Fig. 3: Microstructure of Ti-0.45O-4Fe alloy after PBF-LB plus annealing at 800 °C for 1 h.
From: Oxygen-mediated high uniform plasticity in α-β titanium alloys
a Lamellar α−β and grain boundary (GB)-α. The bright phase is the Fe-rich β-phase, while the dark phase is the Fe-poor α-phase. b Blunted α lamellae after annealing. c Only a small number of dislocations were observed in α and β phases after annealing. d Dislocation slip across multiple locations of the α−β interface, photographed for imaging at g = {10\(\bar{1}\)0}. e Coherent α−β interface. The (0001)α plane is parallel to the {1\(\bar{1}\)0}β plane. The (a) is a back-scattered electron (BSE) image, (b–d) are bight field TEM images, and (e) is a high-resolution TEM image.
