Comparison of the Deformation Microstructures at Room Temperature in O and B2 Phases of a Ti₂AlNb Alloy

Abstract
The dislocation microstructures in both O and B2 single phases of a Ti₂AlNb alloy, deformed at room temperature, are reported. Slip systems activated during the deformation of each phase are determined using weak-beam electron microscopy and the correspondence between the deformation processes is made. It is shown that the better ductility of the B2 phase compared to the O phase is related to the number of activated slip systems.