“…It has already been demonstrated that the solid solutioning process does not destroy the corrosion-proof mechanism of pure Ti and pure Ta, and does not produce any toxicity [13,14]. On the contrary, the corrosion resistance of Ti-Ta alloys is superior to that of pure Ti, and increases with increasing Ta content [39]. Although some preliminary experiments have been performed and revealed the superior corrosion resistance and excellent biocompatibility of some Ti-Ta alloys, we are now doing more work to confirm the expected superiorities of these properties in the Ti-Ta alloys.…”