Understanding the precise distribution of alloying elements, specifically oxygen, in the constituent phases is critical in controlling the mechanical properties of the additively manufactured titanium–iron–oxygen (Ti–0.34O-3.25Fe (wt.%)) alloys. Our Atom Probe Tomography results showcase the strong segregation of the O atoms near the α/β interface, forming a unique nano-heterogeneity from the interior of the α-lath (low O, ductile) to the interface regions (high O, strong).
Recorded on a LEAP 4000X Si™ at the University of Sydney, Australia.
Image courtesy of Simon P. Ringer and Hansheng Chen.
From Song et al. Strong and ductile titanium ̶ oxygen ̶ iron alloys by additive manufacturing . Nature, vol618 (2023).