Amorphous alloy cellular material and preparation method thereof

Abstract

The invention relates to an amorphous alloy cellular material and a preparation method of the amorphous alloy cellular material, belonging to the field of material preparation. The amorphous alloy cellular material is compounded by a hollow pipe and amorphous alloy, wherein the hollow pipe is taken as a straight through hole, the amorphous alloy is taken as a base body, the melting point of the hollow pipe is higher than that the amorphous alloy, and the amorphous alloy cellular material has higher strength. The amorphous alloy cellular material is prepared as follows: after two ends of the hollow pipe are sealed, the hollow pipe is arranged into a prefabricated body to be placed into a metal mold, an alloy or the amorphous alloy is completely melted through heating to obtain a melt under the protection of inert atmosphere, the melt is pressurized to be impregnated into a gap between a prefabricated body hollow pipe in the metal mold and the hollow pipe, and the melt is enabled to be rapidly cooled and solidified to form the amorphous alloy base body. In the invention, the porosity, the hole diameter and the overall dimension of the amorphous alloy cellular material can be conveniently controlled.

Description

technical field [0001] The invention relates to an amorphous alloy honeycomb material and a preparation method thereof, belonging to the field of material preparation. Background technique [0002] Porous material is a material with a network structure of interconnected or closed pores, and the boundary or surface of the pores is composed of pillars or plates; one of them is a two-dimensional structure formed by a large number of polygonal pores aggregated on a plane, because its shape is similar to It is called honeycomb material because of the hexagonal structure of the honeycomb. Among the honeycomb materials, the metal honeycomb material, as a functional material with a large number of through holes, high specific stiffness, high specific strength and anisotropy, has good shock absorption and noise reduction, cushioning energy absorption and electromagnetic shielding properties. [0003] At present, the preparation methods of metal honeycomb materials mainly include: (1...

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Problems solved by technology

[0003] At present, the preparation methods of metal honeycomb materials mainly include: (1) processing metal sheet strips into corrugated shapes, and then bonding or welding them into metal honeycomb materials. It is not high, which has seriously affected the strength of the metal honeycomb material itself; (2) the metal honeycomb material is prepared by using the metal powder plasticized extrusion-sintering process, although the gap between the through holes and the through holes in the method (1) has been improved. The connection performance is poor, but this method of preparing metal honeycomb materials has a high cost and is not easy to promote; (3) Gasar method to prepare honeycomb materials, this method is to use saturated dissolved hydrogen (or oxygen, nitrogen, etc.) The directional solidification of the metal melt, with the help of the large solubility difference of hydrogen in the liquid phase and the solid phase of the metal, utilizes the metal-gas eutectic reaction to make the gas phase and the solid phase grow together to obtain a directional arrangement of cylindrical pores along the solidification direction However, this preparation method is still in the research stage and cannot well control the pore size and shape of the prepared metal honeycomb material. Therefore, this method has poor repeatability and unstable performance. , Metal honeycomb materials with larger dimensions in the axial direction of the hole cannot be obtained and the cost is higher

The metal honeycomb materials prepared by the above methods generally have low strength, which restricts the use and promotion of metal honeycomb materials

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