Extended Data Fig. 4: Serial sections through an APT reconstruction.
From: High-strength Damascus steel by additive manufacturing
a, The (Ni,Fe)3Ti precipitates are marked by a 10 at% Ti isocomposition surface in the APT reconstruction. b, Consecutive slices through the same dataset from one side of the tip to the other. Each slice is 10 nm thick and all Ti atoms within this slice are shown. This sequence of images illustrates the complex shape and morphology and three-dimensional arrangement of the network of η-phase (Ni,Fe)3Ti precipitates created by IHT during the DED process. c–f, Reconstruction of an APT volume that contains small spherical precipitates a few nanometres in diameter in addition to the plate-shaped interconnected network of precipitates. Both precipitate types are η-phase (Ni,Fe)3Ti and are marked by means of 10 at% Ti isocomposition surfaces. The plate-shaped network is depicted in dark green and the small spherical precipitates are depicted in light blue. In c, the whole dataset is shown, and in d–f, only a thin slice of 5 nm thickness is shown. In addition to the isocomposition surfaces, Ti atoms are shown in d–f. Panels e and f are enlarged sections of the image shown in c.
