Sintering behavior of mechanically alloyed $\mathrm{Ti}$–$48\mathrm{Al}$–$2\mathrm{Nb}$ aluminides

$\mathrm{Ti}$–$\mathrm{Al}$ intermetallics have been produced using mechanical alloying technique. A composition of $\mathrm{Ti}$–$48\mathrm{Al}$–$2\mathrm{Nb}$ at $\%$ powders was mechanically alloyed for various durations of $20$, $40$, $60$, $80$ and $100$ h. At the early stages of milling, a $\mathrm{Ti (Al)}$ solid solution is formed, on further milling the formation of amorphous phase occurs. Traces of $\mathrm{TiAl}$ and $\mathrm{Ti_3Al}$ were formed with major $\mathrm{Ti}$ and $\mathrm{Al}$ phases after milling at $40$ h and beyond. When further milled, phases of intermetallic compounds like $\mathrm{TiAl}$ and $\mathrm{Ti_3Al}$ were formed after $80$ hours of milling and they also found in $100$ h milled powders. The powders milled for different durations were sintered at $785^\circ$C in vacuum. The mechanically alloyed powders as well as the sintered compacts were characterized by XRD, FESEM and DTA to determine the phases, crystallite size, microstructures and the influence of sintering over mechanical alloying.