A lightweight Ti-10Al-5Mg (wt.%) alloy was synthesized by mechanical alloying followed by cold compaction and sintering. A metastable hcp alpha-Ti(Al,Mg) solid solution was obtained after 5 h of milling. The c/a ratio of the hcp structure was found to increase with milling time. The particle size distribution of the mixture becomes broader and the dp50 value decreases as the milling time increases. The structure of the 900 and 1,100 degrees C sintered samples consist of an alpha-Ti(Al) solid solution matrix with alpha(2)-Ti3Al and MgO precipitates. Values of 11 and 188 GPa were obtained for the Hardness and Young's modulus of 1,100 degrees C sintered sample, respectively, confirming the strength improvement of the Ti-based alloy.