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CrCuNiMoV high-entropy alloy material and preparation method thereof

A technology of high-entropy alloys and alloy materials, which is applied in the field of alloy materials and their preparation, can solve the problems of increased brittleness of alloys, reduced mechanical properties of metals, and limited number of alloy systems, and achieves uniform structure of alloys, broad application prospects, and excellent wear resistance Effect

Inactive Publication Date: 2018-12-18
XIANGTAN UNIV +1
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  • Claims
  • Application Information

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Problems solved by technology

According to the traditional alloy experience, when the number of elements in the alloy increases, a large number of intermetallic compounds or complex solid solution phases will be formed, which will increase the brittleness of the alloy and reduce the mechanical properties of the metal.
In addition, it also makes it difficult to analyze the composition and types of alloys, so it is generally believed that the fewer types of alloying elements added, the better, but this makes the number of alloy systems designed by traditional alloy design concepts very limited, which is not conducive to the transformation of alloys into multi-principal direction development

Method used

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Embodiment Construction

[0017] The preparation method and process performance of the present invention are illustrated by specific specific examples below, and those skilled in the art can fully understand the advantages and functions of the present invention from the contents disclosed in this specification.

[0018] 1. CrCuNiMoV high entropy alloy composition design.

[0019] This embodiment is a CrCuNiMoV high-entropy alloy composed of five elements, Cr, Cu, Ni, Mo and V, wherein the molar ratio of Cr: Cu: Ni: Mo: V is 1:1:1:1: 1.

[0020] 2. Preparation of CrCuNiMoV high entropy alloy.

[0021] The preparation of high-entropy alloys is the most critical step, and the preparation process is as follows:

[0022] 1) Raw material preparation: The alloy smelting raw materials used in the present invention are high-purity (purity not less than 99.5%) Cr, Cu, Ni, Mo and V materials, and the shapes of the raw materials used are flakes and blocks except powder or large granular;

[0023] 2) Weighing: ...

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Abstract

The invention discloses a CrCuNiMoV high-entropy alloy material and a preparation method thereof, and belongs to the field of alloy material preparation. The CrCuNiMoV high-entropy alloy is prepared from the elements such as Cr, Cu, Ni, Mo and V. The preparation method comprises the following steps of (1) weighing materials: weighing various metal materials according to the equal molar ratio; and(2) melting the alloy: using a non-self-consumed vacuum arc melting furnace for repetitively melting the weighed materials for more than four times. The CrCuNiMoV high-entropy alloy prepared through the invention is provided with main composition phases: an FCC phase and a small number of Laves phase, has the advantages of wear resistance and corrosion resistance, and has a good application prospect in the fields of wear resistance and corrosion resistance.

Description

technical field [0001] The invention relates to a high-entropy alloy material and a preparation method thereof, in particular to a wear-resistant and corrosion-resistant CrCuNiMoV high-entropy alloy and a preparation method thereof, belonging to the technical field of alloy materials and their preparation. Background technique [0002] The traditional alloy is mainly based on one metal element (the content is generally more than 50%), and the alloy with specific properties can be obtained by adding a certain amount of other alloy elements and using different production and processing techniques. According to the traditional alloy experience, when the number of elements in the alloy increases, a large number of intermetallic compounds or complex solid solution phases will be formed, which will increase the brittleness of the alloy and reduce the mechanical properties of the metal. In addition, it also makes it difficult to analyze the composition and types of alloys, so it is...

Claims

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Application Information

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IPC IPC(8): C22C30/02C22C1/02
CPCC22C1/02C22C30/02
Inventor 肖逸锋夏秀艳邓季龙许艳飞吴靓钱锦文张乾坤贾友禄周水波叶明强曾毅夫谢祎
Owner XIANGTAN UNIV
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