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Beta type Zr-Ti-Nb-Ta-Sn system alloy low in elastic modulus and high in strength and preparation method of beta type Zr-Ti-Nb-Ta-Sn system alloy

A low elastic modulus, zr-ti-nb-ta-sn technology, applied in the field of biomedical materials, can solve the problems of high elastic modulus, mismatched elastic modulus, loose implant materials, etc. Improve and alleviate the effect of elastic modulus mismatch

Inactive Publication Date: 2017-08-25
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that the elastic modulus of titanium alloy is significantly higher than that of human bone, and the mismatch between elastic modulus and human bone will cause the implant material to loosen and cause implant failure.

Method used

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  • Beta type Zr-Ti-Nb-Ta-Sn system alloy low in elastic modulus and high in strength and preparation method of beta type Zr-Ti-Nb-Ta-Sn system alloy
  • Beta type Zr-Ti-Nb-Ta-Sn system alloy low in elastic modulus and high in strength and preparation method of beta type Zr-Ti-Nb-Ta-Sn system alloy
  • Beta type Zr-Ti-Nb-Ta-Sn system alloy low in elastic modulus and high in strength and preparation method of beta type Zr-Ti-Nb-Ta-Sn system alloy

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Experimental program
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Embodiment 1

[0037] 1. Selecting the industrial materials with a purity of more than 99% as raw materials, the raw material composition ratio of the β-type Zr-Ti-Nb-Ta-Sn alloy of the present invention: zirconium is 73.0wt.%, and titanium is 20.5wt.%. , niobium is 3.5wt.%, tantalum is 0.5wt.%, tin is 2.5wt.%.

[0038] 2. Preparation method:

[0039] (1) Weighing of raw materials: industrial materials with a purity of more than 99.0% are selected as raw materials, and the ingredients are weighed according to the following weight percentages: zirconium is 73.0%, titanium is 20.5%, niobium is 3.5%, tantalum is 0.5%, tin 2.5%.

[0040] (2) Raw materials are mixed, and the weighed zirconium, titanium, niobium, and tantalum are mixed evenly by stirring and mixing, and the tin is placed separately without participating in the mixing.

[0041] (3) Raw material smelting, using a water-cooled copper crucible non-consumable vacuum electric arc furnace to smelt the alloy. For the first smelting, the...

Embodiment 2

[0045] 1. Composition ratio: industrial materials with a purity of more than 99% are selected as raw materials, and the weight percentages of each component of the β-type Zr-Ti-Nb-Ta-Sn alloy are: zirconium is 62%, titanium is 24%, Niobium is 8%, tantalum is 2%, and tin is 4%.

[0046] 2. Preparation method:

[0047] (1) Raw materials are weighed, and ingredients are weighed according to the weight percentage of each component raw material;

[0048] (2) Raw materials are mixed, and the weighed zirconium, titanium, niobium, and tantalum are mixed evenly by stirring and mixing, and the tin is placed separately and does not participate in the mixing;

[0049] (3) Raw material smelting, using a water-cooled copper crucible non-consumable vacuum electric arc furnace to smelt the alloy. For the first smelting, the tin element with a low melting point is placed at the bottom of the crucible, and then the mixed zirconium, titanium, niobium, and tantalum are placed on the tin On the ...

Embodiment 3

[0053] 1. Composition ratio: industrial materials with a purity of more than 99% are selected as raw materials, and the weight percentages of each component of the alloy are: zirconium is 50.5%, titanium is 27.0%, niobium is 13.5%, tantalum is 2.5%, tin 6.5%.

[0054] 2. Preparation method:

[0055] (1) Raw materials are weighed, and ingredients are weighed according to the weight percentage of each component raw material;

[0056] (2) Raw materials are mixed, and the weighed zirconium, titanium, niobium, and tantalum are mixed evenly by stirring and mixing, and the tin is placed separately and does not participate in the mixing;

[0057] (3) Raw material smelting, using a water-cooled copper crucible non-consumable vacuum electric arc furnace to smelt the alloy. For the first smelting, the tin element with a low melting point is placed at the bottom of the crucible, and then the mixed zirconium, titanium, niobium, and tantalum are placed on the tin On the top of the crucibl...

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Abstract

The invention provides beta type Zr-Ti-Nb-Ta-Sn system alloy low in elastic modulus and high in strength and a preparation method of the beta type Zr-Ti-Nb-Ta-Sn system alloy. The beta type Zr-Ti-Nb-Ta-Sn system alloy is prepared by the following raw materials by weight through alloy smelting: 20.5%-27.0% of titanium, 3.5%-13.5% of niobium, 2.5%-6.5% of tin, 0.5%-2.5% of tantalum and the balance zirconium, and the weight percentage of the zirconium is larger than 50%. The beta type Zr-Ti-Nb-Ta-Sn system alloy has a single beta phase crystalline phase structure, the tensile elastic modulus is 38-45 GPa, and the tensile strength is 580-620 MPa. The raw materials used for preparing the beta type Zr-Ti-Nb-Ta-Sn system alloy are all non-cytotoxic elements; the problem that Mo, V and other elements are cytotoxic is solved, the tensile elastic modulus of the beta type Zr-Ti-Nb-Ta-Sn system alloy is similar to the elastic modulus of a human bone, and implant failure induced by elastic modulus mismatching between an implant and the human bone can be effectively relieved; and meanwhile, the beta type Zr-Ti-Nb-Ta-Sn system alloy has high tensile strength and can be widely used in the field of biomedical implant materials and the like.

Description

technical field [0001] The invention relates to the technical field of biomedical materials, in particular to a biomedical β-type Zr-Ti-Nb-Ta-Sn alloy with low elastic modulus and high strength and a preparation method thereof. Background technique [0002] Biomedical materials (or biomaterials for short) refer to materials that are used for medical purposes to diagnose, treat, repair or replace human tissues and organs or enhance their functions. According to the composition of biological materials, they can be divided into biomedical inorganic non-metallic materials, biomedical organic materials, biomedical metal materials, and biomedical composite materials. Among them, biomedical metal materials have become the most widely used force-bearing implant materials in clinical practice due to their characteristics such as easy processing and molding, high strength, and good toughness, such as fracture splints, orthopedic implants, various Dental materials, etc. [0003] Amon...

Claims

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Application Information

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IPC IPC(8): C22C16/00C22C1/02
CPCC22C16/00C22C1/02
Inventor 郭顺商铫郑琦田恬程晓农
Owner JIANGSU UNIV