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Friction and wear characteristics of elastomers in lubricated contact with EALs
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Machine Elements.ORCID iD: 0000-0003-1454-1118
2008 (English)Conference paper, Poster (with or without abstract) (Other academic)
Abstract [en]

The friction and wear characteristics of several elastomers have been studied during reciprocating sliding conditions when lubricated with uncontaminated environmentally adapted lubricants and the same lubricants contaminated with moisture. The elastomers studied are Nitrile Butadiene Rubber (NBR), Hydrogenated Nitrile Butadiene Rubber (HNBR), and Fluorocarbon Rubber (FKM). The lubricants used are complex ester and polyol ester as well as both aged and non-aged polyol esters with 5% water content. Experiments were conducted using a Cameron-Plint test rig with a steel cylinder sliding in the longitudinal direction with a reciprocating motion against a curved elastomer specimen to avoid any edge contact. Sliding velocities were maintained low to reduce the thermal effects often associated with elastomer friction. In these tests, HNBR resulted in the lowest friction, with NBR the highest. The NBR specimens most often experienced wear, while FKM and HNBR experienced very little wear. The various oils, with some exceptions, had similar friction performance both at the higher and the lower loads. Experiments were also conducted using an SRV Optimol test rig at higher frequencies with a steel cylinder in contact with an elastomer mounted on a steel disc. The results from the SRV test rig differed significantly with those of the Cameron-Plint rig with FKM resulting the greatest wear and NBR producing minimal wear. This difference was primarily caused by the differences in contact geometry and the operating parameters between the tests.

Place, publisher, year, edition, pages
2008.
National Category
Tribology (Interacting Surfaces including Friction, Lubrication and Wear)
Research subject
Machine Elements
Identifiers
URN: urn:nbn:se:ltu:diva-30021Local ID: 3b0127d0-3ac6-11dd-8e42-000ea68e967bOAI: oai:DiVA.org:ltu-30021DiVA: diva2:1003248
Conference
Nordic Symposium on Tribology : 10/06/2008 - 13/06/2008
Note
Godkänd; 2008; Bibliografisk uppgift: Værtspublikationsredaktører: Jaakko Kleemola Værtspublikationsredaktører: Arto Lehtovaara Titel på proceedings: Proceedings of NORDTRIB 2008 Undertitel på proceedings: 13th Nordic Symposium on Tribology; 20080615 (brap)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2017-11-25Bibliographically approved

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