Abstract
A new titanium alloy, Ti-5Al-13Ta, was designed for dental casting;its mechanical properties and corrosion resistance were investigated.The proof stress and the tensile strength of Ti-5Al-13Ta alloy were somewhat lower than those of Ti-6Al-4V or Ti-6Al-7Nb alloy but higher than those of Grade 3 titanium.However, the elongation of Ti-5Al-13Ta alloy was noticeably higher than that of the other two titanium alloys.This tendency appeared to be related to atomic numbers of the third element from the column Va.α and βphases were detected in these three alloys by XRD, which was thought to influence on their mechanical properties.These alloys also showed good corrosion resistance in cyclic voltammetry and immersion test.From these results, Ti-5Al-13Ta alloy was considered applicable to dental casting.
