Biocompatibility of new Ti
By Abdelrahman H. Hussein and Mohamed A.-H. Gepreel and Mohamed K. Gouda and Ahmad M. Hefnawy and Sherif H. Kandil
Published in Materials Science and Engineering: C
2016
Abstract
?-type titanium alloys are promising materials in the field of medical implants. The effect of ?-phase stability on the mechanical properties, corrosion resistance and cytotoxicity of a newly designed ?-type (Ti77Nb17Ta6) biocompatible alloys are studied. The ?-phase stability was controlled by the addition of small quantities of Fe and O. X-ray diffraction and microstructural analysis showed that the addition of O and Fe stabilized the ?-phase in the treated solution condition. The strength and hardness have increased with the increase in ?-phase stability while ductility and Young's modulus have decreased. The potentio-dynamic polarization tests showed that the corrosion resistance of the new alloys is better than Ti