Lubrication mechanisms of C‐MoS2‐Fe2O3 (Fe3O4) nano‐composite lubricants at the rubbing interfaces of non‐copper coated solid wires against the contact tube

Li, Z.X.; Wu, Qian; Li, G.D.; Li, H.; Li, H.J.; Zhang, T.L.; Kim, H.J.; Tillmann, Wolfgang

doi:10.1002/mawe.201700228

Cited by 9 publications

(5 citation statements)

References 20 publications

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“…Many research groups have mixed different kinds of nanoparticles with the base lubricant to research their effects on lubrication performance [1]. The classification of nanoparticles includes metals [2], metallic oxides [3][4][5], non-metallic oxides, sulphides, composites [6][7][8], fullerene and carbon materials [9]. At the beginning of this century, copper nanoparticles were employed as an additive for improving the tribological properties of lubricants.…”

Section: Introductionmentioning

confidence: 99%

Friction and Wear Characteristics of Fe3O4 Nano-Additive Lubricant in Micro-Rolling

Zhu,

Zhang,

et al. 2023

Lubricants

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As nanotechnology has developed, some nano-additives have been employed to improve the performance of lubricants. The mechanisms of nano-additives still need to be investigated. The wear characteristics of Fe3O4 nano-additive lubricant were investigated in this study. Different diameters of Fe3O4 nanoparticles were mixed in basic oil using an ultrasonic mixer. The new lubricant was used for analytical tests at room temperature. The results showed that nano-lubricants with 20 nm nanoparticles increase the oil film strength. The coefficient of friction was reduced when 20 nm diameter 8 wt% Fe3O4 nanoparticles were mixed with lubricants. The effect of surfactants and nanoparticles in the base oil was measured using numerical simulation methods. The adsorption capacity of the lubricants was significantly improved by Fe3O4 nanoparticles, particularly when looking at the small relative atomic mass of the metal. The 8 wt% Fe3O4 lubricant exhibited optimal tribological properties when applied in micro-rolling tests. The results showed that the surface quality of the rolled samples was significantly improved, and the rolling force was dramatically reduced. At the same time, the shapes of the samples were effectively controlled in the rolling process. Therefore, Fe3O4 nanoparticles can improve the friction and wear characteristics of lubricants.

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Section: Introductionmentioning

confidence: 99%

Friction and Wear Characteristics of Fe3O4 Nano-Additive Lubricant in Micro-Rolling

Zhu,

Zhang,

et al. 2023

Lubricants

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“…Cr coating caused arc length shortening and the tensile strength increased by 44%, and the fatigue strength of the weld metal with Cr and Ti coatings also significantly increased. Li et al [8] found that using a mixture of nano-graphite, MoS 2 and Fe 3 O 4 as the surface coating of the non-copper coated solid wires can significantly reduce the wear of the contact tube at room temperature, and the mass loss rate of the contact tube is as low as 0.35%.…”

Section: Introductionmentioning

confidence: 99%

High Temperature Tribological Performance of Steel/Copper Friction Pairs Lubricated with a Modified C-WS2-(Fe3O4 + TiN) Nanoadditives in Non-Copper Coated Solid Wires

Zhu

Chen

et al. 2022

Nanomaterials

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In this study, four kinds of nanoparticles, graphite, WS2, Fe3O4, and TiN, were used as lubricating additives for steel/copper friction pairs to solve the problem of welding contact tube wear with non-copper-coated solid wire at high temperature. The single and composite nanoparticles have excellent dispersion stability in absolute ethanol under the action of the compound surfactant NaSTA + OA + PVP (i.e., sodium stearate, oleic acid, and polyvinylpyrrolidone). The tribological test results showed that the maximum decrement, with reference to the average coefficient of friction and wear volumes, were measured with nanoparticle concentration in 1:1:1 ratio at 300 °C. Compared with dry friction, the average friction coefficient and wear volume are reduced by 74.3% and 84.8%, respectively, which may be attributed to the formation of a stable tribo-film mainly composed of C–O, Fe2O3, WO3, TiO2, TiNxOy composite on the worn surface. Therefore, it is considered that the combined lubrication effects of the ball-bearing effect, repairing of worn surfaces, and the tribo-film resulted in the lowest friction and wear.

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“…In addition, the temperature is an important factor that affects the performance of the surface coating of the welding wire and the wear of the contact tube [8,9]. Li et al [10] found that using the mixture of nano-graphite, MoS 2 and Fe 3 O 4 as the surface coating of the non-copper coated solid wires can signi cantly reduce the wear of the contact tube at room temperature, and the mass loss rate of the contact tube is as low as 0.35%. Therefore, the study of the friction and wear of nanoparticles in steel/copper friction pair at high temperature has important theoretical signi cance for reducing the wear of copper contact tube and improving the welding performance of steel non-copper coated solid wires.…”

Section: Introductionmentioning

confidence: 99%

High Temperature Tribological Performance of Steel/Copper Friction Pairs Lubricated With a Modified C-WS2-(Fe3O4+TiN) Nanoadditives in Non-Copper Coated Solid Wires

Zhu

et al. 2021

Preprint

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In this study, four kinds of nanoparticles: graphite, WS2, Fe3O4 and TiN were used as lubricating additives for steel/copper friction pairs to solve the problem of welding contact tube wear with non-copper-coated solid wire at high temperature. The single and composite nanoparticles have excellent dispersion stability in absolute ethanol under the action of the compound surfactant NaSTA+OA+PVP. The tribological test results showed that the maximum decrement with reference to the average coefficient of friction and wear volumes were measured with nanoparticle concentration in 1:1:1 ratio at 300℃. Compared with dry friction, the average friction coefficient and wear volume are reduced by 74.3% and 84.8%, respectively, which may be attributed to the formation of a stable tribo-film mainly composed of C-O, Fe2O3, WO3, TiO2, TiNxOy composite on the worn surface. Therefore, it is considered that the combined lubrication effects of the ball-bearing effect, repairing of worn surfaces and the tribo-film resulted in the lowest friction and wear.

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Lubrication mechanisms of C‐MoS₂‐Fe₂O₃ (Fe₃O₄) nano‐composite lubricants at the rubbing interfaces of non‐copper coated solid wires against the contact tube

Cited by 9 publications

References 20 publications

Friction and Wear Characteristics of Fe3O4 Nano-Additive Lubricant in Micro-Rolling

Friction and Wear Characteristics of Fe3O4 Nano-Additive Lubricant in Micro-Rolling

High Temperature Tribological Performance of Steel/Copper Friction Pairs Lubricated with a Modified C-WS2-(Fe3O4 + TiN) Nanoadditives in Non-Copper Coated Solid Wires

High Temperature Tribological Performance of Steel/Copper Friction Pairs Lubricated With a Modified C-WS2-(Fe3O4+TiN) Nanoadditives in Non-Copper Coated Solid Wires

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