The influence of addition of TiH2 in elemental powder sintering porous Ni–Ti alloys

TiH2 powder is added as a pore-forming and active agent in synthesis of porous Ni–Ti alloys by using a conventional powder sintering technique. The influence of addition of TiH2 on microstructure, memory characteristics and pseudoelasticity (PE) of porous Ni–Ti alloys is investigated. It is found that porous Ni–Ti alloys produced with or without addition of TiH2 exhibit good memory effect and PE, and the addition of TiH2 not only has a pronounced effect on the microstructure but also increases the shape memory effect (SME) and volume memory effect of porous Ni–Ti alloys. Further, the addition of TiH2 has a significant influence on the elastic behavior and Young’s modulus of porous Ni–Ti alloys.