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A magnesium-containing biological beta titanium alloy with micro/nano pores and preparation method thereof

A β-titanium alloy and nanoporous technology, applied in prosthetics, medical science, etc., can solve the problems of no obvious ability to induce bone formation, slow tissue integration, etc., and achieve the application range of large components, increased porosity, and high yield strength. Effect

Active Publication Date: 2022-02-25
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, due to the inertness of titanium alloys in the human body, there is no obvious ability to induce bone formation, resulting in slow integration with tissues

Method used

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  • A magnesium-containing biological beta titanium alloy with micro/nano pores and preparation method thereof
  • A magnesium-containing biological beta titanium alloy with micro/nano pores and preparation method thereof
  • A magnesium-containing biological beta titanium alloy with micro/nano pores and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0033] This embodiment provides a magnesium-containing biological β-titanium alloy with micro / nano pores, which comprises the following components in terms of mass percentage: 5% of pure magnesium powder and 95% of biological β-titanium alloy powder; The β-titanium alloy powder includes pure titanium powder and pure niobium powder, the pure titanium powder accounts for 60% of the total mass percentage of the magnesium-containing biological β-titanium alloy, and the pure niobium powder accounts for 35% of the total mass percentage of the magnesium-containing biological β-titanium alloy.

[0034] The above biological β-titanium alloy powder can also include but not limited to any pre-alloyed powder in titanium-niobium alloy powder, titanium-tantalum alloy powder, titanium-molybdenum alloy powder or titanium-niobium-zirconium alloy powder; or titanium, niobium, molybdenum and The zirconium metal powder is obtained according to the alloy composition ratio to obtain titanium-niobium...

Embodiment 2

[0042] The present embodiment provides a magnesium-containing biological β-titanium alloy with micro / nano pores, which comprises the following components in terms of mass percentage: 3% pure magnesium powder and biological β-titanium-molybdenum alloy powder (Ti-15Mo, mass score) 97%.

[0043] The above-mentioned magnesium-containing biological titanium-niobium alloy with micro / nano pores can be prepared by the following method, referring to figure 1shown, including the following steps:

[0044] Take 200-300-mesh pure magnesium powder and 200-300-mesh Ti-15Mo alloy powder, and mix according to the above mass percentages. The total mass of pure magnesium powder and titanium-molybdenum alloy powder was weighed to be 50g.

[0045] The pure magnesium powder and the titanium-molybdenum alloy powder are mechanically mixed by a planetary ball mill to form a mixed powder. The following ball milling process parameters are adopted: the ball-material ratio is 10:1, the ball milling spee...

Embodiment 3

[0049] This embodiment provides a magnesium-containing bio-titanium-niobium alloy with micro / nano pores, which comprises the following components in terms of mass percentage: 7% of pure magnesium powder and 93% of biological β-titanium, niobium and zirconium powder matrix.

[0050] The above-mentioned magnesium-containing biological β-titanium alloy with micro / nano pores can be prepared by the following method, referring to figure 1 shown, including the following steps:

[0051] Take 200-300-mesh pure magnesium powder, 100-200-mesh titanium-niobium-zirconium alloy powder, and mix according to the above mass percentages.

[0052] The pure magnesium powder and the titanium, niobium and zirconium alloy powder are mechanically mixed by a planetary ball mill to form a mixed powder. The following ball milling process parameters are adopted: the ball-to-material ratio is 20:1, the ball milling speed is 200rpm, and the ball milling time is 5h.

[0053] A planetary ball mill is used t...

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Abstract

The invention provides a magnesium-containing biological β-titanium alloy with micro / nano pores and a preparation method thereof, which comprises the following components in terms of mass percentage: 3%-7% of magnesium powder, and 93% of biological β-titanium alloy powder ‑97%; the method includes: mechanically mixing biological β-titanium alloy powder and magnesium powder to form mixed powder; performing mechanical alloying treatment on the mixed powder to obtain alloy powder; Due to the residual pores between the original particles and the volatilization of some magnesium elements due to high temperature to form micro- and nano-pore structures, the biological β-titanium alloy powder matrix is ​​fully sintered while some magnesium elements remain, and magnesium with micro / nano pores is obtained. Bio-beta titanium alloy. The process of the invention is simple, and the prepared magnesium-containing biological β-titanium alloy with micro / nano pore structure has good mechanical properties and biological activity, and has potential application prospects in the field of biological implantation.

Description

technical field [0001] The invention relates to the field of alloy materials, in particular to a magnesium-containing bio-β-titanium alloy with micro / nano pores and a preparation method thereof. Background technique [0002] Due to its excellent corrosion resistance, high mechanical properties and excellent biocompatibility with human tissues, titanium alloys have been widely concerned by researchers and have been used clinically for a long time. However, pure titanium and Ti-6Al-4V alloys commonly used in clinical implants have some obvious defects. Although pure titanium has good biological properties, its mechanical properties are relatively low, while Ti-6Al-4V alloy has been subject to some controversy because of its toxic Al and V elements. Moreover, these two materials have better elastic modulus than human bones, which are very easy to produce a stress shielding effect during the implantation process, resulting in implantation failure. Therefore, in response to thi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C14/00C22C1/04B22F3/105A61L27/06
CPCC22C14/00C22C1/0458B22F3/105A61L27/06B22F2003/1051
Inventor 董安平李仲杰邢辉杜大帆汪东红许浩孙宝德
Owner SHANGHAI JIAO TONG UNIV
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