Investigation of the tribology behaviour of the graphene nanosheets as oil additives on textured alloy cast iron surface

Abstract

Investigation of the tribology behaviour of the graphene nanosheets as oil additives on textured alloy cast iron surface, Applied Surface Science http://dx.2 Graphical abstract 3 HighlightsThe tribological behavior of graphene nanosheets as lubricating oil additives on textured alloy cast iron surface were investigated using an UMT-2 ball-on-plate tribotester.A combined effect on reducing the friction and wear between graphene nanosheets additives and laser surface texturing was revealed -induce graphitizing transformation and the storing of GNS additives of the micro-dimples.EDX and Raman results showed that the graphene layers sheared at the sliding contact interfaces, and form a protective film, which is closely related with the graphene structures and surface texture patterns.4 Abstract: Tribological properties of graphene nanosheets (GNS) as lubricating oil additives on textured surfaces were investigated using a UMT-2 tribotester. The lubricating fluids keeping a constant temperature of 100°C were applied to a GCr15 steel ball and an RTCr2 alloy cast iron plate with various texture designs (original surface, dimple density of 22.1%, 19.6% and 44.2%). The oil with GNS adding showed good tribological properties (wear reduced 50%), especially on the textured surfaces (the reduction in wear was high at over 90%). A combined effect between GNS additives and laser surface texturing (LST) was revealed, which is not a simple superposition of the two factors mentioned. A mechanism is proposed to explain for these results -the graphene layers sheared at the sliding contact interfaces, and form a protective film, which is closely related with the GNS structures and surface texture patterns

Tribological Characterisation of Graphene Oxide as Lubricant Additive on Hypereutectic Al-25Si/Steel Tribopair

“…Fan and Wang (29) reported the improvement in friction due to high-performance lubricant additives based on modified graphene oxide by ionic liquids. In addition, Kinoshita,et al (30) and Zheng, et al (31) investigated monolayer graphene oxide (GO) sheets as waterbased lubricant additives and as oil additives on a stainless steel flat plate and cast iron plate and found dramatic reductions in friction and wear properties. In addition, Senatore, et al (32) and Sarno,et al (33) studied the effect of GO sheets as additives in oil-based lubricants.…”

Graphene-Ionic Liquid Thin Film Nanolubricant

“…Among the wide spectrum of potential applications of graphene and graphene derivatives, such as graphene oxide (GO), there has been a recent interest in their use as surface modifiers and lubricant additives [7,8]. The chemical nature of ILs is an effective instrument for the surface modification and/or functionalization of nanoparticles and carbon nanophases [9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24].…”

Research Progress in Application of 2D Materials in Liquid-Phase Lubrication System

“…Thus, 2D materials are selected as high-performance and environmentally friendly lubricants [45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60]. …”