Abstract
Titanium and its alloys have been widely used as biometals due to their excellent biocompatibility, corrosion resistance and moderate mechanical properties. Ti15Mo6Zr based alloy with addition iof chromium, manganese and iron were designed and fabricated by powder metallurgy for the first time to develop novel biomedical materials. The microstructure, the internal porosity and the mechanical properties of the sintered Ti15Mo6Zr and quaternary alloys were investigated by using scanning electronic microscopy (SEM), and bending tests. The experimental results indicated that the microstructure and mechanical properties of these alloys changed as different amounts of metals were added. The addition of small amounts of metals further increases β-phase stability, improving the properties of Ti15Mo6ZrxMe alloy. In the search for a better implant material, Ti15Mo6Zr2Cr, with its low modulus, ductile property, and reasonably high strength, is a promising candidate.
