A new Ni-free cold rolled Ti-24.8Nb-16.2Hf-1Zr alloy has been developed for being used in the load transfer field. The cold rolled alloy has low elastic modulus (46 GPa), attributed to the thermoelastic martensitic transformation and to the nanocrystalline structure.

The electrochemical behavior of a material influences its biological acceptability. With this purpose, the corrosion resistance and the surface oxide layer of the cold rolled and the untreated alloy have been investigated in this work. The corrosion behavior of the surface has been evaluated by means of open-circuit potential and cyclic polarization measurements. Both essays show a high corrosion resistance of the cold rolled surface, which is more stable than the Ti c.p. and the untreated alloy. Next, the surface oxides have been analyzed and quantified by using X-Ray spectroscopy. Results show a higher thickness of the oxide layer in the cold rolled alloy than in the untreated material.