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The Effect of Impinging WC-12Co Particles Temperature on Thickness of HVOF Thermally Sprayed Coatings

Authors: M. Jalali Azizpour, H. Mohammadi Majd

Abstract:

In this paper, the effect of WC-12Co particle temperature in HVOF thermal spraying process on the coating thickness has been studied. The statistical results show that the spray distance and oxygen-to-fuel ratio are effective factors on particle characterization and thickness of HVOF thermal spraying coatings. Spray Watch diagnostic system, scanning electron microscopy (SEM), X-ray diffraction and thickness measuring system were used for this purpose.

Keywords: HVOF, Temperature, Thickness, Velocity, WC- 12Co.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1096980

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References:


[1] M. HeydarzadehSohi, F.Ghadami, Comparative tribological study of air plasma sprayed WC–12%Co coating versus conventional hard chromium electrodeposit, Tribology International, 2009.
[2] Y.Y. Santana, Characterization and residual stresses of WC–Co thermally sprayed coatings, Surface & Coatings Technology 202 (2008) 4560–4565
[3] C. Lyphout, Residual Stresses Distribution through Thick HVOF Sprayed Inconel 718 Coatings, Journal of Thermal Spray Technology, Volume 17(5-6) Mid-December 2008—915.
[4] Stewart DA, Shipway PH, McCartney DG. Microstructural evolution in thermally sprayed WC–Co coatingsActa Mater 2000;48:1593–604.
[5] Yang Q, Senda T, Ohmori A. Effect of carbide grain size on microstructure and sliding wear behavior of HVOF-sprayed WC–12% Co coatings. Wear 2003;254:23–34.
[6] T.C. Totemeier, R.N. Wright, W.D. Swank, Metall. Mater. Trans., A Phys. Metall. Mater. Sci. 35 (6) (2004) 1807.
[7] T.C. Totemeier, R.N. Wright, Surf. Coat. Technol. 200 (12-13) (2006) 3955.
[8] J.C. Smithells, Metals Reference Book, 5th editionButterworths, London, 1976.
[9] T.C. Totemeier, Residual stress determination in thermally sprayed coatings—a comparison of curvature models and X-ray techniques, Surface & Coatings Technology 200 (2006) 3955 – 3962.
[10] M.Jalali Azizpour, S.Nourouzi, The effect of spray parameters on the WC-12Co particles velocity, Iranian Journal of surface science, vol16(45-53)2013.