Electrochemical and Mechanical Properties of Cast Ti-V Alloys for Dental Applications

A series of Ti-chi V alloys with a vanadium (V) content ranging from 5 to 20 wt% were fabricated to investigate phase/microstructure, various mechanical, and electrochemical properties. The microstructural samples were characterized using X-ray diffractometry (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). All the Ti-chi V alloys showed colonies of hexagonal close packed (hcp) alpha-phase lamellae within large body centered cubic (bcc) beta-phase grains of several lath boundaries. As a result of solid-solution strengthening of alpha-Ti and beta-Ti phase matrix, the Ti-chi V showed better mechanical properties than the commercially pure titanium (cp-Ti). Based on the electrochemical results, the Ti-5V alloy exhibited improved corrosion resistance as compared with cp-Ti.