Figure 1: Microstructure and elemental distribution in the as-homogenized coarse-grained iHEA.

(a) XRD and EBSD patterns reveal that the structure consists of f.c.c. and h.c.p. phases (DP structure). (b) EDS maps and BSE images from the region marked in (a) show the uniform distributions of all elements at the grain-scale. (c) ECCI analysis shows stacking faults and h.c.p. phase within the f.c.c. matrix. Three-dimensional APT tip reconstructions taken from the region marked in (a) are given in Supplementary Fig. S1.