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Preparation method of biomimetic impact-resistant multilayer composite gradient material based on amorphous alloy

An amorphous alloy and multi-layer composite technology, which is applied in the field of bionics and 3D printing materials, can solve problems such as temperature exceeding and material crystallization, and achieve excellent wear resistance and impact resistance.

Active Publication Date: 2021-05-25
JILIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] At present, the 3D printing of amorphous alloy materials is mainly formed based on the selective laser melting technology. When the high-energy beam laser is used to heat and melt the powder, the high temperature generated will cause the powder to melt to form a molten pool. By adjusting the laser parameters, the formed material is extremely cooled, thereby Amorphous alloy material parts are obtained, but when the laser is used to heat and melt the powder, the high temperature generated will cause the temperature of some materials to exceed the supercooled liquid temperature range, resulting in the crystallization of some materials

Method used

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  • Preparation method of biomimetic impact-resistant multilayer composite gradient material based on amorphous alloy
  • Preparation method of biomimetic impact-resistant multilayer composite gradient material based on amorphous alloy
  • Preparation method of biomimetic impact-resistant multilayer composite gradient material based on amorphous alloy

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preparation example Construction

[0034] see Figure 1 to Figure 3As shown, the preparation method of the bionic impact-resistant multi-layer composite gradient material based on amorphous alloy of the present invention is to establish a CAD model by selecting woodpecker beaks, oyster shells and other biological materials with porous gradient characteristics and multi-layer composite characteristics as bionic models, The bionic impact-resistant multi-layer composite gradient material is prepared by using amorphous alloy powder as the raw material and the selective laser melting forming technology, and the materials of different layers are printed by 3D printing, so as to obtain the bionic material with high impact load resistance. Multilayer composite gradient material. Through the comparative analysis of the biomimetic impact-resistant multilayer composite gradient material, alloy material and pure amorphous alloy material, we can find that the biomimetic impact-resistant multilayer composite gradient materia...

Embodiment

[0048] This embodiment provides a metal composite material for 3D printing. The raw material is uniform and fine zirconium-copper-aluminum-nickel alloy powder. By setting different laser parameters, an amorphous alloy layer and a crystalline alloy layer with different porosity are printed.

[0049] 1) Select biomaterial structures such as woodpecker beaks and oyster shells with excellent wear resistance, crack arrest, and fatigue resistance as bionic models. The layered differences in peeling behavior and mechanical properties were tested to obtain the mechanical parameters and pore characteristics of the material structure. Establish the CAD model of the multi-layer composite gradient material part, the cuboid model, length × width × height: 60mm × 30mm × 10mm.

[0050] 2) Use laser as the processing heat source, select Zr-based zirconium-copper-aluminum-nickel alloy powder material, determine laser processing parameters power P=300~500W, beam diameter D=1mm, beam moving spee...

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Abstract

The invention relates to a preparation method of a bionic impact-resistant multilayer composite gradient material based on an amorphous alloy, and belongs to the technical field of 3D printing materials. By selecting woodpecker beak, oyster shell and other biomaterials with porous gradient characteristics and multi-layer composite characteristics as bionic models to establish a CAD model, using amorphous alloy powder as raw materials, and using selective laser melting forming technology to prepare the bionic model The impact-resistant multilayer composite gradient material is printed with different layers of materials by 3D printing, so as to obtain a biomimetic multilayer composite gradient material with resistance to high impact loads. Through the comparative analysis of the biomimetic impact-resistant multilayer composite gradient material, the alloy material and the pure amorphous alloy material, it is found that the biomimetic impact-resistant multilayer composite gradient material can print the amorphous alloy layer and the alloy layer with different porosity. The crystalline alloy layer simulates the porous gradient properties and multi-layer composite properties of the biomimetic sample, resulting in good impact resistance.

Description

technical field [0001] The invention relates to the technical field of bionics and 3D printing materials, in particular to a method for preparing an impact-resistant multi-layer composite gradient material for 3D printing based on bionic principles, especially a bionic impact-resistant multi-layer composite gradient based on amorphous alloys Material preparation method. The material prepared by the invention has high impact resistance and energy absorption, and can be used in aerospace, civil engineering, transportation and other fields, including police and military protective equipment and the like. Background technique [0002] Natural evolution makes biomaterials have optimized macro- and micro-structures, self-adaption and self-healing capabilities, as well as excellent impact resistance, crack arrest, and fatigue resistance. Biomimetic materials usually refer to artificial materials designed and manufactured by imitating the operating mode of living things and the str...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F3/11B22F7/02B33Y10/00
CPCB22F7/004B33Y10/00B22F2999/00B22F10/28Y02P10/25
Inventor 马志超李伟智佟帅强振峰张微杜海瑞肖国林
Owner JILIN UNIV
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