Abstract
Five representative types of WC-Co powders were selected to clarify the dependence of the structure of sprayed coatings on the structure of powders themselves. The WC-Co coatings were sprayed with the Jet-Kote process and plasma spraying as well. The structure of WC-Co coatings was primarily characterized by X-ray diffraction. The X-ray diffraction patterns of the sprayed coatings were illustrated compared with those of powders, which aims at a better understanding of the structure of thermally sprayed WC-Co coatings. The selected coating was also analysed by differential scanning calorimetry (DSC). The decarburizing process, and the effects of powder structure and spray conditions on the crystal structure of sprayed WC-Co coatings are discussed in detail.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
J. GURLAND and P. BARDZIL, J. Metals, Trans. AIME, February, (1955) 331.
J. GURLAND, Ibid. February, (1954) 285.
H. E. EXNER and J. GURLAND, Powder Metall. 13 (1970) 13.
R. V. SARA, J. Amer. Ceram. Soc. 48 (1965) 251.
M. OKADA and H. MARUO, Br. Weld. J. 15 (1968) 371.
W. MILEWSKI, in Proceedings of the 7th International Metal Spraying Conference, London, Sept. 10–14, 1973, (Welding Institute, UK, 1973) p. 24.
D. DULIN and A. R. NICOLL, in Proceedings of the National Thermal Spraying Conference, Florida, Sept. 14–17, 1987, (ASM International, USA, 1988) p. 345.
P. MAZARS, D. MANESSE and C. LOPVET, in Proceedings of the 11th International Thermal Spraying Conference, Montreal, Sept. 8–12, 1986 (Canada Welding Institute, 1986) p. 111.
J. SUBRAHHMANYAM, M. P. SRIVASTAVA and R. SIVAKUMAR, Mater. Sci. Eng. 84 (1986) 209.
Y. ARATA, A. OHMORI and E. GOFUKU, in Proceedings of the 11th International Thermal Spraying Conference, Montreal, Sept. 8–12, 1986 (Canada Welding Institute, 1986) p. 805.
B. A. DETERING, J. R. KNIBLOE and T. L. EDDY, in Proceedings of the 3rd National Thermal Spray Conference, Long Beach, California, May 20–25, 1990, edited by T. F. Bernecki (ASM International, 1991) p. 27.
S. RANGASWAMY and H. HERMAN, in Proceedings of the 11th International Thermal Spraying Conference, Montreal, Sept. 8–12, 1986 (Canada Welding Institute, 1986) p. 101.
M. E. VINAYA, F. KASSABJI, J. GUYONNET and P. FAUCHAIS, J. Vac. Sci. Technol. A3 (1985) 2483.
V. RAMNATH and N. JAYARAMAN, Mater. Sci. Technol. 5 (1989) 382.
H. KREYE, D. FANDRICH, H.-H. MULLER and G. REINERS, in Proceedings of the 11th International Thermal Spraying Conference, Montreal, Sept. 8–12, 1986 (Canada Welding Institute, 1986) p. 121.
Y. FUKUDA, H. YAMASAKI, M. KUMONN and H. KIMURA, in Proceedings of the International Symposium on Advanced Thermal Spraying Technology and Allied Coatings (ATTAC' 88) Osaka, May 12–15, 1988, (Japan High Temperature Society, Japan, 1988) p. 49.
H. KREYE, P. HERINCH and G. LOEWS, in Proceedings of the International Symposium on Advanced Thermal Spraying Technology and Allied Coatings (ATTAC' 88) Osaka, May 12–15, 1988 (Japan High Temperature Society, Japan, 1988) p. 73.
J. NERZ, B. KUSHNER and A. ROTORICO, in Proceedings of the 4th National Thermal Spraying Conference, Pittsburgh, 4–10 May 1991 (ASM International, USA, 1992) p. 115.
C.-J. LI, A. OHMORI and Y. HARADA, in Proceedings of the 14th International Thermal Spray Conference, Kobe, Japan, May 22–26, 1995, edited by A. OHMORI (Japan High Temperature Society, Japan, 1995) p. 896.
L. GAIDE, M. H. VINAYO, F. KASSABIJI and P. FAUCHAIS, Rev. Intl. Hautes Temper. Refract. Fr. 23 (1986) 17.
M. BOAS, M. BAMBERGER and G. REVES, Surf. Coat. Technol. 42 (1990) 175.
A. OHMORI and S. KAMADA, Private communication.
H. KREYE and U. G. SCHNIBBE, in Proceedings of the 3rd National Thermal Spray Conference, Long Beach, California, May 20–25, 1990, edited by T. F. Bernecki (ASM International, 1991) p. 575.
G. W. ORTON, Trans. AIME 230 (1964) 600.
R. KUBO, S. NAGAKURA, K. IGUCHI and H. EZAWA, Rikagaku-Jiten, Iwatani-Shoten, (1987) p. 575 and p. 1293 (in Japanese).
M. HASATANI and J. KIMURA, “Fundamental and applications of combustion” (Kyoritsu Publishing Ltd., Tokyo, 1986) p. 37 (in Japanese).
C.-J. LI, A. OHMORI and Y. HARADA, J. Thermal Spray Techn., in press.
G. BARBEZAT, E. MULLER and B. WALSER, Sulzer Technical Review 4 (1988) 27.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Li, C.J., Ohmori, A. & Harada, Y. Effect of powder structure on the structure of thermally sprayed WC-Co coatings. JOURNAL OF MATERIALS SCIENCE 31, 785–794 (1996). https://doi.org/10.1007/BF00367900
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/BF00367900