Surfactant-assisted electrodeposition of Au–Co/WS2 self-lubricating coating from WS2 suspended cyanide electrolyte

Chen, Zhaoxi; Wagner, Julien; Turq, Viviane; Hillairet, J.; Taberna, Pierre‐Louis; Laloo, Raphaël; Duluard, Sandrine Nathalie; Bernard, Jean-Michel; Song, Yuntao; Yang, Qi; Lu, Kun; Cheng, Yong

doi:10.1016/j.jallcom.2020.154585

Cited by 16 publications

(5 citation statements)

References 47 publications

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“…At temperatures of 400 °C or above, the sliding surface showed the existence of both CaF 2 and Au, pointing to a synergetic solid-lubrication phenomenon. The use of Au in conjunction with other solid lubricants to enlarge the lubrication temperature range has also been reported in [ 34 , 35 ]. However, due to Au’s high cost, its use is limited in large-scale fields.…”

Section: Potential High-temperature Solid-lubricantsmentioning

confidence: 98%

Solid Lubrication at High-Temperatures—A Review

et al. 2022

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Understanding the complex nature of wear behavior of materials at high-temperature is of fundamental importance for several engineering applications, including metal processing (cutting, forming, forging), internal combustion engines, etc. At high temperatures (up to 1000 °C), the material removal is majorly governed by the changes in surface reactivity and wear mechanisms. The use of lubricants to minimize friction, wear and flash temperature to prevent seizing is a common approach in engine tribology. However, the degradation of conventional liquid-based lubricants at temperatures beyond 300 °C, in addition to its harmful effects on human and environmental health, is deeply concerning. Solid lubricants are a group of compounds exploiting the benefit of wear diminishing mechanisms over a wide range of operating temperatures. The materials incorporated with solid lubricants are herein called ‘self-lubricating’ materials. Moreover, the possibility to omit the use of conventional liquid-based lubricants is perceived. The objective of the present paper is to review the current state-of-the-art in solid-lubricating materials operating under dry wear conditions. By opening with a brief summary of the understanding of solid lubrication at a high temperature, the article initially describes the recent developments in the field. The mechanisms of formation and the nature of tribo-films (or layers) during high-temperature wear are discussed in detail. The trends and ways of further development of the solid-lubricating materials and their future evolutions are identified.

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Section: Potential High-temperature Solid-lubricantsmentioning

confidence: 98%

Solid Lubrication at High-Temperatures—A Review

et al. 2022

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“…The objective of the multi-objective optimization of the process carried out in this study was to obtain the best combination of magnetic-thermal-assisted cladding processes to prepare self-lubricating coatings with good formability. The requirement of good formability of the coating is to ensure the minimum dilution rate, minimum porosity, and maximum microhardness within the specified constraints; the optimization model, i.e., the fitness function of MOPSO is shown in (14), Equation (15), and Equation ( 16), respectively, and the constraints of the model are shown in Equation ( 21).…”

Section: Multi-objective Process Optimizationmentioning

confidence: 99%

“…In recent years, scholars have made many attempts to prepare nickel-based selflubricating coatings by using different surface strengthening techniques, such as thermal spraying [12], sintering [13], electrodeposition [14], and laser cladding [15,16]. Among these preparation techniques, laser cladding technology provides an effective solution to realize the preparation of functional coatings owing to its advantages such as fast cooling rate, high efficiency, and high automation [17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Co-Optimization of the Preparation Process of Ni-Based Self-Lubricating Coatings by Magneto-Thermal-Assisted Laser Cladding

Gong,

Shu,

Zhang

et al. 2023

Coatings

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To reduce the metallurgical defects that are prone to occur in the preparation of nickel-based self-lubricating coatings, a method of process co-optimization for magneto-thermal-assisted laser cladding of nickel-based self-lubricating coatings is proposed in this paper. The laser energy density, preheating temperature, and electromagnetic intensity are selected as input factors; the prediction models of coating dilution rate, porosity and microhardness are established by the CCD test method; the interactive effects of the magnetic-thermal-assisted cladding process on the coating response are analyzed, and the optimal process parameter combinations are obtained by using the optimization method of MOPSO-AE-TOPSIS. Finally, the coatings under the parameters are successfully prepared. The results show that the optimal process parameter combinations obtained are laser energy density of 56.8 J/mm2, preheating temperature of 350 °C, electromagnetic intensity of 49.1 mT, and the error of the experimental results with this parameter is less than 3% from the algorithm optimization results. When the microstructure of unassisted and magneto-thermal-assisted fields are analyzed by comparison, it is found that the tissues are more homogeneous and finer, and the distribution of graphite is more homogeneous, which proves the effectiveness of the optimization method.

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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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Surfactant-assisted electrodeposition of Au–Co/WS2 self-lubricating coating from WS2 suspended cyanide electrolyte

Cited by 16 publications

References 47 publications

Solid Lubrication at High-Temperatures—A Review

Solid Lubrication at High-Temperatures—A Review

Co-Optimization of the Preparation Process of Ni-Based Self-Lubricating Coatings by Magneto-Thermal-Assisted Laser Cladding

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

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