Electron microscopic study of Ti3Al microstructure after deformation at 1073–1273 K

Preparation of a novel layer-structured Ti3Al matrix composite sheet by liquid–solid reaction between Al foils and TiB/Ti composite foils

“…As reported in the previous literatures [18,19,21,22], at 500°C the major deformation mode in the Ti 3 Al matrix layers was by the movement of 1/3h1120i dislocations on f1010 g prismatic planes, {0001} basal planes and f1011g pyramidal planes. Although the majority of dislocations were homogenously distributed in the Ti 3 Al grains, however, unstable shear occurred locally on both basal and prism planes, as a result of dislocation pileups, which resulted in the stress concentration at grain boundaries of Ti 3 Al phases.…”