Mechanical and tribological evaluation of PVD WC/C coatings

Wänstrand, O.; Larsson, Mats; Hedenqvist, Per

doi:10.1016/s0257-8972(98)00821-4

Cited by 127 publications

(53 citation statements)

References 12 publications

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“…The total thickness of the a-C:H layer was 2.8 ± 0.2 m. The compressive residual stress of 0.9 ± 0.05 GPa was determined through substrate deflection before and after H-DLC film deposition on a pure Si wafer. Similar values for this type of coatings were put forward in [25,26]. …”

Section: Materials and Depositionsupporting

confidence: 69%

Tribological performance of an H-DLC coating prepared by PECVD

Solís

Zhao

Wang

et al. 2016

Applied Surface Science

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and 5.5 x 10 -8 mm -3 /N m, respectively. Through Raman spectroscopy and electron microscopy it was confirmed the carbon-carbon contact, due to the tribolayer formation on the wear scars of the coating and pin. In order to further corroborate the experimental observations regarding the graphitisation behaviour, the existing mathematical relationships to determine the graphitisation temperature of the coating/steel contact as well as the flash temperature were used.

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Section: Materials and Depositionsupporting

confidence: 69%

Tribological performance of an H-DLC coating prepared by PECVD

Solís

Zhao

Wang

et al. 2016

Applied Surface Science

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“…Several approaches have been introduced to improve the adhesion strength of the DLC coating. As reported in the literature, Cr interlayer is introduced to decrease the compressive residual stress of the coating; therefore the adhesion strength is enhanced [7,8]. Another approach to overcome the aspects of low adhesion and high compressive stress is to incorporate W into the DLC coating.…”

Section: Introductionmentioning

confidence: 99%

Tribological behaviour of Mo–W doped carbon-based coating at ambient condition

Mandal

Ehiasarian

Hovsepian

2015

Tribology International

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“…The tests were carried out on a T-01M (ITE) device with the following parameters: a sliding speed of 0.2 m/s, a normal load of 20 N, an Al 2 O 3 counterpart of a 10 mm diameter, a sliding distance of 1000 m, a temperature of 22°C (±1°C) and a relative humidity of 30 % (±5 %). To determine the wear rate of the coating (k vc ) and the wear rate of the counterpart (k vb ), the procedure proposed by Wänstrand et al 11 was used.…”

Section: Methodsmentioning

confidence: 99%

Characteristics of the AlTiCrN+DLC coating deposited with a cathodic arc and the PACVD process

Lukaszkowicz¹,

Jonda²,

Sondor³

et al. 2016

Mater. Tehnol.

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A coating system composed of the AlTiCrN film covered with diamond-like carbon (DLC)-based lubricant, deposited on a hot-work tool-steel substrate was the subject of the research. The AlTiCrN and DLC layers were deposited with a cathodic arc and the PACVD technology on the X40CrMoV5-1. A HRTEM investigation showed an amorphous character of the DLC layer. It was found that the tested AlTiCrN layer has a columnar character with fine crystallites. Based on the XRD analysis, the fcc type of the crystal structure was proposed for this layer. Combined studies including SEM, AES and ToF-SIMS confirmed the chemical composition and layered structure of the coating. The chemical distributions of the elements inside the layers and at the interfaces were analyzed with the SEM and AES methods. It was shown that an additional layer of Cr and AlTiN is present between the substrate and the AlTiCrN coating. In sliding dry-friction conditions, the friction coefficient for the investigated elements is set in the range of 0.02-0.03. The investigated coating revealed a high wear resistance. The coating demonstrated a good adhesion to the substrate. Keywords: AlTiCrN film, DLC film, TEM, SEM, AES, ToF-SIMS, chemical composition, tribological properties Predmet preiskave je bil sestavljen sistem AlTiCrN plasti, pokritih z diamantu podobnim ogljikom (DLC)-kot mazivom, ki je bil nane{en na podlago iz orodnega jekla, za delo v vro~em. AlTiCrN in DLC plasti so bile nane{ene s tehnologijo katodnega ARC in PACVD na X40CrMoV5-1. HRTEM-preiskava je pokazala amorfne zna~ilnosti DLC plasti. Ugotovljeno je bilo, da ima preiskovana plast AlTiCrN stebrasta drobna kristalna zrna. Na osnovi XRD analize je za to plast predlagana ploskovno centrirana kubi~na (fcc) kristalna zgradba. Kombinirane SEM, AES in ToF-SIMS {tudije so potrdile kemijsko sestavo in plasti v zgradbi nanosa. Razporeditev kemijskih elementov v plasteh in na stiku je bila analizirana s SEM in AES metodami. Ugotovljeno je, da je dodatna plast Cr in AlTiN prisotna med podlago in AlTiCrN nanosom. Pri pogojih suhega drsenja je bil koeficient trenja postavljen v obmo~je med 0,02-0,03. Preiskovan nanos je pokazal veliko odpornost na obrabo in dobro oprijemljivost na podlago.

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Mechanical and tribological evaluation of PVD WC/C coatings

Cited by 127 publications

References 12 publications

Tribological performance of an H-DLC coating prepared by PECVD

Tribological performance of an H-DLC coating prepared by PECVD

Tribological behaviour of Mo–W doped carbon-based coating at ambient condition

Characteristics of the AlTiCrN+DLC coating deposited with a cathodic arc and the PACVD process

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