Abstract
In order to develop high temperature oxidation resistive coatings, multi-layer thermal spray coatings containing Ni-Cr-Al and Al layers were applied to austenitic stainless steel substrate. The Ni-Cr-Al layers were coated with Ni-20%Cr-5%Al pre-alloyed powder or mixtures of Ni-20%Cr powder with 5% of pure A1 powder. Then, pure A1 was sprayed on the Ni-Cr-Al coated surface. Prior to high temperature oxidation test, conducted at 1273 K in air, sprayed specimens were heat treated at 1123 K for 3.6 ks and 1423 K for 3.6 ks in air. The oxidation resistivity of coating sprayed with pre-mixed powder is superior to that made with pre-alloyed powder. This result is attributed to the difference in the distributions of the Al rich alloy phases formed by the diffusion between each layer.
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References
K. Kamachi, S. Oki, S. Gohda and G. Ueno, Reaction Diffusion between Thermal Sprayed Aluminum and Copper Substrate, J. Japan Inst. Metals, 52, 995–998 (1988).
K. Kamachi, S. Oki, S. Gohda and Y. Hirato, Formation Process of Alloy Phases by Reaction Diffusion between Thermal Sprayed Aluminum and Substrate of Armco Iron and Carbon Steels, J. Japan Inst. Metals, 52, 999–1005 (1988).
S. Oki, K. Kamachi and S. Gohda, J. Japan Inst. Metals, to be published.
N. Birks and G. H. Meier, Introduction to High Temperature Oxidation of Metals, Edward Arnold Ltd., translated by K. Nishida and T. Narita, Maruzen, Tokyo, 1988, p. 133.
K. Shimotori and T. Aisaka, The Trend of MCrAIX Alloys for High-Temperature-protective Coatings — On the Effects of Alloys Compositions-, ISIJ, 69, 1229–1241 (1983)
K. Shimotori, Thermal Spraying Materials, in Thermal Spraying Handbook, ed Japan Thermal Spraying Society, Tokyo, 1986, pp. 216–225.
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© 1990 Elsevier Science Publishers Ltd.
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Oki, S., Kamachi, K., Gohda, S. (1990). Formation of Intermetallic Compound Layer Formed by Diffusion Treatment of Thermal Spray Coatings, and its Application. In: Sōmiya, S., Doyama, M., Hasegawa, M., Agata, Y. (eds) Transactions of the Materials Research Society of Japan. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-0789-8_14
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DOI: https://doi.org/10.1007/978-94-009-0789-8_14
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-6842-0
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