Next Article in Journal
A Study of Lubricant Inertia Effects for Squeeze Film Dampers Incorporated into High-Speed Turbomachinery
Previous Article in Journal
Non-Uniform Laser Surface Texturing of an Un-Tapered Square Pad for Tribological Applications
Article Menu

Export Article

Open AccessArticle
Lubricants 2017, 5(4), 42; doi:10.3390/lubricants5040042

Experimental Analysis of Grease Friction Properties on Sliding Textured Surfaces

1
School of Mechanical Engineering, Jiangsu University, Zhenjiang 212013, China
2
School of Automotive and Traffic Engineering, Jiangsu University, Zhenjiang 212013, China
*
Author to whom correspondence should be addressed.
Received: 4 October 2017 / Revised: 20 October 2017 / Accepted: 24 October 2017 / Published: 27 October 2017
View Full-Text   |   Download PDF [4091 KB, uploaded 27 October 2017]   |  

Abstract

There is comprehensive work on the tribological properties and lubrication mechanisms of oil lubricant used on textured surfaces, however the use of grease lubrication on textured surfaces is rather new. This research article presents an experimental study of the frictional behaviours of grease lubricated sliding contact under mixed lubrication conditions. The influences of surface texture parameters on the frictional properties were investigated using a disc-on-ring tribometer. The results showed that the friction coefficient is largely dependent on texture parameters, with higher and lower texture density resulting in a higher friction coefficient at a fixed texture depth. The sample with texture density of 15% and texture depth of 19 μm exhibited the best friction properties in all experimental conditions because it can store more grease and trap wear debris. The reduction of friction is mainly attributable to the formation of a stable grease lubrication film composed of oil film, transfer film and deposited film, and the hydrodynamic pressure effect of the surface texture, which increases the mating gap and reduces the probability of asperity contact. This result will help in understanding the tribological behaviour of grease on a textured surface and in predicting the lubrication conditions of sliding bearings for better operation in any machinery. View Full-Text
Keywords: grease lubrication; laser surface texturing; friction reduction; texture density; texture depth; mixed lubrication grease lubrication; laser surface texturing; friction reduction; texture density; texture depth; mixed lubrication
Figures

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).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Hua, X.; Puoza, J.C.; Zhang, P.; Xie, X.; Yin, B. Experimental Analysis of Grease Friction Properties on Sliding Textured Surfaces. Lubricants 2017, 5, 42.

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

1

Comments

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