Fabrication and surface modifications of titanium alloys for bone implant applications

The aim of this study is to develop new titanium alloys and their surface modifications for bone implant applications. To address the existing problems of high elastic modulus of pure titanium, development of new porous titanium alloys (Ti4Nb4Sn) and new titanium alloys with different silver content Ti-22Nb-6Zr-xAg (x = 0, 1, 2, and 3) were fabricated. This study evaluated the physical, structural and mechanical properties of the newly developed titanium alloys. The bactericidal effect of these titanium alloys was evaluated in order to know the effectiveness of silver in eradicating bacteria. Surface modifications onto these alloys were carried out using sputtering method.