Fig. 3: Two types of CSRO in one Fe-18Al alloy annealing at 523 K for 14 days.

a, d Part of D03-CSRO and B2-CSRO tomography from the same dataset, respectively. Different CSRO domains are marked using different colours. For each tomography, two thin slices of thickness 2 nm are highlighted. b, e Distributions of morphologies of D03-CSRO and B2-CSRO domains, respectively. The size and colour of one circle denote the number of atoms within one domain. c, f Histograms of the size distributions of the identified D03-CSRO and B2-CSRO domains, respectively. Another format with the logarithmic-scale x-axis is provided in the inserted image.