Fig. 4: Atom probe tomography (APT) characterization of the newly developed alloys.
From: Designing against phase and property heterogeneities in additively manufactured titanium alloys
a, b 3D reconstruction (also in Supplementary Movie 1) of Fe distribution in the samples with different Fe2O3 addition levels (A, 50Ti−0.25O, B, 50Ti−0.50O). c, d Proximity histograms across the β phase in (a) (marked with dashed black cycle) and (b) (marked with black dashed rectangle) showing enrichment (Fe and V) and depletion (O and Al) of alloying elements in the β phase. e The element partitioning ratio K−1 (which is defined by Cβ/Cα, where Cβ is the concentration inside the enriched features and Cα outside these regions) of Fe, V, Al, and O derived from the APT data. Note that high partitioning ratios suggest a strong accumulation of an element in these regions, while K−1 < 1 indicates elemental depletion. It can be seen that Fe shows much higher partitioning rates than V. The error bars denote the standard deviation of the mean.
