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Published in: Journal of Coatings Technology and Research 2/2010

01-03-2010

Dry abrasion property of TiN-matrix coating deposited by reactive High Velocity Oxygen Fuel (HVOF) spraying

Authors: Zhengping Mao, Jing Ma, Jun Wang, Baode Sun

Published in: Journal of Coatings Technology and Research | Issue 2/2010

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Abstract

A TiN-matrix coating with a thickness of about 400 μm was prepared by reactive high velocity oxygen fuel (HVOF) spraying on carbon steel in air. The phase composition, microhardness, and antiabrasion properties of the coating were investigated using x-ray diffraction (XRD), an energy dispersive spectrometer (EDS), a scanning electron microscope (SEM), a Vickers microhardness tester, and block-on-ring abrasive equipment. The abrasion mechanism of TiN-matrix coating under dry abrasion conditions was also discussed. The results indicate that the composition of the coating is main phases of TiN and TiN0.3, minor phases of Ti2O3, and TiO2. The TiN-matrix coating possesses high microhardness and relatively good toughness. Furthermore, the friction coefficient of the coating decreases with the increment of applied load. The interstratified distribution of titanium oxides can act as a solid lubricant during the wear test. The main abrasion mechanism of the TiN-matrix coating is adhesion wear. In addition, the coating with self-lubricating property can improve the antiwear property of the substrate significantly.

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Metadata
Title
Dry abrasion property of TiN-matrix coating deposited by reactive High Velocity Oxygen Fuel (HVOF) spraying
Authors
Zhengping Mao
Jing Ma
Jun Wang
Baode Sun
Publication date
01-03-2010
Publisher
Springer US
Published in
Journal of Coatings Technology and Research / Issue 2/2010
Print ISSN: 1547-0091
Electronic ISSN: 1935-3804
DOI
https://doi.org/10.1007/s11998-009-9180-6

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