Titanium alloy piece with anti-cavitation property on surface and preparation method thereof

A technology of titanium alloy parts and processing methods, which is applied in the direction of metal processing equipment, manufacturing tools, building components, etc., can solve the problems of long processing cycle, easy deformation of workpieces, weak bonding force, etc., and achieve short processing cycle and anti-cavitation corrosion Improved wear characteristics and reduced workpiece distortion

Inactive Publication Date: 2010-05-05
DALIAN MARITIME UNIVERSITY
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Problems solved by technology

Surface treatment can effectively improve the cavitation corrosion resistance of titanium alloys, but traditional surface modification treatments such as carburizing, boronizing and nitriding have disadvantag

Method used

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  • Titanium alloy piece with anti-cavitation property on surface and preparation method thereof
  • Titanium alloy piece with anti-cavitation property on surface and preparation method thereof
  • Titanium alloy piece with anti-cavitation property on surface and preparation method thereof

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with the accompanying drawings. Such as Figure 1-3 As shown, a titanium alloy part with cavitation resistance on the surface includes a substrate 1 and a surface texture layer 2, and the surface texture layer 2 has a textured structure processed by laser. The texture structure is grid or straight line or point texture.

[0020] A method for processing a titanium alloy piece whose surface has anti-cavitation properties comprises the following steps:

[0021] A. After the titanium alloy workpiece substrate 1 is pretreated, put it into acetone, ethanol and pure water in sequence, perform ultrasonic cleaning with a numerical control ultrasonic cleaning machine for 3 minutes, and dry it with a hair dryer;

[0022] B. Process the texture structure on the surface of the titanium alloy workpiece with a laser processor, and prepare the titanium alloy surface texture layer 2 with a pitch of 50 μm and 100 μm. ...

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Abstract

The invention discloses a titanium alloy piece with anti-cavitation property on surface and a preparation method thereof. The titanium alloy piece comprises a matrix and surface texture layers which are in texture structures processed by laser. The texture structure is grid or linear or spotted texture. The processing method comprises the following steps: preprocessing the matrix of the titanium alloy piece, and utilizing laser processor to carry out surface texture structure process on the surface of the titanium alloy piece so as to prepare surface texture layers of titanium alloy with gaps of 50 mu m and 100 mu m. In the invention, as the surface of titanium alloy is processed into a grid or linear or spotted texture structure with different gaps by laser, the anti-cavitation property of the titanium alloy is significantly improved. The laser beam used by the invention has good coherence and directivity, thereby ensuring no shape change of the working piece, and not causing the problems of loose organization structure and weak binding force of workpiece and the like.

Description

technical field [0001] The design of the invention relates to a surface processing technology of metal materials, in particular to a titanium alloy part with cavitation resistance on the surface and a processing method thereof. Background technique [0002] Titanium alloys are mainly used in the fields of aviation, aerospace, energy, shipbuilding and marine engineering, and medicine. Cavitation damage often occurs in the above applications, so it is necessary to improve the cavitation resistance of titanium alloys. Surface treatment can effectively improve the cavitation corrosion resistance of titanium alloys, but traditional surface modification treatments such as carburizing, boronizing and nitriding have disadvantages such as long treatment cycle and easy deformation of workpieces; coatings prepared by thermal spraying technology have The disadvantages are loose organization structure and weak binding force with the matrix. Contents of the invention [0003] In order ...

Claims

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Application Information

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IPC IPC(8): F16S5/00B23K26/36
Inventor 张会臣庞连云连峰高玉周
Owner DALIAN MARITIME UNIVERSITY
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