Fig. 3: Characterization of the NiFeCrCo MPEA fabricated by the heat-concentrated, high-temperature melt printing platform.
From: Ultrahigh-temperature melt printing of multi-principal element alloys

a Schematic of forming FCC single-phase NiFeCrCo MPEA. b Photograph of the heat-concentrated zone for MPEA fabrication. c SEM and EDS of the printed NiFeCrCo MPEA. d EBSD image and e grain size distribution of the NiFeCrCo MPEA. f Phase transformation path of NiFeCrCo during solidification predicted by Scheil simulation. g 3D APT tip reconstructions of the Ni, Fe, Cr, and Co atom positions in a typical APT tip for the fabricated NiFeCrCo MPEA. h Observed and statistical binomial frequency distribution analysis results of Ni, Fe, Cr, and Co for the APT tip.