Three-body abrasive wear in the presence of inorganic fullerene-like tungsten disulfide and ionic liquid containing alkanolamines and phosphates

Asif, Ayesha; Zheng, Yong; Rahman, Saifur; Amiri, Ahmad; Jun, Hyun Jo; Polycarpou, Andreas A.

doi:10.1016/j.wear.2021.204073

Cited by 7 publications

(6 citation statements)

References 19 publications

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“…With regard to the effects of viscosity, all of the fluids used herein are water with small (<3 wt %) additive content, which does not impact the viscosity significantly. In a previous study, the viscosity measured for AA-IL and IF-WS 2 in DIW had the same order of magnitude overall, and there was no significant effect of the viscosity on the friction behavior at this particular additive content . The AA-IL in DIW had lower viscosity than DIW, while the IF-WS 2 in DIW had higher viscosity but the order of viscosity was the same.…”

Section: Resultsmentioning

confidence: 63%

“…In a previous study, the viscosity measured for AA-IL and IF-WS 2 in DIW had the same order of magnitude overall, and there was no significant effect of the viscosity on the friction behavior at this particular additive content. 31 The AA-IL in DIW had lower viscosity than DIW, while the IF-WS 2 in DIW had higher viscosity but the order of viscosity was the same. Provided that the lubrication regime is predominantly in the boundary and mixed regimes, then the AA-IL additive solution with lower viscosity than water should have increased the COF, while the IF-WS 2 nanoparticles giving higher viscosity in water should have reduced the friction.…”

Section: Resultsmentioning

confidence: 99%

“…The solutions were kept under constant stirring until used inside the experimental chamber. The IF-WS 2 nanoparticles had a size range of 70–210 nm obtained through AFM scans. This includes a range of particle sizes, where larger particles settle faster and smaller particles remain suspended for longer durations .…”

Section: Materials and Methodsmentioning

confidence: 99%

“…For the IF-WS 2 nanoparticles, the literature reports an optimum concentration value of 0.5 wt % for titanium dioxide to reduce friction and provide effective lubrication; hence, the same concentration (0.5 wt %) was selected for IF-WS 2 . This concentration of IF-WS 2 nanoparticles has been tested previously and found to be sufficient in a study of abrasive particles . The pin and disk were made out of AISI514 quenched steel with low carbon and chromium content, making it similar in composition and microstructure to steel used for making casing pipes in the coil tubing process.…”

Section: Materials and Methodsmentioning

confidence: 99%

“…19 This concentration of IF-WS 2 nanoparticles has been tested previously and found to be sufficient in a study of abrasive particles. 31 The pin and disk were made out of AISI514 quenched steel with low carbon and chromium content, making it similar in composition and microstructure to steel used for making casing pipes in the coil tubing process. Low carbon steel with good mechanical properties is typically used in coil tubing.…”

Section: Materials and Lubricant Preparationmentioning

confidence: 99%

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Impact of Ionic Liquid Additives and Inorganic Fullerene-Like Tungsten Disulfide on Friction and Wear under Aqueous Environments

et al. 2022

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Aqueous lubricants are gaining attention due to significant advantages such as being environmentally friendly, tunable, and thermally stable. The oil and gas industry can use such additives to utilize in water-based fluids for applications where small sliding velocities and large lateral forces require enhanced lubrication. This investigation aims to compare the effects of two different additives: (i) inorganic fullerene-like tungsten disulfide (IF-WS2) and (ii) an alkanolamine ionic liquid denoted as AA-IL. Both additives were paired with three different base fluids, deionized water (DIW), aqueous NaCl, and aqueous CaCl2, to measure the impact on fluids commonly utilized in the field. The addition of IF-WS2 to all three solutions resulted in a 30–60% decrease in the coefficient of friction (COF) and wear. Surface analysis by X-ray photoelectron spectroscopy (XPS) and energy-dispersive X-ray spectroscopy (EDS) showed that the formation of a tribofilm (tungsten oxide layer) is primarily responsible for tribological improvements. The AA-IL did not show evidence of any chemical interaction. Instead, a physically bonded film of the AA-IL on the steel surface enabled the improved COF (40–50% reduction) and wear response. Both additives are effective in very small amounts and provide excellent wear and friction reduction properties.

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Section: Resultsmentioning

confidence: 63%

Section: Resultsmentioning

confidence: 99%

Section: Materials and Methodsmentioning

confidence: 99%

Section: Materials and Methodsmentioning

confidence: 99%

Section: Materials and Lubricant Preparationmentioning

confidence: 99%

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