Study of the feasibility of using intermetallic alloy VKNA-1V mono instead of alloy VKNA-1VR for the manufacture of nozzle blades of a high-pressure turbine of a promising gas turbine engine

Rimsha E.G., Bazyleva O.A., Lutskaya S.A., Artemenko J.V.
UDC
669.017.165
DOI
10.18577/2307-6046-2026-0-5-13-24
Article PDF (Russian) (2.23 MB)
How to cite
Rimsha E.G., Bazyleva O.A., Lutskaya S.A., Artemenko J.V. Study of the feasibility of using intermetallic alloy VKNA-1V mono instead of alloy VKNA-1VR for the manufacture of nozzle blades of a high-pressure turbine of a promising gas turbine engine // Proceedings of VIAM. 2026. No. 5. DOI: 10.18577/2307-6046-2026-0-5-13-24. URL: https://test.viam.ru/en/journal/2026/5/2
Keywords
intermetallic, compound Ni3Al, balance of alloying, composition of the alloy, phase, polycrystalline structure, monocrystalline structure, mechanical properties, long-term strength
Abstract

The article presents comparative studies of the structure, phase composition, mechanical properties and long-term strength of casting structural alloys based on the Ni3Al compound VKHA-1VR with a polycrystalline structure and VKHA-1V Mono in two crystallographic orientations [111] and [001]. It is shown that the intermetallic alloys calculated taking into account the balance of alloying have passed technological testing with a positive result in the manufacture of castings of nozzle blades of a high-pressure turbine. VKNA-1VR alloy nozzle blades were also used on a promising gas turbine engine with positive results.

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