Ti-aluminides reinforced Ti matrix composites were fabricated from 0.04 mm-thick Ti foils with 0.012 mm- and 0.024 mm-thick aluminum foils, using pulsed current hot pressing (PCHP) process, and the effect of holding temperature on the properties of the composites was investigated. The microstructure of the composite was an alternately laminated structure composed of Ti and reacted layers consisting of Ti-aluminides, and the reacted zones were composed of Ti-aluminides depending on the different holding temperatures. Tensile tests at room temperature revealed that the holding temperature is effective for the mechanical properties (yield stress, elongation and fracture mode) of the composites. The tensile strength and the elongation of the composite fabricated at 1273 K from 0.04-mm-thick Ti and 0.012-mm-thick Al foils showed 810 MPa and 3.64%, respectively, while they are 677 MPa and 3.44% for the composite fabricated at 1173 K. Microstructural observations of fractured specimens revealed that the Ti layers effectively bridged numerous cracks in the Ti-aluminides for the composites fabricated at 1173 K and 1273 K, which contributes to high ductility.
