Light high-strength boron carbide particle reinforced aluminum-based composite material and preparation method thereof

A particle-reinforced aluminum and composite material technology, which is applied in the field of casting metal matrix composite materials, can solve the problems of cumbersome powder metallurgy operation, difficulty in large-scale mold size, and high cost
CN112680622AInactive Publication Date: 2021-04-20深圳优越科技新材料有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
深圳优越科技新材料有限公司
Publication Date
2021-04-20
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a light high-strength boron carbide particle reinforced aluminum-based composite material and a preparation method thereof. The light high-strength boron carbide particle reinforced aluminum-based composite material is prepared from the following components in percentage by mass: 8-30% of boron carbide (B4C) particles and 70-92% of an aluminum alloy matrix. The preparation method comprises the steps that copper plating treatment is carried out on the surfaces of the boron carbide particles; the solid aluminum alloy matrix is molten; the treated boron carbide particles are added into the molten aluminum alloy matrix, and are mechanically stirred to uniformly disperse the particles; and the composite material is obtained through casting, hot extrusion and heat treatment. The surfaces of the boron carbide particles are subjected to copper plating treatment, interface reaction is regulated and controlled, the boron carbide particles are prevented from being directly in contact with molten aluminum alloy to be corroded, the composite material is obtained through a stirring casting method, the obtained material is excellent in performance, the preparation method is simple, the cost is low, and industrial production can be achieved.
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Description

technical field

[0001] The invention relates to the field of casting metal-based composite materials, in particular to a lightweight and high-strength boron carbide particle-reinforced aluminum-based composite material and a preparation method thereof. Background technique

[0002] Ceramic particle reinforced aluminum matrix composites have the advantages of high specific strength, high specific stiffness, high elastic modulus, excellent wear resistance, good dimensional stability and fatigue performance, low density and controllable expansion coefficient, etc., so in aerospace, It has wide application and research value in fields such as weaponry and automobile industry.

[0003] Boron carbide particles are a ceramic material with many excellent properties, with high hardness and low density (2.529g / cm 3 ), excellent high temperature stability and oxidation resistance, in addition, boron carbide is resistant to strong acids and alkalis, has good wear resistance, is not eas...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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