Abstract
NiCrAlY bond coat and ZrO2–8 wt% Y2O3 top coat with various thicknesses were deposited on Hastelloy X by plasma spraying. Residual stress was calculated by the finite element method (FEM) to explain the variations in the bond strength and thermal fatigue characteristics with the thickness of the bond coat and top coat. The bond strength of thermal barrier coatings (TBCs) increased with decreasing maximum residual stress in the y-direction of the top coat. The thermal fatigue characteristics increased with decrease of the maximum principal residual stress of the top coat and the thickness of oxidation layer of the bond coat.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
A. Benett, Mater. Sci. Technol. 2 (1986) 257.
P. R. Chalker, S. J. Bull and D. S. Richerby, Mater. Sci. Eng. A140 (1991) 583.
Y. Miyamoto, T. Okamoto, K. Yoshimoto and J. Harada, in “Proceedings of the Satellite Symposium 1 on High Performance Ceramic Films and Coatings of the 7th International Meeting on Modern Ceramics Technologies,” edited byP. Vincenzini (Elsevier Science, New York, 1991) p. 57.
T. A. Taylor, D. L. Appleby, A. E. Weatherill and J. Griffiths, Surf. Coat. Technol. 43/44 (1990) 470.
B. C. Wu, E. Chang, S. F. Chang and C. H. Chao, Thin Solid Films 172 (1989) 185.
R. D. Maier, C. M. Sheuermann and C. W. Andrews, Am. Ceram. Soc. Bull. 60 (1981) 555.
S. F. Chang, C. H. Chao, B. C. Wu, R. Q. Leu and E. Chang, J. Vac. Sci. Technol. A9 (1991) 2099.
Y. K. Park, MS thesis, Department of Metallurgical Engineering, Yon Sei University, Seoul, Korea (1991).
R. Mcpherson, Thin Solid Films 112 (1984) 89.
M. C. Radhakrishna, H. J. Doerr, C. V. Deshdandey and R. F. Bunshah, Surf. Coat. Technol. 36 (1988) 143.
S. Y. Kweon and S. K. Choi, Scripta Metall. Mater. 32 (1995) 359.
M. Nishida and T. Hanabusa, in “Proceedings of the 14th International Thermal Spray Conference,” edited byA. Ohmori (High Temperature Society of Japan, Osaka, Japan, 1995) p. 915.
A. J. Moses, in “The practicing scientist's handbook” (Van Nostrand Reinhold, New York, 1978).
I. C. Noyan and J. B. Cohen, in “Residual stress” (Springer, New York, 1987).
Culity, in “Elements of X-ray diffraction” (Addison-Wesley, Reading, MA, 1978).
J. F. Nye, in “Physical properties of crystals” (Oxford University Press, London, 1967).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Choi, H.M., Kang, B.S., Choi, W.K. et al. Effect of the thickness of plasma-sprayed coating on bond strength and thermal fatigue characteristics. Journal of Materials Science 33, 5895–5899 (1998). https://doi.org/10.1023/A:1004439123350
Issue Date:
DOI: https://doi.org/10.1023/A:1004439123350