Effect of High-Pressure Torsion on the Microstructure and Magnetic Properties of Nanocrystalline CoCrFeNiGa_x (x = 0.5, 1.0) High Entropy Alloys.

ABSTRACT: In our search for an optimum soft magnet with excellent mechanical properties which can be used in applications centered around "electro mobility", nanocrystalline CoCrFeNiGa_x (x = 0.5, 1.0) bulk high entropy alloys (HEA) were successfully produced by spark plasma sintering (SPS) at 1073 K of HEA powders produced by high energy ball milling (HEBM). SPS of non-equiatomic CoCrFeNiGa_0.5 particles results in the formation of a single-phase fcc bulk HEA, while for the equiatomic CoCrFeNiGa composition a mixture of bcc and fcc phases was found. For both compositions SEM/EDX analysis showed a predominant uniform distribution of the elements with only a small number of Cr-rich precipitates. High pressure torsion (HPT) of the bulk samples led to an increas

SUBMITTER: Shkodich N 

PROVIDER: S-EPMC9609683 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature