We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- 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
- 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.
- Subjects
ABRASION resistance; MECHANICAL behavior of materials; TITANIUM nitride; COATING processes; SCANNING electron microscopes; SURFACES (Technology)
- Publication
Journal of Coatings Technology & Research, 2010, Vol 7, Issue 2, p253
- ISSN
1945-9645
- Publication type
Article
- DOI
10.1007/s11998-009-9180-6