Wind turbine lubrication: low temperature fretting wear behaviour of four commercial greases
Author(s)
Type
Journal Article
Abstract
Fretting tests on four commercial greases were run on a ball-on-disc machine at 25, 7, − 20, − 40 °C. Post-test wear was measured on the ball and the chemical composition of lubricant films in the wear scar analysed by FTIR (RA-IRS), Raman and SEM-EDS. At 25 and 7 °C the greases had similar friction and wear properties. At − 20 and − 40 °C the highest base-oil viscosity grease gave an inferior friction and wear performance. RA-IRS analysis showed thickener remaining in the wear scar for most test conditions. The highest wear was linked to the absence of thickener in the scar. Better wear and friction performance at low temperatures was associated with thickener present in the lubricated contact and lowest base-oil viscosity.
Date Issued
2023-09
Date Acceptance
2023-06-12
Citation
Tribology International, 2023, 187
ISSN
0301-679X
Publisher
Elsevier
Journal / Book Title
Tribology International
Volume
187
Copyright Statement
© 2023 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
Identifier
https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:001028933900001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=a2bf6146997ec60c407a63945d4e92bb
Subjects
Engineering
Engineering, Mechanical
Fretting wear
Grease
Low temperature
MECHANISMS
Science & Technology
Technology
TRACK REPLENISHMENT
Wind turbine
Publication Status
Published
Article Number
108706
Date Publish Online
2023-06-15