal and multi-layer Pb-free bearings with different compositions of lining and overlay materials. Pb-containing bearing material was also studied as a reference material. Friction and wear properties of these bearing materials were investigated and their wear mechanisms under lubricated conditions have been analysed.

Place, publisher, year, edition, pages
2014.
Research subject
Machine Elements
Identifiers
URN: urn:nbn:se:ltu:diva-40493Local ID: fa5d9ccf-8c95-4e27-be85-46da62493661OAI: oai:DiVA.org:ltu-40493DiVA: diva2:1014015
Conference
Nordic Symposium on Tribology : 10/06/2014 - 13/06/2014
Note
Godkänd; 2014; 20140618 (andbra)Available from: 2016-10-03 Created: 2016-10-03Bibliographically approved

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