X-ray diffraction line profile analysis of deformation microstructure in boron modified Ti-6Al-4V alloy

► Microstructural examination of hot compressed Ti64 with and without boron addition by XRDLPA. ► Smaller average domain size in alpha-phase compared to the corresponding alpha-phase in all cases. ► Higher microstrain and dislocation density for α phase and lower for β phase in case of Ti64+B. ► Decrease in domain size while increase in micro-strain and dislocation density with strain rate. ► Strain accumulation around TiB particles responsible for high dislocation density in α phase.