[S1] S1.Materials Science and Technology in High-Entropy Alloys IX(3)

[S1.27] Influence of Ni contents of Cr₂₀Mn₂₀Fe₂₀Co_40-xNi_x High-Entropy Alloy on σ-phase precipitation behavior during post-HPT annealing

*Jangho YI¹, Sangmin LEE¹, Koichi TSUCHIYA¹ (1. NIMS)

Keywords:Non-equiatomic high-entropy alloy、High pressure torsion、σ-phase precipitation、Grain refinement

The σ-phase precipitation behavior of the Cr₂₀Mn₂₀Fe₂₀Co_40-xNi_x alloy during post-HPT annealing treatment was studied. The weight fraction of the σ-phase increases with increasing the Ni contents.