Water Lubrication of Stainless Steel using Reduced Graphene Oxide Coating
Open Access
- 23 November 2015
- journal article
- Published by Springer Science and Business Media LLC in Scientific Reports
- Vol. 5 (1), 17034
- https://doi.org/10.1038/srep17034
Abstract
Lubrication of mechanical systems using water instead of conventional oil lubricants is extremely attractive from the view of resource conservation and environmental protection. However, insufficient film thickness of water due to low viscosity and chemical reaction of water with metallic materials have been a great obstacle in utilization of water as an effective lubricant. Herein, the friction between a 440 C stainless steel (SS) ball and a 440 C stainless steel (SS) plate in water lubrication could be reduced by as much as 6-times by coating the ball with reduced graphene oxide (rGO). The friction coefficient with rGO coated ball in water lubrication was comparable to the value obtained with the uncoated ball in oil lubrication. Moreover, the wear rate of the SS plate slid against the rGO coated ball in water lubrication was 3-times lower than that of the SS plate slid against the uncoated ball in oil lubrication. These results clearly demonstrated that water can be effectively utilized as a lubricant instead of oil to lower the friction and wear of SS components by coating one side with rGO. Implementation of this technology in mechanical systems is expected to aid in significant reduction of environmental pollution caused by the extensive use of oil lubricants.Keywords
This publication has 43 references indexed in Scilit:
- Low-Friction Characteristics of Nanostructured Surfaces on Silicon Carbide for Water-Lubricated SealsTribology Letters, 2013
- Microstructure and water-lubricated friction and wear properties of CrN(C) coatings with different carbon contentsApplied Surface Science, 2013
- Encyclopedia of TribologyPublished by Springer Science and Business Media LLC ,2013
- Influence of carbon content on the microstructure and tribological properties of TiN(C) coatings in water lubricationSurface and Coatings Technology, 2012
- Influence of Ti content on the structure and tribological properties of Ti-DLC coatings in water lubricationDiamond and Related Materials, 2012
- Improved Tribological Behavior of DLC Films Under Water Lubrication by Surface TexturingTribology Letters, 2010
- Formation of lubrication film of diamond-like carbon films in water and air environments against stainless steel and Cr-plated ballsDiamond and Related Materials, 2007
- Low-friction behaviour of diamond-like carbon films in a water environmentDiamond and Related Materials, 2006
- Effect of hydrogenated DLC coating hardness on the tribological properties under water lubricationTribology International, 2006
- Structural analysis of (Cr1−xSix)N coatings and tribological property in water environmentSurface and Coatings Technology, 2005