Copper-zirconium-based amorphous powder for multiple damage repair, coating and preparation method

A damage repair and amorphous coating technology, which is applied in the field of preparation of copper-zirconium-based amorphous powder and copper-zirconium-based amorphous coating, can solve the problem of poor plastic deformation ability and amorphous formation of copper-zirconium-based amorphous alloys at room temperature Ability to limit the development and application, not suitable for the preparation of easy-to-crystallize copper-zirconium-based amorphous coatings, etc., to achieve the effect of ensuring full utilization, good glass forming ability, and high sphericity

Pending Publication Date: 2022-05-31
ARMOR ACADEMY OF CHINESE PEOPLES LIBERATION ARMY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Compared with traditional copper alloy materials, copper-zirconium-based amorphous alloys have properties far superior to traditional copper alloys, such as high strength, excellent wear resistance, corrosion resistance and impact resistance. It is a new type of metal material that can be repaired by impacting multiple losses at the same time; however, its limited amorphous formation ability limits its development and application, and the copper-zirconium-based amorphous alloy has poor plastic deformation ability at room temperature, which limits its application as a structural material. application
[0005] At present, the methods for preparing copper alloy coatings mainly include supersonic arc spraying, supersonic plasma spraying, supersonic flame spraying and other high-temperature spraying technologies. When the spraying temperature is too high, it is not suitable for preparing copper-zirconium-based amorphous coatings that are easy to crystallize and oxidize. Floor

Method used

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  • Copper-zirconium-based amorphous powder for multiple damage repair, coating and preparation method
  • Copper-zirconium-based amorphous powder for multiple damage repair, coating and preparation method
  • Copper-zirconium-based amorphous powder for multiple damage repair, coating and preparation method

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Embodiment 1）

[0030] The chemical composition of the copper-zirconium-based amorphous powder used for multiple damage repair of copper alloy parts of the present embodiment is:

[0031] (Cu 46-x Zr 47 Al 7 Ag x ) 100-y co y (x=0~4; y=0~1.5; x, y are at.%), x=3, y=0.5 in the present embodiment.

[0032] The specific chemical composition is: Cu 42.785at.%, Zr: 46.765at.%, Al: 6.965at.%, Ag: 2.985at.%, Co: 0.5at.%.

[0033] The scanning electron microscope photo of the above-mentioned copper-zirconium-based amorphous powder is shown in figure 1 , XRD pattern see figure 2 ; Powder particle size 15μm ~ 63μm, good fluidity, completely amorphous powder.

[0034] The preparation method of the copper-zirconium-based amorphous coating for multiple damage repair in this embodiment comprises the following steps:

[0035] ①Put the gas-atomized copper-zirconium-based amorphous powder with a particle size of 15 µm to 63 µm in an oven at 80°C for 3 hours.

[0036] ② Degreasing, derusting and san...

Embodiment 2）

[0046] The chemical composition of the copper-zirconium-based amorphous powder used for multiple damage repair of copper alloy parts of the present embodiment is:

[0047] (Cu 46-x Zr 47 al 7 Ag x ) 100-y co y (x=0~4; y=0~1.5; x, y are at.%), x=1, y=1 in this embodiment.

[0048] The preparation method of the coating is the same as in Example 1.

Embodiment 3）

[0050] The chemical composition of the copper-zirconium-based amorphous powder used for multiple damage repair of copper alloy parts of the present embodiment is:

[0051] (Cu 46-x Zr 47 al 7 Ag x ) 100-y co y (x=0~4; y=0~1.5; x, y are at.%), x=2, y=0.5 in the present embodiment.

[0052] The preparation method of the coating is the same as in Example 1.

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Abstract

The invention discloses copper-zirconium-based amorphous powder for multiple damage repair, a coating and a preparation method, the chemical composition of the zirconium-based amorphous powder is (Cu46-xZr47Al7Agx) 100-yCoy, and x is equal to 0-4; y is equal to 0 to 1.5; x and y are at.%. The high-amorphous copper-zirconium-based amorphous coating is prepared by spraying gas-atomized copper-zirconium-based amorphous powder on the surface of a copper alloy by adopting a low-temperature supersonic spraying technology. The copper-zirconium-based amorphous powder for multiple damage repair of the copper alloy part is high in sphericity degree, good in fluidity and good in plasticity; and the powder has good thermal stability and better glass forming ability, and can be used for preparing a coating with high amorphous content. The porosity of the prepared coating ranges from 0.25 vt% to 1.5 vt%, the bonding strength is larger than or equal to 40 MPa, the amorphous phase content is larger than or equal to 85%, the microhardness is larger than or equal to 550 MPa, and the coating has the multiple functions of excellent wear resistance, excellent corrosion resistance, excellent impact resistance and the like.

Description

technical field [0001] The invention relates to the technical field of damage repair, in particular to a preparation method of a copper-zirconium-based amorphous powder, a copper-zirconium-based amorphous coating and a copper-zirconium-based amorphous coating for repairing multiple damages of copper alloy parts. Background technique [0002] Due to the low hardness and poor corrosion resistance of copper alloys, problems such as corrosion, wear, scratches, and seawater impact damage occur in high-temperature, high-humidity, and high-salt spray environments, causing great harm and huge economic losses. In addition, industrial discharges have deteriorated water quality, made the marine environment more complex, and aggravated multiple damages such as corrosion, wear, and damage to marine facilities such as bridges, docks, and large ships. [0003] In view of the multiple damages of copper parts, spraying technology is used to prepare a corrosion-resistant, wear-resistant and i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C45/10B22F1/08C23C24/04
CPCC22C45/10C23C24/04Y02T50/60
Inventor 王晓明文舒王文宇赵阳韩国峰任智强周超极毛卫国杨柏俊高雪松肖猛朱胜
Owner ARMOR ACADEMY OF CHINESE PEOPLES LIBERATION ARMY
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