Surface nanocrystallization method for titanium alloy material

A treatment method and nanotechnology, which is applied in the field of titanium alloy material surface nanotechnology, can solve the problems of rough hitting surface, uneven shot peening impact area, and the impact frequency and density of the hitting surface can only be statistical values, etc., to achieve Effects of increased refractive index, increased density, and reduced size

Inactive Publication Date: 2010-01-13
GENERAL RESEARCH INSTITUTE FOR NONFERROUS METALS BEIJNG
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Problems solved by technology

This method can form a nano-layer on the surface, but the impact surface is rough, greatly affected by the diameter and speed of shot peening, the impact area of ​​shot peening is uneven, and the impact frequency and density of the impact surface can only be statistical values

Method used

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  • Surface nanocrystallization method for titanium alloy material
  • Surface nanocrystallization method for titanium alloy material
  • Surface nanocrystallization method for titanium alloy material

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Embodiment 1

[0037] like figure 1 Shown is a schematic diagram of the surface treatment of the ultrasonic surface strengthening treatment method of the present invention. In the figure, 1 is the workpiece to be processed, 2 is the ultrasonic surface strengthening treatment device, 3 is the lathe chuck, 4 supports the lathe spindle, and 5 is the fixing frame of the ultrasonic surface strengthening treatment device. The workpiece 1 to be processed is clamped on the lathe by the lathe chuck 3 and the supporting lathe spindle 4; the ultrasonic surface strengthening treatment device 2 is fixed on the fixing frame 5 of the ultrasonic surface strengthening treatment device.

[0038] The ultrasonic surface strengthening treatment device includes an ultrasonic generating device, an ultrasonic working gun connected to it by a wire; the ultrasonic working gun includes: a punch, a waveguide, a sleeve, a shell, an ultrasonic transducer, a pressure spring, and a Compressed air conduit; the punch and th...

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Abstract

The invention relates to a surface nanocrystallization method for a titanium alloy material, which comprises the following steps: vertically aligning an ultrasonic surface strengthening device to the surface of a workpiece to be treated; and switching on a power supply, and opening the ultrasonic surface strengthening device, so that the ultrasonic surface strengthening device walks in dense equidistance and at constant speed aiming at the workpiece to be treated by mechanical power and performs axial dense constant-speed treatment on the workpiece to be treated. The surface nanocrystallization method for the titanium alloy material adopts a plastic deformation method and large deformation speed to treat the surface of the workpiece, so that the fatigue strength, corrosive resistance, yield and breaking point, wear resistance and light refraction coefficient of the workpiece to be treated are improved, the surface of the material is compacted, the dimension is reduced, and the density is increased.

Description

technical field [0001] The invention relates to a nano-processing method for the surface of a titanium alloy material, in particular to an ultrasonic treatment method for surface treatment of a titanium alloy material. Background technique [0002] There are various methods for surface nanoscale of metal materials. Using severe plastic deformation methods can refine the micron grains of metallic materials to form ultrafine grains or nanocrystals, such methods include equal channel angular pressing, high pressure torsion (HPT), surface mechanical grinding (SMAT) and high energy ball milling (HEBM). )Wait. Among them, surface mechanical grinding and high-energy ball milling belong to the plastic deformation method with high strain rate (ε&>103 / s). [0003] Surface Mechanical Abrasion (SMAT) is a new surface nanotechnology developed in recent years. The research results show that in SMAT, due to the high-speed, multi-directional repeated impact of the projectile, the coar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22F3/00
Inventor 朱其芳孙泽明王福生黄桂成张永安
Owner GENERAL RESEARCH INSTITUTE FOR NONFERROUS METALS BEIJNG
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