A kind of preparation method of high-performance ni-nb amorphous coating

An amorphous coating, high-performance technology, applied in the coating, metal material coating process, etc., to achieve the effect of strong controllability, improved corrosion resistance, and simple operation process

Active Publication Date: 2021-04-20
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Then use the high-current pulsed electron beam remelting effect to adjust the structure of the material surface coating

Method used

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  • A kind of preparation method of high-performance ni-nb amorphous coating
  • A kind of preparation method of high-performance ni-nb amorphous coating
  • A kind of preparation method of high-performance ni-nb amorphous coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Preparation of Ni-Nb Amorphous Coating

[0031](1) After the substrate GH3039 has been cut, pre-grinded, cleaned and polished, a Ni-Nb composite coating (Ni at.62%, Nb at.38%, purity 99.9Wt% ), the thickness is 20μm; according to the technical requirements of mechanical coating equipment, the mass ratio of ball to material is 10:1, the speed is 250r / min, the time is 3h, and the coating thickness is 20μm.

[0032] (2) The sample is irradiated with a high-current pulsed electron beam. The sample to be irradiated is fixed on the stage, and the coating surface is irradiated vertically by the "HOPE-II" high-current pulsed electron beam device, and then the Ni-Nb amorphous coating is obtained on the surface of the nickel-based alloy sample. Among them, the technical parameters of high-current pulsed electron beam irradiation are: the energy of the electron beam is 24KeV, and the energy density is 2.7J / cm 2 , the target source distance is 15cm, the pulse width is 1.5μs, and ...

Embodiment 2

[0039] Preparation of Ni-Nb Amorphous Coating

[0040] (1) After the substrate GH3039 has been cut, pre-grinded, cleaned and polished, a Ni-Nb coating (Ni at.62%, Nb at.38%, purity 99.9Wt%) is deposited on the surface by mechanical coating technology , the thickness is 20um; according to the technical requirements of the mechanical coating equipment, the mass ratio of ball to material is 10:1, the speed is 250r / min, the time is 3h, and the coating thickness is 20μm.

[0041] (2) The sample is irradiated with a high-current pulsed electron beam. The sample to be irradiated is fixed on the stage, and the coating surface is irradiated vertically by the "HOPE-II" high-current pulsed electron beam device, and then the Ni-Nb amorphous coating is obtained on the surface of the nickel-based alloy sample. Among them, the technical parameters of high-current pulsed electron beam irradiation are: the energy of the electron beam is 24KeV, and the energy density is 2.7J / cm 2 , the target...

Embodiment 3

[0048] Preparation of NiNb amorphous coating

[0049] (1) After the substrate GH3039 has been cut, pre-grinded, cleaned and polished, a nickel-niobium coating (Ni at.62%, Nb at.38%, purity 99.9Wt%) is deposited on the surface by mechanical coating technology, The thickness is 20μm; according to the technical requirements of the mechanical coating equipment, the mass ratio of the ball to material is 10:1, the rotation speed is 250r / min, the time is 3h, and the coating thickness is 20μm.

[0050] (2) The sample is irradiated with a high-current pulsed electron beam. The sample to be irradiated is fixed on the stage, and the coating surface is irradiated vertically by the "HOPE-II" high-current pulsed electron beam device, and then the Ni-Nb amorphous coating is obtained on the surface of the nickel-based alloy sample. Among them, the technical parameters of high-current pulsed electron beam irradiation are: the energy of the electron beam is 24KeV, and the energy density is 2.7...

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Abstract

The invention relates to the technical field of material surface engineering, and is a method for preparing a high-performance Ni-Nb amorphous coating; specifically, it is prepared on the surface of a nickel-based alloy by combining mechanical coating with a high-current pulsed electron beam. The invention relates to a Ni-Nb amorphous coating with high strength and excellent wear resistance and corrosion resistance, which belongs to the technical field of metal material surface engineering. It relies on the violent impact and collision between the ball milling medium and the alloy powder to cause repeated cold welding and fracture between the powder particles, promote the diffusion of atoms in the powder particles, and obtain alloyed powder. At the same time, the alloy powder is coated on the surface of the material, and an alloy powder coating with a thickness of 20 μm is formed under the action of diffusion and deposition. Then use the high-current pulsed electron beam remelting effect to adjust the structure of the surface coating of the material.

Description

technical field [0001] The invention relates to the technical field of material surface engineering, and is a method for preparing a high-performance Ni-Nb amorphous coating; specifically, it is prepared on the surface of a nickel-based alloy by combining mechanical coating with a high-current pulsed electron beam. The invention relates to a Ni-Nb amorphous coating with high strength and excellent wear resistance and corrosion resistance, which belongs to the technical field of metal material surface engineering. Background technique [0002] Since the first discovery of amorphous alloys in the Au-Si system by Duwez et al. using a rapid solidification method in the early 1960s, amorphous alloys with excellent glass-forming ability (ie, metallic glasses) have attracted extensive attention. Because the amorphous microstructure is uniform and there are no defects such as dislocations, phase boundaries, grains, grain boundaries, impurities, etc., the amorphous alloy has excellen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C24/00C23C24/10
CPCC23C24/00C23C24/106
Inventor 吕鹏刘子剑孙平平李邵伟关庆丰陈亚楠
Owner JIANGSU UNIV
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