Microstructure and Corrosion Behavior of TiMoZrXSi Biomaterial Focused on Hip Prosthesis

Abstract

Biomaterials are designed to act with biological systems by evaluating, treating or replacing some tissue, organ or body function. Since the hip supports 9 to 12 times a person's weight, hip prostheses need to be made mainly of metallic materials. Currently, the most used metallic material for orthopedic applications is titanium with the respective alloys given which provide better properties. Titanium alloys are classified into alpha, alpha-beta and beta alloys which depend on the predominant alpha and beta phases in the microstructure at room temperature [1]. Nonetheless, the alloy Ti6Al4V presents certain difficulties since aluminum can cause, in high concentrations, dementia or problems to the central nervous system in addition to vanadium which is a toxic element and can produce adverse effects on tissues [2].