Process for preparing biomedical beta-titanium alloy

Abstract

The invention discloses a process for preparing a biomedical beta-titanium alloy. The process comprises the following steps: A) alloy preparation; B) surface coating; C) hot forging and cogging; D) hot rolling; E) cold rolling and molding; and F) heat treatment. In the process, the material is manufactured to a 2mm plate after the beta-titanium alloy is subjected to high vacuum electric arc melting, repeated stirring, casting, phase transformation point measuring, homogenization under the protection of vacuum and argon, coating, hot forging, hot rolling, cold rolling, solid solution, water quenching, artificial aging and water cooling so as to prepare the biomedical beta-titanium alloy with excellent comprehensive performance. The process is a biomedical beta-titanium preparation process capable of improving the material strength, abrasion resistance and corrosion resistance, reducing the elasticity modulus of the material, and maintaining excellent manufacturing and molding performance of the material.

Description

technical field [0001] The invention relates to a preparation process of a titanium alloy, in particular to a preparation process of a biomedical β-titanium alloy material. Background technique [0002] Biomedical materials are an important branch of materials science. They are new carrier materials with high technical content and high economic value, which are used to diagnose, treat or replace human tissues, organs or enhance their functions. They are a developing field in materials science and technology. New Field. Biomedical materials have made greater contributions to exploring the mysteries of human life and ensuring human health and longevity. In the past 10 years, the market growth rate of biomedical materials and products has been maintained at 20%. It is estimated that in the next 10-15 years, the medical device industry, including biomedical materials, will reach the scale of the pharmaceutical product market and become the pillar industry of the world economy ...

AI Technical Summary

Problems solved by technology

However, due to the addition of refractory metal Ta to the alloy, its melting point is higher than that of the base metal Ti by more than 1300 degrees, it is generally difficult to dissolve in the form of pure metal, and it will exist in the alloy in the form of a simple substance, and in the subsequent processing process, This simple phase is easy to fall off, which will not achieve good results, and will affect the composition and performance of the material, so it is necessary to find a way to add Ta

In addition, titanium alloy has relatively high activity and is easily oxidized during thermal processing, which affects its overall performance. It is expected that a new process can ensure the process of preventing surface oxidation of titanium alloy during thermal processing, so as to ensure the processing performance and serviceability of the alloy.

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