High-entropy reinforced amorphous alloy composite material and preparation method thereof

A technology for composite materials and amorphous alloys, which is applied in the field of high-entropy enhanced amorphous alloy composite materials and its preparation, can solve the problems that cannot completely solve the plasticity of amorphous alloys, achieve constrained net shape, improve the brittleness of amorphous alloys, The effect of improving plasticity

Active Publication Date: 2022-01-28
AVIC BEIJING INST OF AERONAUTICAL MATERIALS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At the same time, the amorphous forming ability of the alloy is also closely related to the composition of the alloy. At present, it is difficult to find alloys with high amorphous forming ability and high plastic deformation ability.
Therefore, the problem of plasticity of amorphous alloys cannot be completely solved by developing alloys with large Poisson's ratios

Method used

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  • High-entropy reinforced amorphous alloy composite material and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The volume fraction of the high-entropy reinforced phase in the composite material is 0.8%, and the size of the high-entropy alloy reinforced phase is 40 μm.

Embodiment 2

[0034] The volume fraction of the high-entropy reinforced phase in the composite material is 0.5%, and the size of the high-entropy alloy reinforced phase is 50 μm.

Embodiment 3

[0036] The volume fraction of the high-entropy reinforced phase in the composite material is 0.3%, and the size of the high-entropy alloy reinforced phase is 60 μm.

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Abstract

The invention belongs to the technical field of composite materials and preparation thereof, and relates to a high-entropy reinforced amorphous alloy composite material and a preparation method thereof. The composite material is composed of a Cr-Fe-Ni-Ta-Mo-V high-entropy alloy phase reinforced Co-Fe-Ta-La-B amorphous alloy matrix, the volume of the high-entropy phase accounts for 0.1%-1% of the total volume of the composite material, and the size of the high-entropy alloy reinforced phase ranges from 30 micrometers to 80 [mu]m; the amorphous alloy matrix comprises the following components in percentage by atom: 15%-25% of Fe, 2%-10% of Ta, 11%-17% of La, 15%-25% of B and the balance of Co; the high-entropy alloy reinforcement phase comprises the following components in percentage by atom: 15%-25% of Fe, 10%-20% of Ni, 15%-25% of Ta, 7%-16% of Mo, 10%-20% of V and the balance of Cr; a laser additive manufacturing technology is adopted for preparation, the block high-entropy reinforced amorphous alloy composite material is finally obtained, and the plasticity and toughness of the composite material can be enhanced.

Description

technical field [0001] The invention belongs to the technical field of composite materials and their preparation, and relates to a high-entropy reinforced amorphous alloy composite material and a preparation method thereof. Background technique [0002] Compared with traditional bulk crystalline materials, bulk amorphous alloys have high fracture strength and yield strength, high hardness, high specific strength and high elastic limit, and can be used as high-performance structural materials. But the fly in the ointment is that the macroscopic plasticity of amorphous alloys, especially the poor tensile plasticity, has always been the bottleneck of its application as an excellent structural material. People have improved the plasticity of amorphous alloys by developing new amorphous alloy components with high plastic deformation ability, adding a second phase to the amorphous alloy matrix, and surface treatment. For example, finding an amorphous alloy composition with a high...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C45/04C22C30/00B22F10/28B33Y10/00B33Y70/00B33Y80/00C22C1/04
CPCC22C45/04C22C30/00C22C27/02B22F10/28B33Y10/00B33Y70/00B33Y80/00C22C2200/02Y02P10/25
Inventor 陈冰清梁家誉闫泰起赵梓钧雷杨
Owner AVIC BEIJING INST OF AERONAUTICAL MATERIALS
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