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A kind of graphene-reinforced magnesium-based composite material containing long-period structure and preparation method thereof

A long-period structure and composite material technology, applied in the field of metal composite materials, can solve problems such as lack of good solutions, and achieve the effects of avoiding bad interface compounds, improving strength and elastic modulus, and high elastic modulus

Active Publication Date: 2018-06-29
ZHENGZHOU UNIVERSITY OF LIGHT INDUSTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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  • A kind of graphene-reinforced magnesium-based composite material containing long-period structure and preparation method thereof
  • A kind of graphene-reinforced magnesium-based composite material containing long-period structure and preparation method thereof
  • A kind of graphene-reinforced magnesium-based composite material containing long-period structure and preparation method thereof

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preparation example Construction

[0035] The preparation method of the magnesium-based composite material containing long-period structure strengthened by graphene of the present invention, the steps are as follows:

[0036] (1) Preparation of Mg-Y-Zn-Ca-Zr-Sb magnesium alloy: 1) Ingredients: raw materials are pure Mg, pure Zn, pure Ca, pure Sb, Mg-40wt% Y master alloy, Mg-20wt.% Zr master alloy, according to the mass percent batching;

[0037] 2) Baking material: Preheat pure Mg, pure Zn, pure Ca, pure Sb, Mg-40wt.%Y master alloy and Mg-20wt.%Zr master alloy at 200~260℃ for more than 4 hours;

[0038] 3) Melting Mg, Zn and Ca: Use a crucible resistance furnace to melt the dried pure magnesium. After the pure magnesium is melted, add pure Zn at 680~720°C. After the pure Zn is melted, the melt temperature rises to 680~ Add pure Ca at 720°C;

[0039] 4) Add Y, Zr and Sb: After pure Ca is melted, add Mg-40wt.%Y master alloy when the melt temperature reaches 730~760℃, and after the Mg-40wt.%Y master alloy is mel...

Embodiment 1

[0048] The graphene-reinforced magnesium-based composite material containing long-period structure in this embodiment is made by adding graphene into the magnesium alloy matrix, and the magnesium alloy matrix is ​​composed of magnesium alloy powder and magnesium alloy sheet, wherein graphene and The mass ratio of the magnesium alloy powder is 1:3, and the mass ratio of graphene and magnesium alloy powder as a whole to the magnesium alloy plate is 1:6; the components and mass percentages of the magnesium alloy matrix are: 3wt.%Y, 1wt.%Zn, 0.2wt.%Ca, 0.2wt.%Zr, 0.2wt.%Sb, and the balance is Mg. The above components are prepared by smelting process to obtain Mg-3Y-1Zn-0.2Ca containing LPSO structure -0.2Zr-0.2Sb alloy, for Mg-3Y-1Zn-0.2Ca-0.2Zr-0.2Sb alloy containing LPSO structure, use atomization method to obtain magnesium alloy powder, for Mg-3Y-1Zn-0.2 containing LPSO structure The Ca-0.2Zr-0.2Sb alloy is homogenized to obtain a magnesium alloy plate.

[0049] The preparatio...

Embodiment 2

[0064]The graphene-reinforced magnesium-based composite material containing long-period structure in this embodiment is made by adding graphene into the magnesium alloy matrix, and the magnesium alloy matrix is ​​composed of magnesium alloy powder and magnesium alloy sheet, wherein graphene and The mass ratio of the magnesium alloy powder is 1:5, and the mass ratio of graphene and magnesium alloy powder as a whole to the magnesium alloy plate is 1:10; the components and mass percentages of the magnesium alloy matrix are: 9wt.%Y, 3wt.%Zn, 2wt.%Ca, 1wt.%Zr, 0.8wt.%Sb, and the balance is Mg. The above components are prepared by melting process to obtain Mg-9Y-3Zn-2Ca-1Zr- 0.8Sb alloy, for Mg-9Y-3Zn-2Ca-1Zr-0.8Sb alloy containing LPSO structure, magnesium alloy powder is obtained by atomization method, for Mg-9Y-3Zn-2Ca-1Zr-0.8Sb alloy containing LPSO structure The magnesium alloy plate is obtained by homogenization treatment.

[0065] The preparation method of the graphene-enhan...

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Abstract

The invention discloses a graphene enhanced long-period-structure-containing magnesium matrix compound material and a preparation method thereof. The graphene enhanced long-period-structure-containing magnesium matrix compound material is prepared by adding graphene to long-period-structure-containing magnesium alloy substrates, wherein the mass ratio of the graphene to magnesium alloy powder is 1 to (3-5), the mass ratio of a whole containing the graphene and the magnesium alloy powder to magnesium alloy sheets is 1 to (6-10), and the magnesium alloy substrates comprise the following components in percentage by mass of 3-9wt.% of Y, 1-3wt.% of Zn, 0.2-2wt.% of Ca, 0.2-1wt.% of Zr, 0.2-0.8wt.% of Sb, and the balance of Mg. The preparation method comprises the following steps of preparing the magnesium alloy powder and the magnesium alloy sheets; and performing drying, extruding and heat treatment on the powder. According to the preparation method disclosed by the invention, the graphene can be uniformly dispersed in the long-period-structure-containing magnesium alloy substrates, and the graphene and the magnesium alloy substrates are well combined together; and the method is simple, and low in cost.

Description

technical field [0001] The invention belongs to the technical field of metal composite materials, and in particular relates to a graphene-reinforced magnesium-based composite material containing a long-period structure and a preparation method thereof. Background technique [0002] Magnesium alloy is currently the lightest metal structural material in practical application. It has the advantages of low density, high specific strength and specific stiffness, and has a very wide application prospect in the fields of automobiles, aerospace and other fields. In recent years, the speed of aerospace and transportation vehicles is getting higher and higher, the required power is getting bigger and bigger, the stability of components is required to be high and reliable, and higher heat resistance strength and elastic deformation resistance of magnesium alloys are proposed. Requirements, while the elastic modulus of ordinary magnesium alloy is about 60% of that of aluminum alloy, gen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C23/06C22C1/03C22C1/05C22C1/10C22C32/00C22F1/06
CPCC22C1/03C22C1/05C22C23/06C22C32/0084C22F1/06
Inventor 李子炯李俊玉王征冯世全张伟阳蒋逢春冯学超
Owner ZHENGZHOU UNIVERSITY OF LIGHT INDUSTRY
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