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A device for obtaining a nanocrystalline-amorphous composite layer on the surface of pure titanium and its preparation method

A nanocrystalline and composite layer technology, which is applied in the field of devices and preparations for obtaining nanocrystalline-amorphous composite layers on the surface of pure titanium, can solve the problems of high experimental conditions and high energy consumption, and achieve controllable process parameters Strong performance, low energy consumption and easy operation

Active Publication Date: 2020-01-03
SHANDONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] Aiming at the problems in the prior art that there are many working steps, high requirements on experimental conditions, and high energy consumption, the present invention aims to provide a device for obtaining a nanocrystalline-amorphous composite strengthening layer on the surface of pure titanium and its preparation method , the preparation method of the present invention has the advantages of simple operation, short processing time, strong controllability of process parameters, less energy consumption, no pollution, etc., and has important practical value and broad application prospects

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  • A device for obtaining a nanocrystalline-amorphous composite layer on the surface of pure titanium and its preparation method
  • A device for obtaining a nanocrystalline-amorphous composite layer on the surface of pure titanium and its preparation method
  • A device for obtaining a nanocrystalline-amorphous composite layer on the surface of pure titanium and its preparation method

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Embodiment 1

[0055] 1. A device for obtaining a nanocrystalline-amorphous composite layer on the surface of pure titanium, such as figure 1 As shown, the device includes: an ultrasonic vibration application module and a shot peening working module.

[0056] The ultrasonic vibration application module mainly includes: an ultrasonic generator 1 , an ultrasonic transducer 2 , and an ultrasonic horn 3 .

[0057] The shot peening working module mainly includes: an ultrasonic tool head 4 , a shot peening 5 , a shot peening chamber 6 , a workpiece table 11 , and a workpiece fixing device (a) 8 .

[0058] The ultrasonic generator 1, the ultrasonic transducer 2, and the ultrasonic horn 3 are connected in sequence. The ultrasonic generator 1 transmits the current signal and transmits the signal to the ultrasonic transducer 2. The ultrasonic transducer 2 converts this signal into mechanical vibration with the same frequency. The ultrasonic horn 3 converts the mechanical vibration generated by the ul...

Embodiment 2

[0069] 1. A device for obtaining a nanocrystalline-amorphous composite layer on the surface of pure titanium, the same as in Embodiment 1.

[0070] 2. A method for obtaining a nanocrystalline-amorphous composite layer on the surface of pure titanium using the above-mentioned device of this embodiment; the method includes the following steps:

[0071] 1) Preparation: Put the ceramic pellets with a diameter of 2mm and a hardness of about 120-135HRC into the shot peening chamber. The number of ceramic pellets just covers the bottom of the shot peening chamber. The annealed cold-rolled pure titanium (TA2, Fe 0.03 C 0.08 N 0.03 H 0.014 O 0.015 Ti bal )) is fixed on the upper surface of the workpiece fixing device (a) 8, and the distance between the ultrasonic tool head 4 and the sample is adjusted to 7.5 mm; finally, the working frequency and power of the ultrasonic generator 1 are adjusted to make the amplitude of the ultrasonic tool head 4 The adjustment is 32um, and the wo...

Embodiment 3

[0076] 1. A device for obtaining a nanocrystalline-amorphous composite layer on the surface of pure titanium, the same as in Embodiment 1.

[0077] 2. A method for obtaining a nanocrystalline-amorphous composite layer on the surface of pure titanium using the above-mentioned device of this embodiment; the method includes the following steps:

[0078] 1) Preparation work: Put stainless steel shot with a diameter of 3mm and a hardness of about 45-55HRC into the shot peening chamber. The number of stainless steel shot just covers the bottom of the shot peening chamber. The annealed cold-rolled pure titanium (TA2, Fe 0.03 C 0.08 N 0.03 H 0.014 O 0.015 Ti bal )) is fixed on the upper surface of the workpiece fixing device (a) 8, and the distance between the ultrasonic tool head 4 and the sample is adjusted to 7.5 mm; finally, the working frequency and power of the ultrasonic generator 1 are adjusted to make the amplitude of the ultrasonic tool head 4 The adjustment is 40um, a...

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Abstract

The invention relates to a device for forming a nanocrystal-amorphous composite layer on a pure titanium surface and a preparation method of the nanocrystal-amorphous composite layer on the pure titanium surface. The device comprises an ultrasonic vibration module and a shot blasting operation module. The ultrasonic vibration module mainly comprises an ultrasonic generator, an ultrasonic transducer and an ultrasonic amplitude transformer. The ultrasonic vibration module is mainly used for generating vibration with ultrasonic frequency. The shot blasting module mainly comprises an ultrasonic tool head, a shot blaster, a shot blasting chamber, a workpiece platform and workpiece fixing devices. The shot blaster is driven by the ultrasonic tool head to continuously hit against a workpiece to complete shot blasting treatment. The preparation method has the advantages of being easy and convenient to operate, short in treatment time, high in technological parameter controllability, little inenergy consumption, free of pollution and the like, and has crucial practical value and broad application prospects.

Description

technical field [0001] The invention relates to the technical field of surface modification of metal materials, in particular to a device for obtaining a nanocrystalline-amorphous composite layer on the surface of pure titanium and a preparation method thereof. Background technique [0002] In recent years, nanocrystalline materials and amorphous materials have attracted the research interest of scholars from all over the world because of their more unique and excellent properties than traditional materials, and are considered to be promising new materials. However, in actual production, the preparation process of bulk nanocrystalline or amorphous materials is complicated and difficult to control, so the application of nanocrystalline or amorphous materials is mostly limited to materials with low latitude shapes such as thin ribbons, filaments and powders. As we all know, the failure of materials generally starts from its surface, so the overall performance of the material c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21D7/06C22F1/18
CPCC21D7/06C21D2201/03C22F1/183
Inventor 管延锦朱立华翟继强解振东林军
Owner SHANDONG UNIV
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