fig4

Figure 4. SEM/EDS mapping results for the non-fluxed suction-cast (A) and fluxed (B) [(FeNiCo)_0.85Cr_0.15]₈₃B₁₇ N-HEAs, showing Zone A (Cr₂B) is Cr-rich and Zone B (FCC) is Ni-rich. (C) TEM/EDS mapping results for the fluxed [(FeNiCo)_0.85Cr_0.15])₈₃B₁₇ N-HEA. The upper picture of (C) is the TEM bright field image, showing the Cr₂B grain (right part) and the FCC grain (left part with moire fringes). The insets display the selected area electron diffraction patterns of each phase. The dashed line in the B element map of (C) denotes the grain boundary.