The University of Southampton
University of Southampton Institutional Repository

High temperature tribology of CrN and multilayered Cr/CrN coatings

Polcar, T., Martinez, R., Vítů, T., Kopecký, L., Rodriguez, R. and Cavaleiro, A. (2009) High temperature tribology of CrN and multilayered Cr/CrN coatings Surface and Coatings Technology, 203, (20-21), pp. 3254-3259. (doi:10.1016/j.surfcoat.2009.04.005).

Record type: Article


Chromium nitride (CrN) and multilayers Cr/CrN coatings were deposited by low cathodic arc technology. The thickness of Cr and CrN layers was identical; two different multilayer coatings were deposited with layer thicknesses of 85 and 160 nm. The structural analysis showed that CrN coatings exhibited the cubic CrN phase, while a mixture of CrN, Cr2N and Cr phases was observed in the case of multilayers. The annealing of the samples at 800 and 900 °C in air led to: (1) the decomposition of the chromium nitride phases into chromium; (2) a moderate oxidation by forming a thin Cr2O3 layer on the coating surface and, (3) carbon diffusion from the steel substrate. The chemical composition depth analysis performed by glow discharge optical emission spectroscopy (GDOES) showed a nitrogen-rich layer below the surface oxide layer for Cr/CrN multilayers. The multilayer structure, clearly visible by GDOES at room temperature, disappeared at 800 °C. Friction and wear analysis carried out by pin-on-disc in the temperature range 600–800 °C followed by the wear track observation by scanning electron microscopy showed that the dominant feature influencing the tribological properties was the formation of a tribolayer. The tribolayer consisted of small wear debris particles of chromium oxide pressed together and well adhered in the wear track. The multilayer Cr/CrN coatings showed a slightly better wear resistance than CrN film.

Full text not available from this repository.

More information

Published date: 2009
Organisations: nCATS Group


Local EPrints ID: 199801
ISSN: 0257-8972
PURE UUID: 580f561a-5d82-4b9b-b558-5cb0a227602d
ORCID for T. Polcar: ORCID iD

Catalogue record

Date deposited: 20 Oct 2011 13:48
Last modified: 18 Jul 2017 11:15

Export record



Author: T. Polcar ORCID iD
Author: R. Martinez
Author: T. Vítů
Author: L. Kopecký
Author: R. Rodriguez
Author: A. Cavaleiro

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton:

ePrints Soton supports OAI 2.0 with a base URL of

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.