Toward resolving anxiety about the accelerated corrosive wear of steel lubricated with the fluorine-containing ionic liquids at elevated temperature

Itoga, Mitsuki; Aoki, Saiko; Suzuki, Akihito; Yoshida, Yukio; Fujinami, Yukitoshi; Masuko, Masabumi

doi:10.1016/j.triboint.2015.01.008

Cited by 25 publications

(15 citation statements)

References 34 publications

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“…One of the main concerns regarding the use of ILs as lubricant additives is their ionic nature, which can result in corrosion and tribocorrosion of metals. 18,19 This problem can be addressed by choosing the materials with the right corrosion properties or by using coatings, such as ceramics or DLCs.…”

Section: Introductionmentioning

confidence: 99%

Triboelectrochemical friction control of W- and Ag-doped DLC coatings in water–glycol with ionic liquids as lubricant additives

et al. 2022

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Section: Introductionmentioning

confidence: 99%

Triboelectrochemical friction control of W- and Ag-doped DLC coatings in water–glycol with ionic liquids as lubricant additives

et al. 2022

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“…Traditional IL lubricating additives, containing phosphorus, sulfur and halogen elements, possess excellent tribological properties and have been studied by many scientists (Ye et al , 2001; Ye et al , 2002; Mordukhovich et al , 2012; Roache et al , 2021; Tsunashima et al , 2011). For instance, bis(trifluoromethyl sulfonyl) imide and hexafluorophosphate possess remarkable antiwear and friction reducing properties when act as the anion of IL (Sanghi et al , 2012; Itoga et al , 2015; Hernández et al , 2016) . However, the halogen-containing ILs will corrode steel surface and pollute the air by reacting with water to generate acid halides (Wasserscheid et al , 2002).…”

Section: Introductionmentioning

confidence: 99%

Frictional evaluation of halogen-free ionic liquids with low corrosion degree and high decomposition temperature on steel surface

Wang

Gao

Zang

et al. 2022

ILT

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Purpose The purpose of this paper is to investigate the tribological properties, antiwear mechanism and anticorrosion properties of two novel halogen-free borate ionic liquids (ILs) in 500 N base oil. Design/methodology/approach Different qualities of borate ILs were added to 500 N, and their tribological properties were tested on a four-ball machine. The tribological properties of the additives were evaluated by measuring the wear scar diameter (WSD) and average coefficient of friction. The antiwear and antifriction mechanism of ILs was analyzed by energy dispersive spectroscopy (EDS) and X-ray photoelectron spectroscopy (XPS). Findings The corrosion degrees of the two borate ILs 1-butyl-3-octyl-imidazole bis(mandelato)-borate ([OBIM][BMB]) and 1-butyl-3-(3-methoxypropyl)-imidazole bis(mandelato)-borate ([MPBIM][BMB]) are 1b and 1a, respectively, suggesting that they both possess significant corrosion resistance and can effectively protect the steel surface. When the concentration of [OBIM][BMB] and [MPBIM][BMB] is 2.5 Wt.%, the friction coefficient of 500 N is reduced by 37.3% and 26.2%, respectively. According to the analysis of the thermo gravimetric analyzer curves, [OBIM][BMB] and [MPBIM][BMB] decomposed at 369.7°C and 374.3°C, respectively, indicate that two additives both can be applied in higher temperature condition. The results of XPS and scanning electron microscope (SEM) reveal that [OBIM][BMB] and [MPBIM][BMB] both can react with the steel surface, thereby forming chemical films composed of iron oxide, B2O3 and organic N-containing compounds. Originality/value Two new environmentally friendly borate ILs were synthesized and their tribological properties in 500 N base oil were investigated for the first time.

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“…García et al [27] compared the tribological behavior of [HEIM] [PF 6 ] ionic liquid versus a polyalfaolefin (PAO) base oil in steel-steel contact, finding that the protective layer of the absorbed IL film on the steel surface is responsible for the improved tribological behavior of the IL with respect to the PAO. Therefore, steel-steel contact has been the material pair most frequently used in the abovementioned studies, probably due to the widespread use of steel in industry [17,19,35,[61][62][63][64][65]. Liu et al [17] showed that ILs formed a FeF 2 and B 2 O 3 surface protective film which contributes to low friction and wear under steel-steel lubricated contact.…”

Section: Introductionmentioning

confidence: 99%

Friction, Wear and Corrosion Behavior of Environmentally-Friendly Fatty Acid Ionic Liquids

et al. 2020

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This research deals with the tribological behavior and corrosion performance of three novel fatty acid anion-based ionic liquids (FAILs): methyltrioctylammonium hexanoate ([N8,8,8,1][C6:0]), methyltrioctylammonium octadecanoate ([N8,8,8,1][C18:0]) and methyltrioctylammonium octadec-9-enoate ([N8,8,8,1][C18:1]), employed for the first time as neat lubricant with five different material pairs: steel–steel, steel–aluminum alloy, steel–bronze, steel–cast iron and steel–tungsten carbide. These novel substances were previously obtained from fatty acids via metathesis reactions, identified structurally via NMR (nuclear magnetic resonance) and FTIR (Fourier-transform infrared spectroscopy) techniques, and then characterized from a physicochemical (density, water solubility, viscosity, viscosity index and refractive index) and environmental (bacterial toxicity and biodegradability) points of view. The corrosion behavior of the three FAILs was studied by exposure at room temperature, while friction and wear tests were performed with a reciprocating ball-on-disc configuration. The main results and conclusions obtained were: (1) Corrosion in the presence of the three FAILs is observed only on the bronze surface; (2) All FAILs presented similar tribological behavior as lubricants for each tested material pair; (3) XPS (X-ray photoelectron spectroscopy) analysis indicated that the surface behavior of the three FAILs in each material pair was similar, with low chemical interaction with the surfaces.

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Toward resolving anxiety about the accelerated corrosive wear of steel lubricated with the fluorine-containing ionic liquids at elevated temperature

Cited by 25 publications

References 34 publications

Triboelectrochemical friction control of W- and Ag-doped DLC coatings in water–glycol with ionic liquids as lubricant additives

Triboelectrochemical friction control of W- and Ag-doped DLC coatings in water–glycol with ionic liquids as lubricant additives

Frictional evaluation of halogen-free ionic liquids with low corrosion degree and high decomposition temperature on steel surface

Friction, Wear and Corrosion Behavior of Environmentally-Friendly Fatty Acid Ionic Liquids

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