Effect of dendritic liquation on phase composition and deformation mechanisms of a multicomponent Fe₄₀Mn₄₀Co₁₀Cr₁₀ alloy | Izvestiya vuzov. Fizika. 2025. № 6. DOI: 10.17223/00213411/68/6/7

Effect of dendritic liquation on phase composition and deformation mechanisms of a multicomponent Fe₄₀Mn₄₀Co₁₀Cr₁₀ alloy

The microstructure of Fe₄₀Mn₄₀Co₁₀Cr₁₀ alloy in the cast state, after plastic deformation, and recrystallization annealing at temperatures of 1373 and 1473 K has been studied. It is shown that the cast alloy has a dendritic microstructure, and, in addition to the main γ-phase (with FCC crystal lattice), a cooling ε-martensite (with HCP crystal lattice) is formed in the dendritic regions. Dendritic liquation also prevents deformational γ→ε transformation in the interdendritic regions. It is established that plastic deformation and annealing make it possible to obtain in the alloy an austenitic structure with homogeneous chemical composition.

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Keywords

multicomponent alloys, phase transformations, austenite, martensite, microstructure

Authors

Name	Organization	E-mail
Luchin Andrey V.	Institute of Strength Physics and Materials Science of the Siberian Branch of the Russian Academy of Sciences	luchin250398@yandex.ru
Gurtova Darya Yu.	Institute of Strength Physics and Materials Science of the Siberian Branch of the Russian Academy of Sciences; Tomsk State University	dasha_gurtova@mail.ru
Astafurova Elena G.	Institute of Strength Physics and Materials Science of the Siberian Branch of the Russian Academy of Sciences	elena.g.astafurova@ispms.ru

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