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Method for preparing nanostructured bioactive oxide film on titanium alloy surface

A bioactive, nanostructured technology, applied in tissue regeneration, metal material coating process, prosthesis, etc., can solve the problem that the oxide layer does not have cell response ability, and achieve good cell response ability, biological activity, and good adhesion ability. , The effect of the process is easy to operate

Active Publication Date: 2017-03-08
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Induction heating technology itself is an efficient and green rapid oxidation method. Although the oxide layer prepared by induction heating technology on the surface of titanium alloy can improve the biological activity of titanium and titanium alloy, its biological activity needs to be further improved. capable of cellular response

Method used

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  • Method for preparing nanostructured bioactive oxide film on titanium alloy surface
  • Method for preparing nanostructured bioactive oxide film on titanium alloy surface
  • Method for preparing nanostructured bioactive oxide film on titanium alloy surface

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] 1. Titanium alloy (Ti6Al4V) samples were polished with 240#, 400#, 600# and 1000# SiC sandpaper in sequence, then ultrasonically cleaned with acetone, deionized water and alcohol in sequence, and then heated at 40°C Dry at high temperature for 24h;

[0048] 2. The titanium alloy sample dried in step (1) was subjected to ultrasonic shot peening treatment for 100s by ultrasonic shot peening equipment with a power of 1800W, an amplitude of 30μm, and a frequency of 20KHz. Ultrasonic cleaning for 5 minutes, and finally drying at 35°C for 6 hours; the diameter of the pellets used is D 丸 =1.5mm, the material of the shot is 304 cast steel, the hardness of the shot is 55HRC, and the speed of the shot is 20m / s during shot peening;

[0049] 3. Place the titanium alloy sample after step (2) ultrasonic shot peening in the induction coil of a super-audio frequency induction heating device with a rated power of 60kW, and add ferrite magnetizers on both sides of the induction coil; to...

Embodiment 2

[0053] 1. Titanium alloy (Ti6Al4V) samples were polished with 240#, 400#, 600# and 1000# SiC sandpaper in sequence, then ultrasonically cleaned with acetone, deionized water and alcohol in sequence, and then heated at 40°C Dry at high temperature for 24h;

[0054] 2. The titanium alloy sample dried in step (1) was subjected to ultrasonic shot peening treatment for 100 s by ultrasonic shot peening equipment with a power of 2200 W, an amplitude of 40 μm, and a frequency of 20 KHz, and after continuous stirring and soaking for 90 s, take out distilled water and alcohol. Ultrasonic cleaning for 5 minutes, and finally drying at 35°C for 6 hours; the diameter of the pellets used is D 丸 =1.5mm, the material of the shot is 304 cast steel, the hardness of the shot is 55HRC, and the speed of the shot during shot peening is 18m / s;

[0055] 3. Place the titanium alloy sample after step (2) ultrasonic shot peening in the induction coil of a super-audio frequency induction heating device w...

Embodiment 3

[0057] 1. Titanium alloy (Ti6Al4V) samples were polished with 240#, 400#, 600# and 1000# SiC sandpaper in sequence, then ultrasonically cleaned with acetone, deionized water and alcohol in sequence, and then heated at 40°C Dry at high temperature for 24h;

[0058] 2. The titanium alloy sample dried in step (1) was subjected to ultrasonic shot peening treatment for 100s by ultrasonic shot peening equipment with a power of 1800W, an amplitude of 30μm, and a frequency of 20KHz. Ultrasonic cleaning for 5 minutes, and finally drying at 35°C for 6 hours; the diameter of the pellets used is D 丸 =1.5mm, the material of the shot is 304 cast steel, the hardness of the shot is 55HRC, and the speed of the shot during shot peening is 23m / s;

[0059] 3. Place the titanium alloy sample after step (2) ultrasonic shot peening in the induction coil of a super-audio frequency induction heating device with a rated power of 60kW, and add ferrite magnetizers on both sides of the induction coil; to...

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Abstract

The invention discloses a method for preparing a nanostructured bioactive oxide film on the titanium alloy surface. The method comprises the steps of ultrasonic shot peening of titanium alloy and induction heating oxidation treatment, wherein ultrasonic shot peening of the titanium alloy is characterized in that the titanium alloy is treated for 97-103 s by ultrasonic shot peening equipment with power of 1800 W under conditions that the amplitude is 30 mu m and the frequency is 20 KHz, or the titanium alloy is treated for 97-103 s by the ultrasonic shot peening equipment with power of 2200 W under conditions that the amplitude is 30 mu m and the frequency is 20 KHz; the induction heating oxidation treatment is performed at follows: the titanium alloy after ultrasonic shot peening treatment is subjected to supersonic frequency induction heating for 20-35 s. The nanostructured bioactive oxide film prepared with the method can remarkably improve the bioactivity, biocompatibility and cell responsiveness of titanium and the titanium alloy implanted in vivo.

Description

technical field [0001] The invention belongs to the technical field of surface modification of biomedical metal materials, and in particular relates to a method for preparing a nanostructure bioactive oxide film on the surface of a titanium alloy by ultrasonic shot peening combined with induction heating technology. Background technique [0002] Due to their excellent mechanical properties and biocompatibility, titanium and its alloys are widely used in the clinical fields of orthopedics, orthopedics and dentistry. However, titanium and its alloys have poor osteoinductive ability and are biologically inert. Therefore, it is necessary to modify its surface to improve its biological activity, osteoinductivity and corrosion resistance, etc., so that it can be better used in the field of medical implants. The surface modification methods of titanium and its alloys currently used in the medical field can be roughly divided into mechanical methods, chemical methods, and physical ...

Claims

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Application Information

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IPC IPC(8): C22F1/18C23C8/12C23F17/00A61L27/30A61L27/06
CPCA61L27/06A61L27/306A61L2420/02A61L2430/02A61L2430/12C22F1/183C23C8/12C23F17/00
Inventor 肖桂勇李宁波吕宇鹏许文花
Owner SHANDONG UNIV
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