Estado da arte em ligas multicomponente biocompatíveis contendo Ti, Nb e Zr

Abstract

The present work aims to study biomaterials that are used in implants, aiming to understand the potential of titanium alloys containing stabilizing elements such as niobium and zirconium, these elements improve mechanical properties and biocompatibility with human bone. Quaternary and ternary alloys will be addressed, illustrating this potential for improvement. Alloys containing these elements showed a significant reduction in the elastic modulus of titanium alloys compared to Co-Cr alloys, Stainless Steel 304 and 316 and Ti-64 Alloys, which is an important property for the implant to behave similarly. to human bone, which has a modulus of approximately 17 GPa. In addition, titanium alloys are the best for acquiring the mechanical and chemical properties to which the implant will be requested. The Ti-13Nb-6Ta-7Zr and Ti-7Nb-6Ta-13Zr alloys have a modulus of elasticity of 46 GPa, being very suitable for an implant, in addition to having excellent hardness and corrosion resistance properties. The Ti-13Nb-13Zr alloy.