US Patent 7682473 Ti, Al and Nb alloys

A method for forming a finished implant prosthesis which comprises:(a) providing an unforged alloy consisting essentially of Ti(x %)Al(y %)Nb wherein x is between about 45 to 54% by atoms, y is between about 15 to 25% by atoms and the balance is niobium;(b) forging the alloy at an elevated temperature below a melting point of the alloy in a shape which is an implant preform; and(c) machining the implant preform to provide a machined implant; and(d) finishing the exposed surfaces of the implant so as to provide the exposed surfaces with a finish which provides biocompatibility, to thereby form the implant prosthesis.