A kind of biomedical alloy material and preparation method thereof

Abstract

The invention relates to a biomedical alloy material and a preparation method thereof, and relates to the field of alloy materials and preparation thereof. The biomedical alloy material and the preparation method thereof aim to solve the problems that an existing biomedical material is poor in biocompatibility, is large in difference with natural bones in the aspect of elasticity modulus, and is required to be improved in the aspect of the comprehensive mechanical property. The molecular formula of the biomedical alloy is TiNbMo<c>Sn<d>Hf<e>. The preparation process of the biomedical alloy material comprises the following steps that (1) powder is prepared, specifically, the metal powder is prepared according to the atomic percentage of elements in the molecular formula TiNbMo<c>Sn<d>Hf<e>; (2) the powder is mixed, specifically, the prepared powder is uniformly mixed on a V-shaped powder mixer; (3) pressing and briquetting are conducted, specifically, cold pressing forming is conducted on the mixed powder through a press; and (4) smelting is conducted to obtain the alloy, specifically, a pressed and briquetted sample is smelted by using a vacuum non-consumable arc melting furnace. The TiNbMoSnHf medical alloy prepared through the method is mainly composed of a BCC solid solution phase and a small number of alpha" martensite phases, the material prepared through the method has the advantages of being good in biocompatibility, high in wear resistance, low in elastic modulus, good in comprehensive mechanical property and the like, and the alloy has a wide application prospect in the biomedical field.

Description

technical field [0001] The invention relates to a biomedical alloy material and a preparation method thereof, in particular to a TiNbMoSnHf biomedical alloy with good biocompatibility, high wear resistance, low elastic modulus and good comprehensive mechanical properties and a preparation method thereof The invention belongs to the technical field of alloy material and its preparation. Background technique [0002] The research enthusiasm for biomedical metal materials has only increased in recent years, and has experienced the development of multiple generations of alloy components. At present, the medical metal materials that have been used clinically mainly include stainless steel, Co-based alloys, titanium and titanium alloys, etc., but they face a common problem: the comprehensive mechanical properties need to be improved: first, the elastic modulus is relatively high , which is quite different from the natural bone, which produces a stress shielding effect, reduces th...

AI Technical Summary

Problems solved by technology

At present, the medical metal materials that have been used clinically mainly include stainless steel, Co-based alloys, titanium and titanium alloys, etc., but they face a common problem: the comprehensive mechanical properties need to be improved: first, the elastic modulus is relatively high , which is quite different from the natural bone, which produces a stress shielding effect, reduces the load on the natural bone, and is prone to the risk of osteoporosis and secondary fractures; the second is that the wear resistance needs to be improved; and in clinical applications, it is currently widely used The Ti6Al4V alloy, recent studies have found that V, Al and other elements in the Ti6Al4V alloy have strong contact toxicity to cells, and it is not suitable to add such elements in biomedical alloys

[0004] In summary, the use of existing biomedical materials has been difficult to meet people's needs, and the development of a biomedical alloy with excellent performance will greatly expand the application prospects of alloys in the field of biomedical materials The development of medical materials provides more space

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