Analysis of the parameters of deformation hardening of a multicomponent high-entropy alloy of the NiCoCrWReNbAlTiC system according to the Johnson–Cook model

Vlasov I.I., Sevalnev G.S., Valyuhova I.V., Dyachenko O.A.
UDC
669.018.44
DOI
10.18577/2307-6046-2026-0-6-46-56
Article PDF (Russian) (1.38 MB)
How to cite
Vlasov I.I., Sevalnev G.S., Valyuhova I.V., Dyachenko O.A. Analysis of the parameters of deformation hardening of a multicomponent high-entropy alloy of the NiCoCrWReNbAlTiC system according to the Johnson–Cook model // Proceedings of VIAM. 2026. No. 6. DOI: 10.18577/2307-6046-2026-0-6-46-56. URL: https://test.viam.ru/en/journal/2026/6/4
Keywords
deformation hardening, Johnson–Cook model, selective laser sintering, hot plastic deformation, casting, mechanical properties, high-entropy alloys
Abstract

This paper presents a comprehensive analysis of the deformation hardening of a NiCoCrWReNbAlTiC system heat-resistant alloy, made by casting, hot plastic deformation and selective laser sintering. It is established that materials produced by selective laser sintering method with further heat treatment demonstrate the highest deformation hardening characteristics with a relative contribution of up to 70 %. The material after hot plastic deformation with subsequent heat treatment shows maximum values of the hardening modulus (460.4 MPa at ε  = 0.1).

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