Influence of a phase composition cast high-entropy alloys on mechanical properties

Abstract

On metal cast multicomponent high-entropy alloys (in amount more than 20) the influence of working mixture, phase components and structure on mechanical properties at temperatures 20—900 °С were investigated. In one- and two-phase alloys including 5—10 elements (S_mix = 13,3—19,1 J/mol•K) the present factors of hardening (composite at a level of a crystalline lattice and structural as volumetric nanocrystalline states) are considered with attraction of refractory metals Ті, Zr, Hf, V, Nb, Та, Cr, Mo, W and in a combination with hardening by the multicomponent intermetallic compound phases as Laves phase c14, σ-phase and μ-phase. Regularity and features of hardening for the studied alloys is installed