Friction and Wear of Cr-O-N Coatings Characterized by Atomic Force Microscopy

Кузнецова, Т. А.; Lapitskaya, V. A.; Чижик, С. А.; Куприн, А.С.; Tolmachova, G.N.; Овчаренко, В.Д.; Gilewicz, A.; Łupicka, O.; Warcholiński, B.

doi:10.24874/ti.2019.41.02.13

Cited by 5 publications

(3 citation statements)

References 27 publications

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“…Research by Noel et al 69 explored the wear of copper-based composites at the nano-scale using AFM and found that for higher loads in the region of tens of nano-newtons, ‘Archard-like’ wear was observed. Similarly, Kuznetsova et al 70 used AFM to examine the friction and wear of Cr–O–N coatings at the nano-scale under similar loads to Noel et al and made similar observations. Considering similarities between these works and the work presented in the current paper, it is believed that the Archard law would be one of applicable methods to conduct a multi-scale transient wear prediction as further study.…”

Section: Resultsmentioning

confidence: 77%

“…Similarly, Kuznetsova et al 70 used AFM to examine the friction and wear of Cr-O-N coatings at the nanoscale under similar loads to Noel et al and made similar observations. Considering similarities between these works and the work presented in the current paper, it is believed that the Archard law would be one of applicable methods to conduct a multi-scale transient wear prediction as further study.…”

Section: Wear Resistancementioning

confidence: 76%

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Tribological enhancement of piston skirt conjunction using graphene-based coatings

Hildyard

Bewsher

Walker

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part D:

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Piston skirt to cylinder liner conjunctions are amongst the major contributors to frictional power losses of Internal Combustion Engines (ICEs). Efforts have been made to mitigate the frictional losses of these conjunctions by incorporating different technologies such as texturing and application of novel coatings. Any potential technology needs to provide adequate wear resistance as well as frictional reduction in order to be practically applicable. In this paper, the piston skirt of a gasoline engine is deposited by three different variants of Graphene Oxide (GO) coatings deposited using an Electro-Phoretic Deposition (EPD) method. Their tribological performance is benchmarked against uncoated steel and graphite coated aluminium skirts. These coatings are experimentally characterised in terms of asperity level friction, topography and wear resistance. The conjunction and system level performance of these coatings considering both boundary and viscous friction and system dynamics are then evaluated using a multi-physics tribo-dynamic model. Results show that by incorporating an appropriate GO coating, the frictional power loss of the piston skirt to cylinder liner conjunction can be improved by up to 14% whilst maintaining the wear resistance of the coating at the level of an uncoated steel surface.

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Section: Resultsmentioning

confidence: 77%

Section: Wear Resistancementioning

confidence: 76%

Tribological enhancement of piston skirt conjunction using graphene-based coatings

Hildyard

Bewsher

Walker

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part D:

View full text Add to dashboard Cite

show abstract

“…The volume of wear V was estimated by the cross-sectional area and the perimeter of the wear track [ 47 ].…”

Section: Methodsmentioning

confidence: 99%

Nanomechanical and Nanotribological Properties of Nanostructured Coatings of Tantalum and Its Compounds on Steel Substrates

et al. 2021

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The present paper addresses the problem of identification of microstructural, nanomechanical, and tribological properties of thin films of tantalum (Ta) and its compounds deposited on stainless steel substrates by direct current magnetron sputtering. The compositions of the obtained nanostructured films were determined by energy dispersive spectroscopy. Surface morphology was investigated using atomic force microscopy (AFM). The coatings were found to be homogeneous and have low roughness values (<10 nm). The values of microhardness and elastic modulus were obtained by means of nanoindentation. Elastic modulus values for all the coatings remained unchanged with different atomic percentage of tantalum in the films. The values of microhardness of the tantalum films were increased after incorporation of the oxygen and nitrogen atoms into the crystal lattice of the coatings. The coefficient of friction, CoF, was determined by the AFM method in the “sliding” and “plowing” modes. Deposition of the coatings on the substrates led to a decrease of CoF for the coating-substrate system compared to the substrates; thus, the final product utilizing such a coating will presumably have a longer service life. The tantalum nitride films were characterized by the smallest values of CoF and specific volumetric wear.

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Structural, mechanical and tribological properties of Cr-V-N coatings deposited by cathodic arc evaporation

Куприн

Овчаренко

Gilewicz

et al. 2022

Tribology International

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Friction and Wear of Cr-O-N Coatings Characterized by Atomic Force Microscopy

Cited by 5 publications

References 27 publications

Tribological enhancement of piston skirt conjunction using graphene-based coatings

Tribological enhancement of piston skirt conjunction using graphene-based coatings

Nanomechanical and Nanotribological Properties of Nanostructured Coatings of Tantalum and Its Compounds on Steel Substrates

Structural, mechanical and tribological properties of Cr-V-N coatings deposited by cathodic arc evaporation

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