Ultralow friction behaviour of B4C-BN-MeO composite ceramic coatings deposited on steel

Kharanzhevskiy, E. V.; Ipatov, A. G.; Krivilyov, M. D.; Makarov, A. V.; Гильмутдинов, Ф. З.; Волкова, Е. Г.

doi:10.1016/j.surfcoat.2020.125664

Cited by 19 publications

(10 citation statements)

References 18 publications

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“…[9][10][11] Iyer et al [12] achieved a polymer nanocomposite and found that about 7% nano-hydroxyapatite improved the mechanical, thermal and biocompatibility, and carbon nanofibers could enhance the mechanical compressive strength. Kharanzhevskiy et al [13] synthesized h-BN based ceramic coating via high-energy laser melting, and they found that low friction behavior had been strengthened due to the formation of boron-oxygen bonds.…”

Section: Introductionmentioning

confidence: 99%

The role of graphene nanoplatelets in the friction reducing process of polymer

et al. 2022

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Controlling unabridged graphene-lubricated layers and extending their last times can extend the service life of polymer moving components. The friction reduction behaviors of graphene nanoplatelets (GNP) on the tribology performances of high-density polyethylene (HDPE) were studied based on friction experiments. The mechanical properties, coefficient of friction (COF), surface topography, tribo-layers wear synthetically charactered to analyses the friction reducing processes. The results showed that the GNP presented a limited friction reduction to HDPE, and it could be controlled by the mass contents of GNP, load and speed. The proper content of graphene maintained the effective GNP tribo-layers for a long time and led to a long duration of friction reduction. Decreasing load or speed weakened the wear processes, which was useful for maintaining the effective GNP tribo-layers for a long time, and reduced the COF. The knowledge will provide experimental support for improving the selflubricating performance and abrasiveness of polymers.

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Section: Introductionmentioning

confidence: 99%

The role of graphene nanoplatelets in the friction reducing process of polymer

et al. 2022

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“…Test samples were manufactured with varying concentrations of bismuth oxide, dispersed as nanoparticles in the surface layers. A distinctive methodology known as "high-energy, short-pulse laser melting" [13,14] was employed to integrate bismuth oxide into the steel matrix as nanoparticles. A distinguishing characteristic of this technology is the ultra-high rates of thermal cycling, capable of generating highly non-equilibrium states of materials, such as amorphous or nanocrystalline phases [25,26].…”

Section: Methodsmentioning

confidence: 99%

“…An exceptional feature of the technique is a high level of adhesion between the substrate and ceramic coatings [13,14].…”

Section: Methodsmentioning

confidence: 99%

“…The pulse energy was set at 1 mJ at a frequency of 20 kHz, delivering an instantaneous power of 25 kW. With a laser beam focus diameter of 30 µm, the resulting instantaneous power density was measured to be 3.5×10 13 W/m 2 . Laser processing was conducted by scanning the laser beam across the cylindrical surface of a disk.…”

Section: Methodsmentioning

confidence: 99%

“…For instance, coatings based on boron carbides exhibit a transition to low friction only under high normal loads and high sliding rates when temperatures exceed 160°C. In this case, the low coe cient of friction (COF) is linked to the formation of B-O-H bonds, resulting from the interaction of boron carbide in the coating with oxygen and moisture in the ambient air [13,14]. In another example, during the wear tests of nickel-zirconia coatings, intense sliding friction aids the creation of a third body via mutual mass transport from both surfaces in contact.…”

Section: Introductionmentioning

confidence: 99%

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Towards eliminating friction and wear in plain bearings operating without lubrication

Kharanzhevskiy,

Ipatov,

Makarov

et al. 2023

Preprint

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Plain bearings, owing to their versatility and simplicity, are extensively utilized in engineering design across a variety of industries involving moving parts. Lubrication is vital to the functioning of these bearings so their usage is inhibited under dynamic load conditions or at elevated or reduced temperatures due to this dependency on lubrication. This study introduces an innovative method to significantly mitigate friction and wear in plain bearings operating without lubrication. The plain bearings were constructed from steel-bronze pairs, where the steel shafts were alloyed with bismuth oxide via short-pulse laser treatment. To incorporate the bismuth oxide into the surface layers of the steel, MnO2 was utilized as a carrier. Insights from transmission electron microscopy and X-ray photoelectron spectroscopy exposed a highly non-equilibrium state of matter, which is unattainable through conventional engineering methods. The tribological performance of the modified steel disks was assessed via a block-on-ring sliding test, demonstrating superior wear and friction performance without lubrication, and an ultra-low coefficient of friction. Remarkably, the modified friction pairs remained functional after 200 km of linear sliding at a load of 250 N (12.5 MPa) and a sliding speed of 9 m/s. To substantiate the technique's viability, we tested the performance of an internal combustion engine turbocharger fitted with a modified steel shaft. The turbocharger's performance validated the long-term effectiveness of the steel-bronze coupling operating without lubrication at 75,000 rpm. The simplicity and resilience of this technique for modifying steel-bronze pairs offer a ground-breaking and promising approach for a wide range of applications.

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Numerical simulation and experimental investigation on the friction reduction properties of ZrO$$_2$$ by laser surface texture

Han,

Ma,

et al. 2024

Appl. Phys. A

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Ultralow friction behaviour of B4C-BN-MeO composite ceramic coatings deposited on steel

Cited by 19 publications

References 18 publications

The role of graphene nanoplatelets in the friction reducing process of polymer

The role of graphene nanoplatelets in the friction reducing process of polymer

Towards eliminating friction and wear in plain bearings operating without lubrication

Numerical simulation and experimental investigation on the friction reduction properties of ZrO$$_2$$ by laser surface texture

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