Aluminium-plated particle reinforced aluminum-matrix composite material and preparation method thereof

An aluminum-based composite material, particle-reinforced aluminum technology, applied in chemical instruments and methods, layered products, metal layered products, etc. The effect of mechanical properties

Inactive Publication Date: 2011-07-06
GENERAL RESEARCH INSTITUTE FOR NONFERROUS METALS BEIJNG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the metallurgical inhomogeneity of particle reinforced aluminum matrix composites, these methods also have certain limitations.

Method used

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  • Aluminium-plated particle reinforced aluminum-matrix composite material and preparation method thereof
  • Aluminium-plated particle reinforced aluminum-matrix composite material and preparation method thereof
  • Aluminium-plated particle reinforced aluminum-matrix composite material and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0034] The aluminum-coated particle reinforced aluminum-based composite material prepared in this embodiment, such as figure 1 As shown, the surface layer is the surface pure aluminum layer 1, the core particle reinforced aluminum matrix composite material layer 2 is 37% vol. Aluminum 6061).

[0035] Its preparation method is as follows: figure 2 As shown, (1) put the uniformly mixed 37% vol.AlN / 6061 core particle reinforced aluminum matrix composite powder 2' into a barrel-shaped pure aluminum mold cover 1' with a wall thickness of 1 mm; (2) cover it After the pure aluminum cover plate is put into the steel mold as a whole; image 3 As shown, a heating element 13 is provided in the vacuum hot-press chamber 11, (3) the pure aluminum mold cover and the steel mold assembly 12 to be pressed are loaded into the vacuum hot-press chamber 11 to carry out Pressing, the process conditions are: pressure 30MPa, temperature 600°C, time 6h, after vacuum hot pressing, the steel mold is ...

Embodiment 2

[0037] The aluminum-coated particle reinforced aluminum-based composite material prepared in this embodiment, such as figure 1 As shown, the surface layer is the surface pure aluminum layer 1, and the core particle reinforced aluminum matrix composite material layer 2 is 25% vol.SiC p / 2009 (reinforcement particle SiC p The volume percentage is 25%, and the balance is the aluminum alloy matrix duralumin 2009).

[0038] Its preparation method is as follows: figure 2 As shown, (1) will mix uniformly 25% vol.SiC p / 2009 Core aluminum particle reinforced aluminum matrix composite material powder 2' is loaded into a barrel-shaped pure aluminum mold cover 1' with a wall thickness of 5mm; (2) After covering the pure aluminum cover plate, vacuumize it and degas it; Figure 4 As shown, a heating element 13' is arranged in the hot isostatic pressing chamber 11', (3) the pure aluminum die sleeve assembly 12' to be pressed with the particle-reinforced aluminum-based composite material ...

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Abstract

The invention belongs to the technical filed of particle reinforced aluminum-matrix composite materials and in particular relates to an aluminium-plated particle reinforced aluminum-matrix composite material and a preparation method thereof. The aluminium-plated particle reinforced aluminum-matrix composite material is characterized in that the surface layer of the aluminium-plated particle reinforced aluminum-matrix composite material is made of pure aluminium, and the core interlayer of the aluminium-plated particle reinforced aluminum-matrix composite material is composed of a particle reinforced aluminum-matrix composite material. The aluminium plating of the aluminium-plated particle reinforced aluminum-matrix composite material is realized in the process of carrying out vacuum hotpressing or hot isostatic pressing by using a powder metallurgic method. The method disclosed by the invention comprises the following steps: carrying out powder densification on particle reinforced aluminum-matrix composite materials through vacuum hotpressing or hot isostatic pressing, and simultaneously, carrying out metallurgical bonding on an aluminum die-sleeve and a composite material blank at high temperature and high pressure so as to obtained the aluminium-plated particle reinforced aluminum-matrix composite material. The aluminium-plated particle reinforced aluminum-matrix composite material can be subjected to one or more subsequent processing such as extrusion, forging, rolling and heat treatment so as to obtain various aluminium-plated particle reinforced aluminum-matrix composite materials with different specifications and properties. The aluminium-plated particle reinforced aluminum-matrix composite material can be applied to occasions with anticorrosion or electromagnetic shielding demands.

Description

technical field [0001] The invention belongs to the technical field of particle-reinforced aluminum-based composite materials; in particular, it relates to an aluminum-coated particle-reinforced aluminum-based composite material and a preparation method thereof. Background technique [0002] Particle-reinforced aluminum matrix composites have excellent comprehensive properties such as high specific strength, high specific stiffness, wear resistance, fatigue resistance, and small thermal expansion coefficient. They can be widely used in aerospace, automotive, electronics, sports equipment and other fields. In many applications, there are also special requirements for the surface properties of materials, such as anti-corrosion performance, electromagnetic shielding performance, etc. The surface of the particle-reinforced aluminum matrix composite material itself does not always meet the specific requirements. [0003] Powder metallurgy is a relatively mature method for prepari...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B15/01B22F3/02
Inventor 马自力樊建中左涛魏少华刘彦强
Owner GENERAL RESEARCH INSTITUTE FOR NONFERROUS METALS BEIJNG
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