Residual Stresses in Thermally Sprayed Gas Turbine Components

Authors: M.Jalali Azizpour, S.Norouzi, D.Sajedipour, H.Mohammadi Majd

Abstract:

In this paper, the residual stress of thermal spray coatings in gas turbine component by curvature method has been studied. The samples and shaft were coated by hard WC-12Co cermets using high velocity oxy fuel (HVOF) after preparation in same conditions. The curvature of coated samples was measured by using of coordinate measurement machine (CMM). The metallurgical and Tribological studies has been made on the coated shaft using optical microscopy and scanning electron microscopy (SEM)

Keywords: Thermal spray, Residual stress, Wear mechanism, HVOF, Gas compressor shafts

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1073195

References:

[1] U. Erning, M. Nestler, Proceedings of United Thermal Spray Conference (UTSC 99). D├╝sseldorf, March 1999, p. 462.
[2] T. Sahraoui, S. Guessasma, N.E. Fenineche, G. Montavon, C. Coddet, Materials Letters 58 (2004) 654.
[3] Y. Qiao, Y.R. Liu, T.E. Fischer, Sliding and abrasive wear resistance of thermalsprayed WC-Co coatings, Journal of Thermal Spray Technology 10 (2001) 118- 125.
[4] T. Sahraoui, S. Guessasma, N.E. Fenineche, G. Montavon, C. Coddet, Materials Letters 58 (2004) 654-660.
[5] R.J.K. Wood, B.G. Mellor, M.L. Binfield, Wear 211 (1997) 70-83.
[6] T.W. Clyne and S.C. Gill, Residual Stresses in Thermal Spray Coatings and Their Effect on Interfacial Adhesion: a Review of Recent Work, J. Therm. Spray Tech., 1996, 4, p 401-409.
[7] Y.Y. Santana, J.G. La Barbera-Sosa M.H. Staia, J. Lesage, E.S. Puchi- Cabrera, D. Chicot and E. Bemporad, Measurement of residual stress in thermal spray coatings by the incremental hole drilling method, Journal of Surface and Coatings Technology,Volume 201, Issue 5, 25 October 2006, Pages 2092-2098
[8] Y.C Tsui, T.W. Clyne, Journal of Thin Solid Film 306(1997)34-51.
[9] Miguel, J.M., Guilemany, J.M., Mellor, B.G. and Xu, Y.M. (2003) Acoustic emission study on WC-Co thermal sprayed coatings. Materials Science and Engineering A, 352, (1-2), 55-63
[10] Z.Y. Taha-al, M.S. Hashmi, and B.S. Yilbas, Effect of WC on the residual stress in the laser treated HVOF coating, Journal of Materials Processing Technology Volume 209, Issue 7, 1 April 2009, Pages 3172- 3181
[11] S.kamnis, S. Gu, Journal of thermal spray technology, vol. 19(1-2)2010, p31-41
[12] Tie-Gang Wang, Sheng-Sheng Zhao, Wei-Gang Hua, Jia-Bao Li, Jun Gong, Estimation of residual stress and its effects on the mechanical properties of detonation gun sprayed WC-Co coatings, Journal of Materials Science and Engineering: A , Volume 527, Issue 3, 15 January 2010, Pages 454-461