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High-intensity low modulus biological and medical use titanium alloy

A biomedical, low-modulus technology, applied in medical science, prosthesis, etc., can solve the problems of pressure-processed product forming, difficult machining, poor process formability, etc., achieving excellent biocompatibility and high alloy strength. , The effect of good process formability

Inactive Publication Date: 2007-06-27
DALIAN SUNNY TITANIUM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are very few types of titanium alloys that can be provided to the medical community at present. The Ti6Al4V alloy transplanted from the aviation industry is the most used in the hospital bed. Because this alloy contains metal vanadium, its toxicity has been recognized by the medical community. In addition, this alloy The formability of the process is not good, which brings difficulties to the pressure processing of the material and the molding and machining of the product.

Method used

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  • High-intensity low modulus biological and medical use titanium alloy

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Effect test

Embodiment 1

[0017] Embodiment 1: take sponge titanium, sponge zirconium, niobium-titanium master alloy as raw material preparation alloy material, the design mass of each component is respectively: titanium (Ti) 60 kilograms, niobium (Nb) 33 kilograms, zirconium (Zr) 7 kilograms . After the electrode is pressed, it is smelted into an ingot by secondary vacuum arc melting, the billet is opened at a temperature of (900-1050) ℃, and processed into a bar or a plate at a temperature of (800-900) ℃, and the total deformation is controlled at (65) ~95)%, heat treatment temperature is (500 ~ 800) ℃. Above-mentioned processing technology can be carried out by the method of prior art.

Embodiment 2

[0019] Sponge titanium, sponge zirconium, and niobium-titanium master alloy are used as raw materials to prepare alloy materials. The design masses of each component are: titanium (Ti) 57 kg, niobium (Nb) 34 kg, zirconium (Zr) 9 kg. After secondary vacuum arc melting into ingots, the billets are opened at a temperature of (900-1050) °C, and processed into bars or plates at a temperature of (800-900) °C, and the total deformation is controlled at (65-95) %, the heat treatment temperature is (500-800) °C. Above-mentioned processing technology can be carried out by the method of prior art.

Embodiment 3

[0021] Sponge titanium, sponge zirconium, and niobium-titanium master alloy are used as raw materials to prepare alloy materials. The design masses of each component are: titanium (Ti) 61 kg, niobium (Nb) 31 kg, zirconium (Zr) 8 g. After secondary vacuum arc melting into ingots, the billets are opened at a temperature of (900-1050) °C, and processed into bars or plates at a temperature of (800-900) °C, and the total deformation is controlled at (65-95) %, the heat treatment temperature is (500-800) °C. Above-mentioned processing technology can be carried out by the method of prior art.

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Abstract

The invention discloses an alloy, especially a high-strength low-modulus bio-medical titanium alloy. The alloy is characterized in that the alloy consists of Ti, Nb, and Zr, wherein the content of the components is as follows (by weight): Nb:31-34%, Zr:6-9%, Ti: the rest. Compared to conventional technology, the alloy provided by the invention has the following advantages: 1. good biocompatibility; 2. high alloy strength(-1050MPa); 3. elastic modulus 25-30% less than Ti#-[6]Al#-[4]V; 4. excellent fatigue strength and fracture toughness; 5. good technological formability.

Description

Technical field: [0001] The invention relates to an alloy material, in particular to a biomedical titanium alloy with high strength and low modulus. Background technique: [0002] At present, the most widely used metal materials for surgical implants in clinical practice are stainless steel, cobalt-based alloys, and titanium alloys. As an emerging metal material, titanium alloy has a strong growth in demand as an alternative implant product for human hard tissue repair due to its high specific strength, corrosion resistance, and good biocompatibility. However, there are very few types of titanium alloys that can be provided to the medical community at present. The Ti6Al4V alloy transplanted from the aviation industry is the most used in the hospital bed. Because this alloy contains metal vanadium, its toxicity has been recognized by the medical community. In addition, this alloy The formability of the process is not good, which brings difficulties to the pressure processing...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C14/00A61L27/06
Inventor 蒋志兰羽李海涛
Owner DALIAN SUNNY TITANIUM IND