Powder sintering of porous Ti-15Mo alloy from TiH_2 and Mo powders

摘要

Porous Ti-15Mo alloy is fabricated by powder sintering approach from TiH_2 and Mo powders. Space-holder of NH4HCO3 powder is used to regulate the pore characteristics and mechanical property. The investigation results indicate that the sintering temperature has a significant influence, while the addition of NH4HCO3 has little effect on the phase constituents of the sintered porous Ti-15Mo alloy. Pore characteristic parameters (mean pore size and porosity) and mechanical properties (ultimate compressive strength and elastic modulus under compression) of the sintered porous Ti-15Mo alloy vary with the adding amount of NH4HCO3, and match those of cancellous bones. The results indicate that it is expected to be used as a porous hard tissue implant.