Study of the structure and mechanical properties of Ni–Co–Cr entropy alloy in the cast state

Vlasov I.I., Sevalnev G.S., Lyakhov A.A., Nefedkin D.Yu.
UDC
669.017.13
DOI
10.18577/2307-6046-2024-0-12-18-30
Article PDF (Russian) (1.63 MB)
How to cite
Vlasov I.I., Sevalnev G.S., Lyakhov A.A., Nefedkin D.Yu. Study of the structure and mechanical properties of Ni–Co–Cr entropy alloy in the cast state // Proceedings of VIAM. 2024. No. 12. DOI: 10.18577/2307-6046-2024-0-12-18-30. URL: https://test.viam.ru/en/journal/2024/12/2
Keywords
entropy alloys, alloying, structure, phase composition, hardness, mechanical properties
Abstract

In the article were studied the microstructure, phase composition, and the change in mechanical properties depending on the test temperature of the high-entropy alloy in the NiCoCrWNbAlTiReC system after vacuum induction melting. According to the results of the studies and tests, it was established that the alloy structure consists of a FCC solid solution with excess phases, with the implementation of the mechanism of strain hardening at the test temperature of 20 °C and structural-phase transformations in the temperature range of 900–1100 °C.

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