Tungsten carbide/diamond-like carbon multilayer coatings on steel for tribological applications

Rincon, Christopher; Zambrano, G.; Carvajal, Alexander Paz; Prieto, P.; Galindo, H.; Martínez, Elena; Lousa, A.; Esteve, J.

doi:10.1016/s0257-8972(01)01360-3

Cited by 78 publications

(34 citation statements)

References 17 publications

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“…Various modifications based on these coatings are already used in cold forming [3] and dry machining in combination with other coatings [4,5], as well as in other engineering applications [6][7][8]. A certain type of WC/C multilayer coating was designed especially for nanopositioning applications [9].…”

Section: Introductionmentioning

confidence: 99%

Friction and Wear Properties of WC/C Nano-Scale Multilayer Coatings on Technical Surfaces

et al. 2011

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This article reports on the tribological performance of a WC/C multilayer coating with a periodicity WC/C = 15/5 nm deposited on bearing steel substrates. These substrates were initially polished to achieve different RMS roughness values ranging from 15 to 900 nm. Tribological tests were performed using a precision reciprocating microtribometer under ambient conditions with a steel ball as a counter-sample. The worn sample surfaces were examined by scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDAX). The results indicate that the combined effects of the real contact area, lubricating effect of the coating, as well as the formation of a transfer layer and its subsequent removal, all contribute to a dependence of surface roughness on the coefficient of friction (CoF).

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Section: Introductionmentioning

confidence: 99%

Friction and Wear Properties of WC/C Nano-Scale Multilayer Coatings on Technical Surfaces

et al. 2011

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“…Besides a complex shape that often makes the forming tools difficult to coat, commercial hard ceramic coatings used in cutting tool applications often give a relatively high friction coefficient and a high tendency to galling when in contact with soft metals [3,10,11]. With the introduction of carbon-based coatings such as diamond and diamond like carbon (DLC), which show high wear resistance and excellent frictional properties [12][13][14], regular use of coated forming tools can be expected for the near future.…”

Section: Introductionmentioning

confidence: 99%

Surface modification to improve friction and galling properties of forming tools

Podgornik

Hogmark

2006

Journal of Materials Processing Technology

114

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“…The initial changes in the friction coefficient during the beginning of the test may be due to the development process of the corresponding sliding partners. The steady and low friction regime (almost µ = 0.1) obtained for both films are related especially to the graphitization of the DLC with wear agitation (the transformation of sp 3 to sp 2 by breaking C-C bonds due the friction) and the contribution of this graphitic structure to the desired transfer film [1,7,[33][34][35][36][37][38][39][40][41][42][43] as a solid lubricant and related to DLC gradient film with high hardness which results in smaller contact areas between the film and the counterpart. Liu et al [33] noted that a stable and low friction exhibition of DLC films in humid environments is owing to the graphitization induced with wear.…”

Section: Microhardness Of Filmsmentioning

confidence: 99%

The effect of TiC transient layer on a DLC-based functionally gradient coating prepared by closed field unbalanced magnetron sputtering plating system

Bülbül

Efeoğlu

2010

Met. Mater. Int.

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Recently, Diamond like carbon (DLC)-based functionally gradient coatings have been used in a variety of engineering applications as useful films with appropriate tribological properties verified in many tests. However, due to their inherent residual stresses, they have a tendency to peel off, thereby limiting their applications (involving high contact stresses) and deposition thickness. Their brittleness and low adhesion may stem from either a faulty layer design or the wrong choice of material and deposition method. Therefore, using both a suitable interleaving material and an appropriate deposition technology will create an inclusive vision to accommodate better film properties. In this study, Ti-a:C and Ti-TiC-a:C films on AISI M2 steel substrates were deposited by Closed Field Unbalanced Magnetron Sputtering (CFUBMS) method using pulsed-dc biasing, and the mechanical, the structural, and the tribological properties for both films were investigated. It was seen that the incorporation of a TiC buffer layer between the Ti interlayer and the a:C matrix played a positive role in terms of hardness, wear rate, and adhesion properties.

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Tungsten carbide/diamond-like carbon multilayer coatings on steel for tribological applications

Cited by 78 publications

References 17 publications

Friction and Wear Properties of WC/C Nano-Scale Multilayer Coatings on Technical Surfaces

Friction and Wear Properties of WC/C Nano-Scale Multilayer Coatings on Technical Surfaces

Surface modification to improve friction and galling properties of forming tools

The effect of TiC transient layer on a DLC-based functionally gradient coating prepared by closed field unbalanced magnetron sputtering plating system

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