Preparation method of nano silicon carbide particle reinforced aluminum alloy-based composite material

A nano-silicon carbide and aluminum alloy-based technology, applied in metal rolling and other directions, can solve the problems of many process links and high cost, and achieve the effects of uniform dispersion, reduction of process links and costs, and excellent toughness and toughness.

Active Publication Date: 2021-08-31
WUHAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Obviously, the traditional preparation process requir

Method used

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  • Preparation method of nano silicon carbide particle reinforced aluminum alloy-based composite material
  • Preparation method of nano silicon carbide particle reinforced aluminum alloy-based composite material
  • Preparation method of nano silicon carbide particle reinforced aluminum alloy-based composite material

Examples

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Example Embodiment

[0037] Example 1 A manufacturing method of silicon carbide particles nano-aluminum alloy matrix reinforced composites, comprising the steps of:

[0038] Composite material prepared in the present embodiment to alloy Al-4.5wt% Mg as the base, the mass fraction is 10% SiC reinforcement. Wherein the particle size of SiC particles is 50nm.

[0039] (1) cut out 125 × 50 × 0.25mm aluminum sheet size, take 8 polished and clean as the original matrix, and the sample surface;

[0040] (2) The quality of the aluminum sheet, weighed and accounted for 4.5% of the mass percentage of magnesium, and 10% of the nano SiC particles. The two particles are placed in a beaker, to which was poured an appropriate amount of ethanol, and ultrasonic vibration, until the two kinds of particles uniformly mixed to give a suspension.

[0041] (3) The aluminum sheet surface in step (2) uniformly coating the entire suspension obtained in step (2), until complete evaporation of ethanol, the suspension of 8-coated...

Example Embodiment

[0046] Example 2

[0047] Composite material prepared in the present embodiment to alloy Al-10wt% Mg as the base, 6wt% SiC as reinforcement. Wherein the particle size of SiC particles is 50nm.

[0048] (1) cut out 125 × 50 × 0.25mm aluminum sheet size, take 8 polished and clean as the original matrix, and the sample surface.

[0049] (2) The quality of the aluminum sheet, weighed and accounted for 10% mass percentage of magnesium powder and 6% of nano SiC particles. The two particles are placed in a beaker (or similar container), into the amount of absolute ethanol and ultrasonic vibration. Uniformly mixed to give two particle suspension by ultrasonic oscillation. The suspension was uniformly coated aluminum sheet surface in step (1), until complete evaporation of ethanol, the number of sheets of an aluminum sheet coated with the suspension are stacked together to obtain a laminated billet.

[0050] (3) Step (2) wrapped stack of blanks in the steel sheets was subjected to a rollin...

Example Embodiment

[0054] Example 3

[0055] Composite material prepared in the present embodiment to Al-5.6% Zn-2.5% Mg-1.5Cu (wt%) alloy as the matrix, 12wt% SiC as reinforcement. Wherein the particle size of SiC particles is 50nm.

[0056] (1) cut out 125 × 50 × 0.25mm aluminum sheet size, take 8 polished and clean as the original matrix, and the sample surface.

[0057] (2) The quality of the aluminum sheet, weighed mass of its percentage of 5.6%, 2.5%, 1.5% zinc, magnesium, copper, and 12% of the nano SiC particles. These powders were placed in a beaker (or similar container), into the amount of absolute ethanol and ultrasonic vibration. Mixed particles obtained by ultrasonic vibration of the suspension, the suspension was uniformly coated aluminum sheet surface in step (1), to be completely volatilized ethanol, the copper surface is placed directly on an aluminum sheet, the number of sheets suspension coated with copper aluminum sheet stacked together to obtain a laminated billet.

[0058] (3)...

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Abstract

The invention relates to the field of preparation of metal-based composite materials, and particularly discloses a preparation method of a nano silicon carbide particle reinforced aluminum alloy-based composite material. The method comprises the following steps of clamping nano silicon carbide particles, alloy element powder or sheets among a plurality of aluminum plates, performing rolling at room temperature, performing folding in the rolling direction after rolling, and repeating the rolling-folding process for multiple passes; and heating and rolling a rolled sample repeatedly to obtain the finally completely-densified block aluminum alloy-based composite material. In the multi-pass rolling process, under the action of severe plastic deformation, alloy elements are gradually dissolved and enter an aluminum matrix, the solid alloying effect is achieved, and an aluminum alloy matrix is formed; and meanwhile, the silicon carbide particles are also uniformly dispersed in the aluminum alloy matrix. Equipment required by the method is an industrial rolling mill and a muffle furnace, the process is simple, all elements in the obtained composite material are subjected to solid solution, the nano particles are uniformly dispersed, crystal grains are fine, and the strength and toughness are excellent.

Description

technical field [0001] The invention relates to a method for preparing a nano-silicon carbide particle-reinforced aluminum alloy-based composite material, which belongs to the field of composite material preparation. Background technique [0002] Aluminum matrix composites refer to a class of materials formed by compounding aluminum or aluminum alloy as a matrix and fibers, whiskers or particles as reinforcements. It can combine the advantages of good toughness of aluminum matrix and high strength of ceramic particles, and is a structural material with excellent comprehensive performance. In addition, aluminum matrix composites also have the advantages of high specific strength, small thermal expansion coefficient, good electrical and thermal conductivity, etc., and are widely used in aerospace, transportation and other fields. According to the type of matrix, aluminum matrix composites can be divided into pure aluminum matrix composites and aluminum alloy matrix composites...

Claims

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Application Information

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IPC IPC(8): C22C1/10C22C21/00C22C32/00C22F1/04B21B1/38
CPCC22C1/10C22C21/00C22F1/047C22C32/0063C22F1/04C22C21/06B21B1/38B21B2001/383
Inventor 梅青松梅鑫明陈峰陈子豪徐涛王一晨邵皓华李成林张国栋万亮
Owner WUHAN UNIV
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