Influence of deformation on the structure and the mechanical properties of a high-entropy Fe^sub 25^Cr^sub 20^Ni^sub 20^Co^sub 10^Mn^sub 15^Al^sub 10^ alloy

• Published in: Russian metallurgy Metally Vol. 2014; no. 10; p. 773
• Main Authors: Gorban', B F, Nazarenko, V A, Danilenko, N I, Karpets, M V, Krapivka, N A, Firstov, S A, Makarenko, E S
• Format: Journal Article
• Language: English
• Published: Moscow Springer Nature B.V 01-10-2014
• ISSN: 0036-0295; 1531-8648
• DOI: 10.1134/S0036029514100036

The phase composition, the hardness, and the elasticity modulus of a high-entropy Fe^sub 25^Cr^sub 20^Ni^sub 20^Co^sub 10^Mn^sub 15^Al^sub 10^ alloy have been studied in the as-cast state, after rolling deformation, and after subsequent high-temperature annealing. The alloy consists of the following two phases: solid substitutional solutions with bcc and fcc crystal lattices; in the as-cast state and after annealing the bcc solid solution is ordered according to B2 type (CsCl). The mixture rule is applied for the calculation of the electron density, the atomic radius, and the melting point at grain boundaries and in the grain volume of the alloy after deformation and annealing. The obtained data demonstrate that the alloy is thermally stable.