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High-Mo-content biomedical beta-titanium alloy and preparation method thereof

A biomedical, titanium alloy technology, applied in the field of biomedical applications, can solve the problems of less research on related properties, and achieve the effect of excellent biocompatibility

Inactive Publication Date: 2017-05-17
GUANGXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Sn element can increase the solid solubility of Ti in Mo, and there are few studies on the related properties of Ti-Mo-Sn alloys

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0014] 2. Embodiment 2: alloy material Ti 70 Mo 25 sn 5

[0015] The powder metallurgy method is used to precisely control the components of the alloy, and the metal components of each component are ground into powder, the particle size is less than 300 mesh, and the metal components are weighed according to the measurement and mixed evenly. In a high-vacuum quartz tube, then heated to a certain temperature, and kept for a period of time, you can get Ti 70 Mo 25 sn 5 alloy.

[0016] Referring to Example 1, the phases contained in the alloy are MoTi (β-Ti structure), SnTi3 (α-Ti structure), the Vickers hardness value is 656, and the bulk modulus B 131.68GPa, shear modulus G is 20.63GPa, and Young's modulus is 58.83GPa.

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PUM

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Abstract

The invention discloses a high-Mo-content biomedical beta-titanium alloy and a preparation method thereof. The alloy comprises three alloy elements including titanium (Ti), molybdenum (Mo) and stannum (Sn). Alloy components of the alloy comprise, by weight percent, 20%-60% of the molybdenum (Mo), 0-20% of the stannum (Sn) and the balance titanium (Ti). The alloy is prepared through a high-temperature melting method, an electric arc melting method, a powder metallurgic method, a high-frequency induction method or a mechanical alloy method. The alloy has the following beneficial effects that the alloy elements including molybdenum and stannum completely compatible with the human body are selected, excellent biocompatibility is achieved, and toxicity is avoided; and the elasticity modulus is low (E=50-60 GPa) and is lower than that of a Ti-6Al-4V alloy by 40%-50%. The alloy can be used as a biomedical titanium alloy for dentistry and is mainly used for clinic mouth rehabilitation, implanting, orthodontics and the like.

Description

technical field [0001] The invention belongs to the field of biomedical applications, in particular to a dental biomedical β-titanium alloy with high Mo content, which is mainly used for clinical oral restoration, implantation, orthodontics and the like. Background technique [0002] Titanium and titanium-based alloys have become the most widely used biomaterials for human implantation due to their high corrosion resistance, excellent biocompatibility, and excellent mechanical properties. Titanium has two allotropes, α-Ti with a hexagonal close-packed structure and β-Ti with a body-centered cubic structure. α-Ti and α-Ti alloys have lower elastic modulus compared to other kinds of metallic biomaterials, but still much higher than that of human bone. The difference in Young's modulus between human bone and metallic biomaterial implants can induce stress shielding effects, which can easily lead to postoperative bone resorption or surgical failure. The modulus of elasticity o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C14/00C22C1/02C22C1/04
CPCC22C14/00C22C1/02C22C1/0458
Inventor 何维陈春梅丁丽婧
Owner GUANGXI UNIV
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