AN X-RAY-DIFFRACTION METHOD OF EXAMINING PHASE-TRANSITIONS IN SINGLE-CRYSTALS OF TITANIUM-BASE ALLOYS

The article proposes a method applicable to phase transitions in quenched titanium alloys occurring on heating, based on recording Bragg reflections from the matrix beta phase and from particles of a single crystallographic orientation of the phase deposited in the transformation omega , alpha double prime , and alpha ). Certain planes in the particles are distinguished in the Bragg positions by means of orientation relations (OR) between the lattices of the beta matrix and the omega , alpha double prime , and alpha phases. Abundant experimental evidence on the realization of these OR in phase transitions in single-crystal titanium alloys was utilized.