A method for preparing a low elastic modulus titanium alloy

Abstract

This application relates to the field of biomaterials technology, specifically disclosing a method for preparing a low-elastic-modulus titanium alloy. The chemical composition of the titanium alloy, by weight percentage, is: Al: 1.0%-3.5%, Mo: 14.5%-19%, Nb: 2.3%-5.0%, with the balance being Ti and unavoidable impurities. The preparation method includes the following steps: S1, material distribution and melting: The prepared alloy raw materials are uniformly distributed using a layered alternating spreading method to form electrodes, followed by vacuum arc melting to obtain an ingot; S2, hot working: The ingot obtained from melting is forged and rolled; S3, cold working and annealing: The hot-worked material is cold-worked, with the cold working deformation controlled at 40-80%, followed by annealing. The titanium alloy of this application can be used to prepare medical implant devices or eyeglass frames, possessing the advantages of high strength, low elastic modulus, and high elasticity.

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