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Aluminum matrix composite and preparation method thereof

An aluminum-based composite material and composite material technology, applied in the field of new material preparation, can solve the problems of poor toughness and low plasticity, and achieve the effects of increased elongation, uniform distribution, and fine grains

Inactive Publication Date: 2016-12-14
SHENYANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The object of the present invention is to provide an aluminum matrix composite material and its preparation method. The matrix phase of the composite material and the reinforcement phase space are three-dimensionally connected and evenly distributed, and the two phases strengthen each other, which solves the plasticity problem existing in the existing discontinuously reinforced aluminum matrix composite material. The problem of low and poor toughness

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  • Aluminum matrix composite and preparation method thereof

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Effect test

Embodiment 1

[0018] The invention provides an aluminum-based / three-dimensional connected porous titanium composite material. The composition of the composite material selected in the specific embodiment is: a high-performance aluminum alloy Al-Zn-Mg-Cu currently used for structural materials and a three-dimensional connected porous titanium skeleton . The Al-Zn-Mg-Cu alloy composition (mass percentage) is: 90.5%Al, 6%Zn, 1.5%Mg, 2%Cu, while the porosity of the porous titanium skeleton is 30%, the pore size is 100μm, the purity of titanium 99.9%.

[0019] The present invention provides a method for preparing the above-mentioned aluminum-based / three-dimensional interconnected porous titanium composite material, the specific steps are as follows:

[0020] (1) Ingredients: Al, Zn, Mg and Cu with a purity of not less than 99.9% (mass percentage) were used as the elemental raw materials used in the test. The quality of the above-mentioned elemental raw materials is weighed by a precision elect...

Embodiment 2

[0025] The invention provides an aluminum-based / three-dimensional connected porous titanium composite material. The composition of the composite material selected in the specific embodiment is: a high-performance aluminum alloy Al-Zn-Mg-Cu currently used for structural materials and a three-dimensional connected porous titanium skeleton . The Al-Zn-Mg-Cu alloy composition (mass percentage) is: 90.5%Al, 6%Zn, 1.5%Mg, 2%Cu, and the porosity of the porous titanium skeleton is 80%, the pore size is 50μm, the purity of titanium 99.9%.

[0026] The present invention provides a method for preparing the above-mentioned aluminum-based / three-dimensional interconnected porous titanium composite material, the specific steps are as follows:

[0027] (1) Ingredients: Al, Zn, Mg and Cu with a purity of not less than 99.9% (mass percentage) were used as the elemental raw materials used in the test. The quality of the above-mentioned elemental raw materials is weighed by a precision electron...

Embodiment 3

[0031] The invention provides an aluminum-based / three-dimensional connected porous titanium composite material. The composition of the composite material selected in the specific embodiment is: a high-performance aluminum alloy Al-Zn-Mg-Cu currently used for structural materials and a three-dimensional connected porous titanium skeleton . The Al-Zn-Mg-Cu alloy composition (mass percentage) is: 90.5%Al, 6%Zn, 1.5%Mg, 2%Cu, and the porosity of the porous titanium skeleton is 80%, the pore size is 50μm, the purity of titanium 99.9%.

[0032] The present invention provides a method for preparing the above-mentioned aluminum-based / three-dimensional interconnected porous titanium composite material, the specific steps are as follows:

[0033] (1) Ingredients: Al, Zn, Mg and Cu with a purity of not less than 99.9% (mass percentage) were used as the elemental raw materials used in the test. The quality of the above-mentioned elemental raw materials is weighed by a precision electron...

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Abstract

The invention relates to a composite and a preparation method of the composite, in particular to an aluminum matrix composite and a preparation method of the aluminum matrix composite. The composite comprises an aluminum alloy Al-Zn-Mg-Cu and a three-dimensional connected porous titanium framework. The preparation method comprises the specific steps that burdening is performed, a mother alloy is smelted, and the aluminum matrix / three-dimensional connected porous titanium composite is prepared: elementary substance raw materials are subjected to ultrasonic cleaning through petroleum ether and absolute alcohol, and finally the elementary substance raw materials are mixed together, put into a graphite crucible and made into a mother alloy ingot; and after sufficient interstitial flow of a alloy melt is performed and porous titanium framework holes are fully filled with the alloy melt, a steel pipe is quenched into water, and the aluminum matrix / three-dimensional connected porous titanium composite is obtained. The grains of the matrix structure of the aluminum matrix composite are fine and the aluminum matrix composite has the excellent mechanical property under the experimental conditions of large size samples.

Description

technical field [0001] The invention relates to a composite material and a preparation method, in particular to an aluminum-based / three-dimensional interconnected porous titanium composite material and a preparation method, and belongs to the technical field of new material preparation. Background technique [0002] Aluminum-based composite materials have the characteristics of high specific modulus, high temperature resistance, oxidation resistance, light weight, and corrosion resistance. They have become a direction for the development of high-performance structural materials in aviation, aerospace and other fields. They are also the focus of new material research at home and abroad in recent years. One of the hot spots. [0003] Aluminum matrix composites are based on aluminum or aluminum alloys, including discontinuously reinforced aluminum matrix composites and continuous reinforced aluminum matrix composites. The reinforcing phase of discontinuously reinforced aluminu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/10C22C1/08
CPCC22C1/08C22C21/10C22C1/081
Inventor 马国峰张鸿龄
Owner SHENYANG UNIV
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