Thin-film and marginal lubrication of PolyEtherKetone-steel sliding contacts at high temperature and high speed
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2018Keyword
PolyEtherKetone (PEK)Tribology
Polymer
Lubrication
High temperature
High speed
Synthetic base stocks
Friction test methods
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© 2018 Taylor & Francis. This is an Author's Original Manuscript of an article published by Taylor & Francis in Tribology Transactions on 21 March 2018 available online at http://www.tandfonline.com/10.1080/10402004.2017.1416435Peer-Reviewed
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PolyEtherKetone (PEK) is a suitable material for tribological systems which specifically require the properties of high chemical resistance, low component weight, seizure resistance under starved lubrication conditions and operation at higher temperatures than many other engineering polymers can survive. PEK is used with a liquid lubricant at high temperatures and velocities to reduce friction and also to control unstable friction and wear, particularly in the region of the material’s glass transition temperature, Tg. Intermittent and marginal lubrication using representative high temperature synthetic lubricants was applied to high speed, high temperature PEK/steel sliding contacts to determine the effectiveness of lubrication under these conditions. Variations in the stability of the thin lubricant films were observed, particularly under different load conditions. Under low load conditions, the lubricant polarity and the related ability to form a film in the contact was important. Under high load conditions, the thermal stability of the lubricant became more important in retaining stability in the friction and wear mechanisms. Whilst not ideal practice, marginal lubrication of PEK-steel sliding contacts can be achieved by selection of an appropriate lubricant, even in the glass transition region of PEK.Version
Accepted manuscriptCitation
Dyson CJ, Priest M, Fox MF et al (2018) Thin-film and marginal lubrication of PolyEtherKetone-steel sliding contacts at high temperature and high speed. Tribology Transactions. 61(5): 793-807.Link to Version of Record
https://doi.org/10.1080/10402004.2017.1416435Type
Articleae974a485f413a2113503eed53cd6c53
https://doi.org/10.1080/10402004.2017.1416435