Extended Data Fig. 2: Geometrical phase analysis strain mapping of a 1,000 °C aged sample and a water-quenched sample.
From: Short-range order and its impact on the CrCoNi medium-entropy alloy

a–d, 1,000 °C aged alloy; e–h, water-quenched sample. a, e, Drift-corrected HRSTEM images of the 1,000 °C aged sample and the water-quenched sample, respectively. The fast Fourier transformed images are shown inset. b–d, Strain maps of a showing nanometre-sized local fluctuations of strain (εxx, normal strain in the x direction; εyy, normal strain in the y direction). f–h, Strain maps of e showing similar but much weaker contrast of local strain.