fig3

Figure 3. Scanning TEM (STEM) images showing the L1₂ and B2 lamellae of as-cast (A) 18Al and (D) 19Al EHEAs. Two selected-area-diffraction patterns (SADPs) of L1₂ and B2 lamellae in (B) 18Al and (E) 19Al EHEAs, respectively. Superlattice-diffraction spots of the L1₂ and B2 phases are marked by white circles. Energy-dispersive spectroscopy (EDS) maps of STEM images exhibiting the distribution of Ni, Cr, Co, Al in (C) 18Al and (F) 19Al EHEAs, respectively.