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Molybdenum base alloy surface oxidation-resistant coating and preparation method thereof

An anti-oxidation coating, molybdenum-based alloy technology, applied in metal material coating process, coating, solid-state diffusion coating, etc. Smooth surface and obvious interface

Inactive Publication Date: 2017-12-29
张家港市思杰五金工具有限公司
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  • Abstract
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  • Claims
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Problems solved by technology

[0003] Although metal molybdenum and its alloys are good materials for preparing high-temperature furnace heating elements and structural parts, they will be violently oxidized when the temperature is above 600°C in the air. As the temperature increases, the strength of its products decreases and the loss increases. The service performance is affected, which seriously restricts the application of molybdenum and its alloys

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  • Molybdenum base alloy surface oxidation-resistant coating and preparation method thereof

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Embodiment Construction

[0018] The present invention is further illustrated by the following examples: According to the following examples, the present invention can be better understood. However, those skilled in the art can easily understand that the specific material ratios, process conditions and results described in the examples are only used to illustrate the present invention, and should not and will not limit the present invention described in the claims.

[0019] The anti-oxidation coating on the surface of the molybdenum-based alloy comprises a molybdenum boride layer and a molybdenum disilicide layer sequentially formed on the surface of the molybdenum-based alloy.

[0020] Method for preparing molybdenum disilicide / molybdenum boride composite coating on molybdenum-based alloy surface

[0021] 1. Molybdenum-based alloy surface treatment, including sandblasting, ultrasonic cleaning, and degreasing in sequence;

[0022] 2. Mix boron powder, sodium fluoride and alumina, place in a ball mill ...

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Abstract

The invention discloses a molybdenum base alloy surface oxidation-resistant coating and a preparation method thereof. The method includes the steps that a molybdenum boride layer is formed on the surface of molybdenum base alloy through an in-situ chemical vapor deposition method; and then the in-situ chemical vapor deposition method is further adopted to form a molybdenum disilicide layer on the molybdenum boride layer. According to the molybdenum base alloy surface oxidation-resistant coating and the preparation method thereof, the surface of the composite coating is flat, particle deposition is formed on the coating surface, deposited particles are tiny, and the particles can be stacked compactly. The molybdenum base alloy surface oxidation-resistant coating is of a double-layer structure, and the interface between the layers is obvious.

Description

technical field [0001] The application belongs to the technical field of surface coatings, in particular to a molybdenum-based alloy surface oxidation-resistant coating and a preparation method thereof. Background technique [0002] Metal molybdenum and its alloys have the advantages of high strength, high melting point, corrosion resistance and wear resistance, and are used to manufacture alloy components and parts of warships, tanks, guns, rockets, and satellites. In addition, metal molybdenum and its alloys are often used to manufacture heating elements and structural materials for high-temperature furnaces, such as electrodes for furnaces and high-temperature structural materials for glass melting in the glass and refractory fiber industries, and electrodes and smelting materials in the rare earth industry. Stirring stick etc. [0003] Although metal molybdenum and its alloys are good materials for preparing high-temperature furnace heating elements and structural parts...

Claims

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Application Information

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IPC IPC(8): C23C12/00
CPCC23C12/00
Inventor 范佳晨
Owner 张家港市思杰五金工具有限公司
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