Powder sintering of porous Ti–15Mo alloy from TiH2 and Mo powders

Porous Ti–15Mo alloy is fabricated by powder sintering approach from TiH2 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.