Effect of tribofilm formation on the dry sliding friction and wear properties of magnetron sputtered TiAlCrYN coatings

LUO, Q., ZHOU, Z., RAINFORTH, W. M. and BOLTON, M. (2009). Effect of tribofilm formation on the dry sliding friction and wear properties of magnetron sputtered TiAlCrYN coatings. Tribology Letters, 34, 113-124.

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Link to published version:: 10.1007/s11249-009-9415-9

Abstract

Nano-structured TiAlCrYN coatings, grown by unbalanced magnetron sputtering on various steel substrates, exhibited friction coefficients 0.6–0.8 and wear coefficients 10-16–10-15 m3 N-1 m-1 in dry sliding wear tests. This article reports comprehensive worn surface analyses using SEM, TEM , EDX, EELS and Raman spectroscopy. A *80 nm thick tribofilm formed on the TiAlCrYN worn surface was found to have dense amorphous structure and homogeneous oxide composition of Cr0.39Al0.19Ti0.20Y0.01 O0.21. Viscous flow of the amorphous tribofilmwas dominant in causing the high friction coefficient observed. The coatings showed combined wear mechanisms of tribo-oxidation and nano-scale delamination.

Item Type: Article
Research Institute, Centre or Group: Materials and Engineering Research Institute > Materials Analysis and Research Services
Identification Number: 10.1007/s11249-009-9415-9
Depositing User: Quanshun Luo
Date Deposited: 10 Sep 2010 10:28
Last Modified: 27 Jun 2011 11:26
URI: http://shura.shu.ac.uk/id/eprint/2482

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