Transformation behavior and superelastic properties of Ti-Ni-Ag scaffolds prepared by sintering of alloy fibers

Sintered Ti-Ni-Ag scaffolds possessed high porosity of 80% and large pores with size of 150-600 μm. The yield strength of the scaffold after annealed at 723 K for 3.6 ks was about 2.4 MPa. Ti-Ni-Ag scaffolds had an elastic modulus of 0.8 GPa, similar to that of spongy bone, and exhibited good superelasticity with superelastic recovery strain of 2.8% when 4% pre-strain was loaded at human body temperature. Those results would be available for applying Ti-Ni-Ag alloy scaffolds to replace damaged bones.136