Abstract
Aim of this work is to study the effect of milling parameters on structural and phase evolution of Y2O3 and Ti dispersed equiatomic CoCrCuFeNi high entropy alloy. Variation in dislocation density, lattice strain, and crystallite size were found in orderly manner with effect of milling time. The major phase comprises of Cu0.33Fe0.33Ni0.33 with FCC base crystal structure with the presence of minor Cu5Ni12Y2 (HCP) phase to form a simple solid solution. The crystallite size, lattice strain, dislocation density and lattice parameter were obtained as 11.5 nm, 0.944%, 91.15 × 1015/m2 and 3.5880 Å, respectively after 30 h of milling.
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