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Pre-alloyed high-entropy alloy porous material and preparation method thereof

A pre-alloying, high-entropy alloying technology, applied in the field of alloy material preparation, can solve the problems of uneven interconnected pores, excessive size, corrosion resistance and weak shear strength of porous materials, and achieve rich pores and uniform pore size distribution. , Excellent effect of high temperature resistance and corrosion resistance

Active Publication Date: 2020-03-27
永州市产商品质量监督检验所
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  • Abstract
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  • Application Information

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Problems solved by technology

[0006] However, the porous material made by this method has uneven and large interconnected pores, and its corrosion resistance and shear strength are relatively weak, which is not conducive to use in a strong oxidizing environment.

Method used

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  • Pre-alloyed high-entropy alloy porous material and preparation method thereof
  • Pre-alloyed high-entropy alloy porous material and preparation method thereof
  • Pre-alloyed high-entropy alloy porous material and preparation method thereof

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Embodiment Construction

[0034] The present invention will be further described below in conjunction with specific examples, so that those skilled in the art can better understand the present invention and implement it, but the given examples are not intended to limit the present invention.

[0035] A pre-alloyed CrCuNiMoV high-entropy alloy porous material. In this embodiment, the composition of the pre-alloyed high-entropy alloy porous material is CrCuNiMoV, and the molar ratio of Cr:Cu:Ni:Mo:V is: 1: 1:1:1:1.

[0036] The specific preparation process of the above-mentioned pre-alloyed CrCuNiMoV high-entropy alloy porous material is as follows:

[0037] The first step, raw material weighing: Weigh ultrasonically treated Cr material, Cu material, Ni material, Mo material, V material according to equimolar ratio; the forms of Cu, Cr, Ni, Mo and V materials are all except powder flakes, lumps or large granules, and their respective purity ≥ 99.5%.

[0038] The second step is atomization powder making...

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Abstract

The invention provides a pre-alloyed high-entropy alloy porous material and a preparation method thereof. The component of the high-entropy alloy porous material is CrCuNiMoV, wherein the molar ratioof Cr to Cu to Ni to Mo to V is 1 to 1 to 1 to 1 to 1. According to the method for preparing pre-alloy powder, the porosity uniformity among metal particles is effectively improved, meanwhile, the corrosion resistance and the shearing strength of the metal particles are effectively improved, the material is conveniently used in a strong oxidizing environment, the application range of the materialis effectively improved, the economic value of the material is effectively improved, meanwhile, chemical components of the pre-alloyed powder obtained by the method are extremely uniform, and the porous material can be obtained through short-time sintering, so that the defects of long-time diffusion and difficulty in homogenization in the process of preparing the porous material by adopting element powder are avoided.

Description

technical field [0001] The invention relates to the technical field of preparation of alloy materials, in particular to a pre-alloyed high-entropy alloy porous material and a preparation method thereof. Background technique [0002] Porous materials have the advantages of low density, large specific surface area, good air permeability, and large adsorption capacity, and are widely used in metallurgy, machinery, aerospace, petrochemical, chemical, electronics, food, medicine, environmental protection and other industries. Porous materials include ceramic porous materials and metallic porous materials. Ceramic porous materials have excellent properties such as high temperature resistance and corrosion resistance, and are widely used in the chemical and petrochemical fields. However, the shortcomings of ceramic porous materials such as brittleness, difficulty in welding and poor sealing restrict the expansion of their application fields; although metal porous materials have goo...

Claims

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Application Information

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IPC IPC(8): C22C30/02B22F3/11B22F9/08B22F3/02B22F3/10C22C1/08
CPCC22C30/02B22F3/11B22F9/082B22F3/02B22F3/1017
Inventor 李勇齐珩刘芳曾令平
Owner 永州市产商品质量监督检验所
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