Enhancement of frictional properties of Ni-MoS2 self-lubricating composite coatings by microgroove arrays

Yao, Yuhang; Wu, Yucheng; Zhang, Zhaoyang; Zhu, Hao; Hu, Mengnan; Xu, Kun; Liu, Yang

doi:10.1016/j.apsusc.2022.154635

Cited by 22 publications

(4 citation statements)

References 40 publications

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“…In addition, the abrasive tip is prone to adhesive wear and material detachment; which plowing and pile-up of stacked atomic is leading to high friction. [29,30]…”

Section: Resultsmentioning

confidence: 99%

Interfacial and Tribological Characteristics of MoS₂ on Ni Under Nanoindentation and Nanoscratch

Huang

Lai

Fang

et al. 2023

Physica Status Solidi (b)

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With the rapid development of science and technology, microscale machining has become an important topic, and lubricants play a vital role in machining. Solid lubricants are suitable for a variety of precision machining better than liquid lubricants. Molybdenum disulfide (MoS2) in 2D‐layered nanomaterials is a promising candidate for use as a solid lubricant. Herein, molecular dynamics (MD) simulations are performed to study the effects of scratch depth, speed, and temperature on the mechanical properties of Ni‐based MoS2 thin films. The results show that atom stacking and extrusion around the abrasive tip increase the friction coefficient in the indentation and scratch phases. The higher value of scratch depths, speeds, and temperatures can lead to higher friction coefficients and wider dislocation distributions. Moreover, Shockley dislocation appears in all cases at all effects, and the total dislocation length increases with the higher value of scratch depths, speeds, and temperatures.

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“…In addition, the abrasive tip is prone to adhesive wear and material detachment; which plowing and pile-up of stacked atomic is leading to high friction. [29,30]…”

Section: Resultsmentioning

confidence: 99%

Interfacial and Tribological Characteristics of MoS₂ on Ni Under Nanoindentation and Nanoscratch

Huang

Lai

Fang

et al. 2023

Physica Status Solidi (b)

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“…In the literature, there is information on the production of the transition metal dichalcogenides by the methods of laser cladding [18], electrochemical deposition [19], thermal spraying [20], and electrospark alloying (ESA) [21,22].…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Structure and Properties of MoS2 Coatings Obtained by Electrospark Alloying

Haponova,

Tarelnyk,

Mościcki

et al. 2024

Coatings

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Electrospark coatings alloyed with MoS2 have been studied. The coatings were obtained by the following two strategies: the first consisted of pre-applying molybdenum disulfide to the treated surface and alloying with a molybdenum electrode (Mo + MoS2 coating); the second consisted of applying a paste with a sulfur content of 33.3% to the treated surface and alloying with a molybdenum electrode (Mo + S coating). The structure, phase composition, and tribological properties of the coatings were investigated. The coatings have a complex structure consisting of an upper soft layer, a hardened white layer, a diffusion zone, and a substrate. Element analysis and cross-sectional hardness changes indicated that element diffusion occurred at the coating/substrate interface. The phase composition of the coatings is represented by BCC and FCC solid solutions on Fe, and MoS2 is also detected. In Mo + S coatings, the molybdenum disulfide on the surface is about 8%; in Mo + MoS2 coatings, it is 27%–46%. The obtained coatings show very good tribological properties compared to molybdenum ESA coatings. The frictional forces and coefficients are reduced by a factor of 10 and 40, depending on the test conditions.

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“…Electrochemical depostion [8], electrodeposition [9], thermal spraying [10], laser cladding [11] and electrospark deposition (ESD) [2,6,12] have been utilized to prepare coatings with transition metal dichalcogenides. Compared with the other four techniques, the coatings prepared by ESD possess much stronger metallurgical bonding with the substrate, and moreover the substrate has no distortion or metallurgical change due to low heat effect during ESD process.…”

Section: Introductionmentioning

confidence: 99%

Influence of deposition voltage on tribological properties of W-WS2 coatings deposited by electrospark deposition

Liu,

Guo,

et al. 2023

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Electrospark deposition coatings were prepared with different deposition voltage on CrNi3MoVA steel substrates by using a W-WS2 sintered electrode and their tribological properties were investigated. The microhardness, roughness and tribological properties of the coatings were tested by using Vickers hardness tester, confocal laser scanning microscope and tribometer, and the morphologies, composition and phase structure were obtained by utilizing scanning electron microscopy (SEM), energy dispersive X-ray spectrum (EDS) and X-ray diffraction(XRD). The results showed that with the increase of deposition voltage, the hardness and roughness of the coatings increase. The coatings remarkably increase the tribological properties of CrNi3MoVA steel, and among the three coatings deposited at 40 V, 60 V and 80 V, the coating deposited at 60 V has the smallest friction coefficient and the best wear resistance.

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Enhancement of frictional properties of Ni-MoS2 self-lubricating composite coatings by microgroove arrays

Cited by 22 publications

References 40 publications

Interfacial and Tribological Characteristics of MoS₂ on Ni Under Nanoindentation and Nanoscratch

Interfacial and Tribological Characteristics of MoS₂ on Ni Under Nanoindentation and Nanoscratch

Investigation of the Structure and Properties of MoS2 Coatings Obtained by Electrospark Alloying

Influence of deposition voltage on tribological properties of W-WS2 coatings deposited by electrospark deposition

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Enhancement of frictional properties of Ni-MoS2 self-lubricating composite coatings by microgroove arrays

Cited by 22 publications

References 40 publications

Interfacial and Tribological Characteristics of MoS2 on Ni Under Nanoindentation and Nanoscratch

Interfacial and Tribological Characteristics of MoS2 on Ni Under Nanoindentation and Nanoscratch

Investigation of the Structure and Properties of MoS2 Coatings Obtained by Electrospark Alloying

Influence of deposition voltage on tribological properties of W-WS2 coatings deposited by electrospark deposition

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Product

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Interfacial and Tribological Characteristics of MoS₂ on Ni Under Nanoindentation and Nanoscratch

Interfacial and Tribological Characteristics of MoS₂ on Ni Under Nanoindentation and Nanoscratch