Abstract
The steam oxidation resistance of 80Ni-20Cr coatings on modified 9Cr-1Mo steel has been evaluated in the temperature range of 600 °C to 750 °C. High-velocity oxyfuel (HVOF) spray was used for the coating process. The steam-oxidized specimens exhibited the diffusion of iron from the substrate to the coating and diffusion of nickel from the coating to the substrate. Nickel diffusion to the substrate adjacent to the coating induced the microstructural changes. Micro X-ray diffraction (XRD) studies and energy-dispersive spectroscopy (EDS) point analysis on these transformed zones revealed that the newly formed phases are the austenite in the high-Ni-concentration region and the martensite in the low-Ni-concentration region. Microhardness studies showed higher hardness values in the martensite zones.
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R. Viswanathan and W.J. Bekker: Mater. Eng. Performance, 2001, vol. 10, p. 81.
M. Taneike, F. Abe, and K. Sawada: Nature, 2003, vol. 424, p. 294.
F. Abe, H. Okada, S. Wanikawa, M. Tabuchi, T. Itagaki, K. Kimura, and K. Yamaguchi: 1 st Int. Conf. on Advances in Structural Steels, Tsukuba, Japan, May 22–24, 2002.
F. Abe: Metall. Mater. Trans. A, 2003, vol. 34A, p. 913.
H. Kutsumi, S. Muneki, T. Itagaki, and F. Abe: J. Jpn. Inst. Met., 2002, vol. 66, p. 997.
W. Kaysser: Surf. Eng., 2001, vol. 17, p. 305.
C. Cheng, G.H. Meier, R.A. Perkins, and W.T. Bekker: in Materials for Coal Gasification, W.T. Bekker, ed., ASM INTERNATIONAL, Metals Park, OH, 1988, p. 159.
R. Burgel and I. Kvernes: High-Temperature Alloys for Gas Turbine and Other Applications, Conf. Proc., W. Betz, ed., Dordrecht, Germany, 1986, p. 327.
T. Sundararajan, S. Kuroda, T. Itagaki, and F. Abe: Iron Steel Inst. Jpn. Int., 2003, vol. 43, p. 95.
T. Sundararajan, S. Kuroda, T. Itagaki, and F. Abe: Iron Steel Inst. Jpn. Int., 2003, vol. 43, p. 104.
T. Sundararajan, S. Kuroda, K. Nishida, T. Itagaki, and F. Abe: Iron Steel Inst. Jpn. Int., 2004, vol. 44, p. 139.
T. Sundararajan, S. Kuroda, T. Itagaki, and F. Abe: in Thermal Spray 2003: Advancing the Science & Applying the Technology, C. Moreau and B. Marple, eds., ASM INTERNATIONAL, Materials Park, OH, 2003, p. 495.
T. Sundararajan, S. Kuroda, and F. Abe: Mater. Trans., 2004, vol. 45, p. 1299.
T. Sundararajan, S. Kuroda, and F. Abe: Metall. Mater. Trans. A, 2004, vol. 35A, p. 3187.
T. Sundararajan, S. Kuroda, F. Abe, and S. Sodeoka: Surface Coating Technol., in press.
M.H. Li, Z.Y. Zhang, X.F. Sun, J.G. Li, F.S. Yin, W.Y. Hu, H.R. Guan, and Z.Q. Hu: Surface Coating Technol., 2003, vol. 165, p. 241.
NRIM Creep Data Sheet 2003, National Institute for Materials Science, Japan, vol. 43, p. 1.
J. Porcayo-Calderon, E. Brito-Figueroa, and J.G. Gonzalez-Rodriguez: Mater. Lett., 1999, vol. 38, p. 45.
E.A. Brandes and G.B. Brook: Smithells Metals Handbook, Butterworths-Heinemann, 1992, pp. 131–311.
J.C. Lippold: ASM Handbook, ASM INTERNATIONAL, Materials Park, OH, 1993, vol. 6, p. 431.
U. Boese, D. Werner, and H. Wirtz: Behavior of Steels during Welding, Verlag DVS, Dusseldorf, 1984, p. 265.
L. Beres: Welding J., 1998, vol. 77, p. 273s.
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Sundararajan, T., Kuroda, S. & Abe, F. Steam oxidation of 80Ni-20Cr high-velocity oxyfuel coatings on 9Cr-1Mo steel: Diffusion-induced phase transformations in the substrate adjacent to the coating. Metall Mater Trans A 36, 2165–2174 (2005). https://doi.org/10.1007/s11661-005-0336-4
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DOI: https://doi.org/10.1007/s11661-005-0336-4