Next Article in Journal
Conventional and Highly Crosslinked Polyethylene in Total Knee Arthroplasty—A Design-Independent Wear Investigation
Next Article in Special Issue
The Impact of Fatty Acid Diisopropanolamides on Marine Gas Oil Lubricity
Previous Article in Journal / Special Issue
Tribological Evaluation of Date Palm Fruit Syrup–A Potential Environmental-Friendly Lubricant
Article Menu
Issue 3 (September) cover image

Export Article

Open AccessArticle
Lubricants 2017, 5(3), 24;

Friction and Wear of Self-Lubricating Materials for Hydropower Applications under Different Lubricating Conditions

Division of Machine Elements, Luleå University of Technology, Luleå 97187, Sweden
Author to whom correspondence should be addressed.
Academic Editor: James E. Krzanowski
Received: 12 April 2017 / Revised: 5 July 2017 / Accepted: 11 July 2017 / Published: 15 July 2017
(This article belongs to the Special Issue Green Chemistry in Lubrication)
Full-Text   |   PDF [6576 KB, uploaded 15 July 2017]   |  


Self-lubricating bearings in hydropower applications are often lubricated with water under boundary lubricating conditions. Polyhydric alcohols replacing water have shown the potential to reduce both friction and wear. The objective of this work is, therefore, to evaluate the effect of a polyhydric alcohol-based environmentally-acceptable lubricant (EAL) on the friction and wear of self-lubricating materials for conformal contacts under boundary lubricating conditions. The lubricating properties of four commercially-available self-lubricating bearing materials were investigated under three different lubricating conditions: dry, water and a new polyhydric alcohol-based EAL. Bearing materials include one metallic composite and three polymer composites. A reciprocating motion test rig was used to evaluate the wear and friction properties. Surface analysis was performed by scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), and optical profilometry. Results show that the wear rate for the polymer composites is increased when water is present compared to dry operating conditions. The new polyhydric alcohol-based EAL substantially improves both friction and anti-wear performance of all four self-lubricating bearing materials compared to both dry and water conditions. Surface analysis indicates that the material transfer to the counter-surface is limited when the polyhydric alcohol-based EAL is used. View Full-Text
Keywords: friction; wear; self-lubricating; EAL; hydropower friction; wear; self-lubricating; EAL; hydropower

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Berglund, K.; Shi, Y. Friction and Wear of Self-Lubricating Materials for Hydropower Applications under Different Lubricating Conditions. Lubricants 2017, 5, 24.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Lubricants EISSN 2075-4442 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top