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Method for preparing aluminum oxide nanostructure on surface of titanium alloy and improving antifouling property of titanium alloy

A technology of alumina nanometer and antifouling performance, which is applied in nanotechnology, metal material coating process, ion implantation plating, etc., can solve problems such as complex formation process, increase specific surface area and porosity, and improve antifouling Impairment of bio-adhesion performance and improvement of antifouling properties

Active Publication Date: 2021-04-16
SOUTHERN MARINE SCI & ENG GUANGDONG LAB (ZHUHAI) +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Micro-arc oxidation will form a layer of ceramic oxide film on the surface, and the formation process is complicated

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The titanium alloy plate is selected and cut into 30mm×30mm×5mm sheet samples as raw materials. The composition of the titanium alloy plate is shown in Table 1.

[0033] Table 1. Chemical composition of TC4 titanium alloy

[0034] element Fe C N H O Al V other impurities Ti content(%) 0.02 0.01 0.01 0.001 0.12～0.13 6.14～6.38 4.12～4.20 ≤0.4 margin

[0035] In this embodiment, the method for preparing aluminum oxide nanostructures on the surface of titanium alloy and improving its antifouling performance, the specific steps are as follows:

[0036](1) After the titanium alloy surface is polished, use 180#, 800#, 1500# metallographic sandpaper to polish in sequence until the surface has a metallic luster and no obvious defects on the surface can be seen, then rinse with water. Then put into acetone and ultrasonically clean for 30min, then ultrasonically clean with deionized water for 10min to remove the surface acetone; then use a m...

Embodiment 2

[0044] The titanium alloy plate is selected and cut into 30mm×30mm×5mm sheet samples as raw materials. The composition of the titanium alloy plate is shown in Table 1.

[0045] Table 1. Chemical composition of TC4 titanium alloy

[0046] element Fe C N H O Al V other impurities Ti content(%) 0.02 0.01 0.01 0.001 0.12～0.13 6.14～6.38 4.12～4.20 ≤0.4 margin

[0047] In this embodiment, the method for preparing aluminum oxide nanostructures on the surface of titanium alloy and improving its antifouling performance, the specific steps are as follows:

[0048] (1) After the titanium alloy surface is polished, use 180#, 800#, 1500# metallographic sandpaper to polish in sequence until the surface has a metallic luster and no obvious defects on the surface can be seen, then rinse with water. Then put into acetone and ultrasonically clean for 30min, then ultrasonically clean with deionized water for 20min to remove the surface acetone; then use a ...

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Abstract

The invention relates to the field of metal surface modification, in particular to a method for preparing an aluminum oxide nanostructure on the surface of a titanium alloy and improving the antifouling property of the titanium alloy. The method comprises the steps that firstly, after the surface of the titanium alloy is cleaned, a nanometer aluminum coating is arranged on the surface of the titanium alloy in a magnetron sputtering manner, through heat treatment in air, an unoxidized Al and Ti substrate forms an alloy layer through atom diffusion, a magnesium powder solid phase method is used for dealloying, and the titanium alloy with nanometer aluminum oxide particles dispersed on the surface is obtained through cleaning and drying; and then, the titanium alloy surface with the nanometer aluminum oxide particles deposited on the surface is subjected to chemical modification through an ethanol solution of (3, 3, 3-trifluoropropyl) methyldimethoxysilane, and the hydrophobic performance of the titanium alloy surface is further improved. The method is simple and feasible, an atomic diffusion alloy deposition layer and a stable aluminum oxide coating are obtained through heat treatment in air, and a dispersed aluminum oxide structure can be prepared on the titanium alloy surface.

Description

technical field [0001] The invention relates to the field of metal surface modification, in particular to a method for preparing an aluminum oxide nanostructure on the surface of a titanium alloy and improving its antifouling performance. Background technique [0002] Nano-porous metal surface is to prepare a certain thickness of nano-materials on the surface of metal materials, so as to present a porous structure on the surface of metal materials, which is a method of modifying the metal surface. Metals with a nanoporous surface have better physical and chemical properties than untreated metal surfaces, such as: increased specific surface area, increased porosity, increased surface contact angle, improved mechanical properties and corrosion resistance Performance improvements, etc. Therefore, the preparation of micro-nanostructures on the metal surface is conducive to improving its applications in nuclear energy, catalysis, anti-corrosion and other fields. [0003] Titani...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/35C23C14/16C23C14/58C23C22/02B82Y40/00
Inventor 吴进怡吴耀华柴柯
Owner SOUTHERN MARINE SCI & ENG GUANGDONG LAB (ZHUHAI)
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