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Titanium alloy surface repairing and strengthening functional coating integrated coating material and preparation method and application thereof

A technology for surface repair and coating materials, which is applied in the direction of metal material coating technology, coating, ion implantation plating, etc., can solve the problems of poor wear resistance and high temperature resistance, poor bonding force, low hardness, etc., and achieve improvement The effect of impact resistance

Pending Publication Date: 2022-04-08
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Another object of the present invention is to provide a method for preparing a coating material integrated with the above-mentioned titanium alloy surface repair and strengthening functional coating; the method is prepared by vacuum arc deposition and magnetron sputtering composite physical vapor deposition method and the The coating material is applied to the titanium alloy drive shaft parts of aviation and aerospace, which solves the shortcomings of the traditional parts such as low hardness, poor wear resistance and high temperature resistance, and poor bonding force, and realizes the function of repairing and strengthening the surface size of the part Coating integration requirements

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  • Titanium alloy surface repairing and strengthening functional coating integrated coating material and preparation method and application thereof

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Effect test

Embodiment 1

[0042] A coating material integrating titanium alloy surface repair and strengthening functional coating, using Ti-6Al-4V titanium alloy as the base material, is controllably prepared by vacuum arc ion deposition and magnetron sputtering composite technology, the specific steps as follows:

[0043] (1) Pre-preparation of the base material: grinding the surface of the titanium alloy to remove the oxide film on the surface of the titanium alloy;

[0044] (2) Surface cleaning of the substrate material: Ultrasonic cleaning of the titanium alloy substrate in acetone for 9 minutes, then ultrasonic cleaning in absolute ethanol for 8 minutes, and finally ultrasonic cleaning in deionized water for 10 minutes to remove surface grease and pollutants, and then blow dry. Make the surface of the original titanium alloy smooth; after drying, fix it on the workpiece rack in the vacuum chamber, and the distance between the titanium alloy workpiece and the Ti target is 30cm;

[0045] (3) Surfa...

Embodiment 2

[0053] A coating material integrating titanium alloy surface repair and strengthening functional coating, using Ti-6Al-4V titanium alloy as the base material, is controllably prepared by vacuum arc ion deposition and magnetron sputtering composite technology, the specific steps as follows:

[0054] (1) Pre-preparation of the base material: grinding the surface of the titanium alloy to remove the oxide film on the surface of the titanium alloy;

[0055] (2) Surface cleaning of the substrate material: Ultrasonic cleaning of the titanium alloy substrate in acetone for 9 minutes, then ultrasonic cleaning in absolute ethanol for 8 minutes, and finally ultrasonic cleaning in deionized water for 10 minutes to remove surface grease and pollutants, and then blow dry. Make the surface of the original titanium alloy smooth; dry it and fix it on the workpiece rack in the vacuum chamber, the distance between the titanium alloy workpiece and the Ti target is 35cm;

[0056] (3) Surface pret...

Embodiment 3

[0062] A coating material integrating titanium alloy surface repair and strengthening functional coating, using Ti-6Al-4V titanium alloy as the base material, is controllably prepared by vacuum arc ion deposition and magnetron sputtering composite technology, the specific steps as follows:

[0063] (1) Pre-preparation of the base material: grinding the surface of the titanium alloy to remove the oxide film on the surface of the titanium alloy;

[0064] (2) Surface cleaning of the substrate material: Ultrasonic cleaning of the titanium alloy substrate in acetone for 9 minutes, then ultrasonic cleaning in absolute ethanol for 8 minutes, and finally ultrasonic cleaning in deionized water for 10 minutes to remove surface grease and pollutants, and then blow dry. Make the surface of the original titanium alloy smooth; dry it and fix it on the workpiece rack in the vacuum chamber, the distance between the titanium alloy workpiece and the Ti target is 40cm;

[0065] (3) Surface pret...

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Abstract

The invention belongs to the technical field of surface modification, and discloses a titanium alloy surface repairing and strengthening functional coating integrated coating material and a preparation method and application thereof. The coating material sequentially comprises a high-hardness and self-lubricating functional surface layer, a wear-resistant, high-temperature-resistant and oxidation-resistant strengthening layer, a transition layer (moderate in hardness) and a size repair layer with strong film-substrate combination, the size repair layer is located on the surface of a substrate and is composed of Ti, the transition layer is composed of TiAl, the strengthening layer is composed of TiAlN, and the thickness of the size repair layer is larger than that of the substrate. And the functional surface layer is made of DLC (Diamond Like Carbon). The coating material has the advantages of being high in hardness, good in abrasion resistance, high temperature resistance and oxidation resistance and capable of achieving repairing and strengthening integration and multiple functions. A vacuum arc deposition and magnetron sputtering composite physical vapor deposition method is adopted for preparation, the coating material can be used for surface protection of a titanium alloy transmission part, and the coating material plays an important role in improving the reliability and stability of manufacturing equipment in China.

Description

technical field [0001] The invention relates to a method for modifying the surface of a titanium alloy, which belongs to the technical field of surface modification, and in particular to a coating material integrating titanium alloy surface repair and strengthening functional coating, as well as its preparation method and application. Background technique [0002] Titanium alloy has excellent properties such as low density, high specific strength and corrosion resistance, so it is more and more widely used in modern defense and military fields such as aviation, aerospace, and ships. However, its wear resistance is very poor, and the surface is prone to scratches, seizures and adhesive wear. For transmission shaft titanium alloy parts, surface wear often occurs, resulting in the problem of excessive size, which greatly affects the use of titanium alloy as a wear-resistant material. The use and life of the grinding transmission parts. Therefore, surface treatment of titanium ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/16C23C14/32C23C14/35C23C14/06C23C14/02
Inventor 李海庆李剑微郭朝乾程驰
Owner GUANGDONG UNIV OF TECH
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