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Biomedical beta-titanium alloy material and preparation method

A biomedical, titanium alloy technology, applied in medical science, prosthesis, etc., can solve the problems of simplification of use, containing toxic elements, etc., and achieve the effect of increasing strength

Inactive Publication Date: 2013-01-30
BAOJI TITANIUM IND +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the shortcomings of the existing biomedical titanium alloys, which have a high elastic modulus, contain toxic elements, and have single uses, the present invention provides a high niobium content with an elastic modulus closer to the elastic modulus of human bones and without toxic elements. Biomedical β-titanium alloy material and preparation method thereof

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Effect test

Embodiment 1

[0035] 1. Ingredients: Ti-36Nb-10Zr-2Sn-0.2O alloy, in which Ti is sponge titanium, Zr is sponge zirconium, high melting point element Nb and volatile element Sn are all in the form of Ti-52Nb and Ti-80Sn master alloys respectively To add, the content of O is controlled by the content of oxygen in the sponge Ti. Ingredients are formulated according to the mass percentage of the alloy composition.

[0036] 2. Smelting: The prepared raw materials are pressed into electrodes on a hydraulic press, and smelted twice in a vacuum consumable electric arc furnace. The vacuum degree is not lower than 10 before each smelting. -2 Pa, made alloy ingot. After sufficient cooling, samples were taken for differential thermal analysis and metallographic analysis, and the β→α phase transition temperature of the alloy was measured, and chemical methods were used to analyze whether there was composition segregation in the ingot. Then perform homogenization annealing (with Ar gas protection) in a...

Embodiment 2

[0046] 1. Ingredients: Ti-36Nb-10Zr-5Sn-0.3O alloy, in which Ti is sponge titanium, Zr is sponge zirconium, high melting point element Nb and volatile element Sn are all in the form of Ti-52Nb and Ti-80Sn master alloys respectively To add, the content of O is controlled by the content of oxygen in the sponge Ti. Ingredients are formulated according to the mass percentage of the alloy composition.

[0047] 2. Smelting: The prepared raw materials are pressed into electrodes on a hydraulic press, and smelted twice in a vacuum consumable electric arc furnace. The vacuum degree is not lower than 10 before each smelting. -2 Pa, made alloy ingot. After sufficient cooling, samples were taken for differential thermal analysis and metallographic analysis, and the β→α phase transition temperature of the alloy was measured, and chemical methods were used to analyze whether there was composition segregation in the ingot. Then perform homogenization annealing (with Ar gas protection) in a...

Embodiment 3

[0057] 1. Ingredients: Ti-35Nb-10Zr-8Sn-0.2O alloy, in which Ti is sponge titanium, Zr is sponge zirconium, high melting point element Nb and volatile element Sn are all in the form of Ti-52Nb and Ti-80Sn master alloys respectively To add, the content of O is controlled by the content of oxygen in the sponge Ti. Ingredients are formulated according to the mass percentage of the alloy composition.

[0058] 2. Smelting: The prepared raw materials are pressed into electrodes on a hydraulic press, and smelted twice in a vacuum consumable electric arc furnace. The vacuum degree is not lower than 10 before each smelting. -2 Pa, made alloy ingot. After sufficient cooling, samples were taken for differential thermal analysis and metallographic analysis, and the β→α phase transition temperature of the alloy was measured, and chemical methods were used to analyze whether there was composition segregation in the ingot. Then perform homogenization annealing (with Ar gas protection) in a...

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Abstract

The invention relates to a biomedical beta-titanium alloy material and a preparation method, and belongs to the technical field of preparation of titanium alloy materials with high niobium content. The alloy comprises the following components in percentage by mass: 30-40 percent of Nb, 5-15 percent of Zr, 1-10 percent of Sn, 0.1 and 0.3 percent of O and the balance of Ti. The titanium alloy has high comprehensive performance, and the strength and the elastic modulus of the alloy can be modulated and controlled by different heat treatment processes; the elastic modulus E of the alloy is 40-68GPa; the yield strength sigma 0.2 is 580-800MPa; the tensile strength sigma b is 750-1120MPa; the elongation ratio epsilon is 12-48 percent; and the section shrinking percentage is 36-65 percent. The titanium alloy does not contain toxic elements, has excellent corrosion resistance, biocompatibility and cold treating performance, and can perform cold rolling in a large deformation amount. The titanium alloy is wide in use, so that the titanium alloy can be used for manufacturing tissue recovery or replacement materials of a human body of mouth rehabilitation, artificial bone, joint prosthesis and the like, and also can be used for manufacturing machines in sports and industry.

Description

technical field [0001] The invention relates to a biomedical β-titanium alloy material and a preparation method thereof, in particular to a biomedical β-titanium alloy material with high niobium content and a preparation method thereof, belonging to the technical field of titanium alloy material preparation. Background technique [0002] Compared with traditional medical metal materials such as stainless steel and cobalt-chromium-molybdenum alloys, titanium and titanium alloys have gradually become the most important medical materials for orthopedics, implants, and oral restorations due to their good comprehensive mechanical properties, corrosion resistance, and excellent biocompatibility. material of choice in the field. [0003] The development of biomedical titanium and titanium alloys can be divided into three eras. The first era is represented by pure titanium (α type) and Ti-6A1-4V (α+β type). In the 1950s, people began to use pure titanium to manufacture bone plates ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C14/00C22C1/02C22F1/18A61L27/06
Inventor 刘会群易丹青高颀李献民许艳飞
Owner BAOJI TITANIUM IND
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