An Optical-Magnetic Coupling Method for Improving Plastic Deformation Ability of Aluminum Matrix Composites

An aluminum matrix composite material and plastic deformation technology, which is applied in the field of optical magnetic coupling of aluminum matrix composite materials to improve the plastic deformation ability of aluminum matrix composite materials, can solve the problems of material size deformation, tissue deformation and large residual stress

Active Publication Date: 2016-03-02
ZHENJIANG JINTIANCHEN NEW MATERIAL
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Problems solved by technology

[0003] At present, the research directly related to the high plastic deformation ability of materials is superplastic materials. The method to make metals superplastic is to make them undergo specific structural denaturation and obtain stable equiaxed ultrafine grains with a grain diameter of less than 10 μm. ;Severe deformation method is often used to achieve matrix crystal grain nanometerization and superplasticity through large strain (patent: CN200810230081.9 a preparation method of fine-grained superplastic heat-resistant magnesium alloy; patent CN200710011887.4 a short-process fine-grained superplastic material Preparation method; patent CN200910183585.4 based on multi-pair rolling and equal-channel angular extrusion (large-strain processing method for metal materials), control and optimize the temperature, strain rate, heating method, etc. during superplastic deformation to make it easier for metals to obtain superplasticity ; However, the analysis of several patents shows that the method of achieving grain nanometerization and superplasticity through severe deformation is only suitable for alloys with good ductility, such as deformed aluminum, magnesium and titanium alloys, etc. In other words: through grain nano The way to achieve plasticity improvement or superplasticity is only suitable for some high-plasticity metal materials; and the size deformation, tissue deformation and residual stress of the material are very large during the severe deformation process, which is not suitable for components with special requirements; therefore, for this It is necessary to explore a processing route of "high performance, high efficiency, low cost and low pollution" for class components

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  • An Optical-Magnetic Coupling Method for Improving Plastic Deformation Ability of Aluminum Matrix Composites
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  • An Optical-Magnetic Coupling Method for Improving Plastic Deformation Ability of Aluminum Matrix Composites

Examples

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Effect test

Embodiment 1

[0032] Embodiment one: (Al 3 Zr (s) +Al 2 O 3(s) ) p Preparation of / 7055 Aluminum Matrix Composites and Characteristics of Plastic Deformation under Different Conditions

[0033] The characteristics of this aluminum matrix composite material are: Al 3 Zr、Al 2 o 3 Particle-reinforced 7055 aluminum-based composite material is a micro-nano particle-reinforced deformable aluminum-based composite material. The material preparation method is: melting 7055 aluminum alloy (Zn: 8.4%, Cu: 2.2%, Mg: 2.4%, Zr: 0.2%, average is the mass percentage, and the rest is aluminum), using zirconium carbonate powder as raw material, through the reaction with aluminum liquid to generate Al 2 o 3 , Al 3 Zr particles, the total particle fraction is designed to be 4vol.%, according to the metering equation of formula (1), and according to the experimental setting of zirconium carbonate reaction yield of 75%, then 4vol.% (Al 2 o 3 +Al 3 Zr) The amount of zirconium carbonat...

Embodiment 2

[0044] Example 2: High plasticity TiB 2 Particle Reinforced Cast Aluminum Matrix Composites

[0045] The characteristics of this aluminum-based composite material are: micro-nano particle reinforced cast aluminum-based composite material, and the material preparation method is: smelting A356 aluminum alloy (Si: 7%, Mg: 0.3%, both are mass percentages, and the rest is aluminum ), to potassium fluorotitanate K 2 TiF 6 and potassium fluoroborate KBF 4 As a reaction salt, the particle volume fraction is designed to be 3vol.%. According to the reaction measurement equation of formula (2), the potassium fluorotitanate K is set according to the experiment. 2 TiF 6 and potassium fluoroborate KBF 4 The yield rate is 90%, then generate 3vol.%TiB 2 Reinforced particles need to add K 2 TiF 6 The amount is 18.6% (mass percentage) of the aluminum in the base alloy, and the KBF that needs to be added 4 The amount is 19.5% (mass percentage) of the amount of aluminum in the base...

Embodiment 3

[0055] Example 3: High plasticity SiC fiber reinforced 2024 aluminum matrix composite material

[0056] The characteristics of this aluminum matrix composite material are: fiber reinforced deformed aluminum matrix composite material. , and the rest is Al) into the fixed cavity of the built-in SiC fiber prefabricated part by liquid force, the pressure used is 20MPa, the pressure is applied until the end of solidification, and the SiC fiber reinforced 2024 aluminum matrix composite is prepared, and the fiber volume fraction is controlled at 5vol. %, SiC density 3.17×10 3 kg / m 3 , then the quality of SiC fiber added is 6.4% (mass percentage) of the aluminum content in the alloy. The sample is a cube with a size of 100mm×100mm×100mm. The sample is rolled three times to form a thin plate with a thickness of 10mm. , the thin plate was subjected to heat treatment at 490°C for 3h and aging at 190°C for 10h, and then the comparative experiments of "magnetic field plastic deformatio...

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Abstract

The invention relates to aluminum-based composite materials, in particular to an optical-magnetic coupling method for improving the plastic deformation ability of aluminum-based composite materials, and belongs to the technical field of new material preparation. This method is based on the "optomagnetic coupling plasticity" effect of light and magnetic field to improve the plastic deformation ability of materials, that is, under the coupling action of "magnetic field" and "light" supplemented with "stress field" to carry out plastic deformation processing of materials, through coordination The elongation of aluminum matrix composites is improved by controlling parameters such as the type of magnetic field, the intensity of magnetic induction, the phase relationship between the magnetic field and the stress field, the type of light, the intensity of light, and the coupling time.

Description

technical field [0001] The invention relates to aluminum-based composite materials, in particular to an optical-magnetic coupling method for improving the plastic deformation ability of aluminum-based composite materials, and belongs to the technical field of new material preparation. Background technique [0002] Metal plastic processing is carried out on the premise of high plasticity of materials and under the action of external force. From the perspective of metal plastic processing, high plastic deformation capacity will be one of the important advantages of materials; but as we all know, for metal materials, high strength and Low plasticity is often associated. In actual production, it is often necessary to perform plastic deformation processing on "high-strength, low-plasticity" materials in order to improve the size of the product or improve the overall performance of the material. Therefore, it is necessary to explore an effective way to improve the plasticity of suc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22F3/02C22F3/00C22F1/04
Inventor 李桂荣王宏明
Owner ZHENJIANG JINTIANCHEN NEW MATERIAL
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