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Properties and performance of commercial TiCN coatings. Part 2: Tribological performance

Lookup NU author(s): Professor Steve Bull

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Abstract

Tribological testing has been carried out on a range of commercial PVD and CVD TiCN coatings deposited on WC/Co, which were previously characterised in detail. Single-pass scratch tests were used to characterise adhesion, and pin-on-disc testing was used to determine friction coefficients and wear rates, respectively. The critical load for coating detachment depends on coating thickness, as expected for PVD coatings, but is unexpectedly low for a medium-temperature CVD layer. The friction coefficient against WC balls varies considerably between coatings produced by different processes, as does the wear rate. Maintaining the carbon content of the exposed surface during wear is critical in the reducing friction coefficient and wear rate after the run-in process is complete. © 2002 Elsevier Science B.V. All rights reserved.


Publication metadata

Author(s): Bull SJ, Bhat DG, Staia MH

Publication type: Article

Publication status: Published

Journal: Surface and Coatings Technology

Year: 2003

Volume: 163-164

Pages: 507-514

ISSN (print): 0257-8972

ISSN (electronic):

Publisher: Elsevier

URL: http://dx.doi.org/10.1016/S0257-8972(02)00651-5

DOI: 10.1016/S0257-8972(02)00651-5


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