Wear-Resistant Alloy for Protection of Contact Surfaces of Working Aircraft Engine Blades from Oxidation at High Temperatures
DOI:
https://doi.org/10.15407/scin10.04.022Keywords:
cobalt alloys, niobium carbide, alloying, heat resistance, melting point, wear resistance.Abstract
Wear-resistant and heat-resistant cast cobalt-based alloy for hardening of the contact surfaces of working blades of aircraft gas turbine engines instead of commercial alloys ХТН-61 and ВЖЛ-2 was developed. High levels of heat resistance were achieved by complex doping (modification) of the alloy. Based on studies of heat resistance, wear resistance, the structure and melting point of the alloys, the optimum chemical and phase composition of the developed alloy was defined.
References
OST 1-90126-85. Casting Vacuum-Melted Heat-Resistant Alloys (in Russian).
Shurin, A.K., Dmytrieva, G.P., Cherepova, T.S., Andriichenko, N.V., Ivshenko, L.Y.: Patent of Ukraine on Invention no. 8240A. Cobalt-Based Alloy. Bulletin, 1 (1996) (in Ukrainian).
Super-Alloys II. Heat-Resistant Metals for Aerospace and Industrial Machining. (1995). In Sims, C.T. (ed.). Moscow: Metallurgy (in Russian).
Heat-Resistant Cobalt-Based Alloys for Application to Gas Turbines. Mater. Sci. and Eng., 88, 11-19 (1987) (in Russian).
https://doi.org/10.1016/0025-5416(87)90061-9
Reznik, I.D., Sobol, S.N., and Khudiakov, V.M.(1995, 1996). Cobalt. Moscow: Machine-Building (in Russian).
Physical Properties of Materials, Materials Engineering. Materials Selector, 103, 12, 81-83 (1986).
Shurin, A.K., Cherepova, T.S., Andriichenko, N.V., and Zamkovyi, V.Ye.: Cobalt-Based Alloy. Patent of Ukraine on Useful Model no.39450. Bulletin, 4, (2009) (in Ukrainian).
Heat-Resistant Materials. In: Sobolev, A.S and Novik, V.S. (Trans.) Moscow: Metallurgy (1969) (in Russian).
Perelman, F.M. and Zvorykin, A.Ya. (1975). Cobalt and Nickel. Moscow: Nauka (in Russian).
Dmyrrieva, G.P., Cherepova, T.S., and Shurin, A.K.: Phase Equilibria in Co-CoAl-W Alloys. Metal Science and Metal Treatment, 4, 3-6 (2005) (in Ukrainian).
Dmyrrieva, G.P., Cherepova, T.S., and Shurin, A.K.: Phase Equilibrium in Co-CoAl-W Alloys. Metal Science and Metal Treatment, 2, 22-25 (2006) (in Ukrainian).
