Designing new biocompatible glass-forming Ti₇₅ˍₓ Zr₁₀ Nbₓ Si₁₅ (x = 0, 15) alloys : corrosion, passivity, and apatite formation

Glass-forming Ti-based alloys are considered as potential new materials for implant applications. Ti75-xZr10NbxSi15 alloys (free cytotoxic elements) can be produced as melt-spun ribbons with glassy matrix and embedded single β-type macrocrystals. The corrosion and passivation behavior of these alloys in their homogenized melt-spun states have been investigated in Ringer solution at 37º C in comparison to their cast multiphase crystalline counterparts and to cp-Ti and β-type Ti-40Nb. All tested materials showed very low corrosion rates as expressed in corrosion current densities i corr