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AlxCrFeNiCuVTi high-entropy alloy material and preparation method thereof

A high-entropy alloy and alloy technology, which is applied in the field of AlxCrFeNiCuVTi high-entropy alloy materials and their preparation, can solve the problems of confining the degree of freedom of alloy composition, theoretical analysis or practical application obstacles, and limiting the development of alloy microstructure and properties.

Inactive Publication Date: 2013-07-10
梧州漓佳铜棒有限公司
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Problems solved by technology

These complex structures and the hard and brittle phases of intermetallic compounds are great obstacles to both theoretical analysis and practical application.
[0003] Because the design concept of traditional alloys restricts the freedom of alloy composition, which limits the development of special microstructure and properties of alloys

Method used

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  • AlxCrFeNiCuVTi high-entropy alloy material and preparation method thereof
  • AlxCrFeNiCuVTi high-entropy alloy material and preparation method thereof
  • AlxCrFeNiCuVTi high-entropy alloy material and preparation method thereof

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Embodiment Construction

[0022] The technical solution of the present invention will be further described below through specific examples.

[0023] Al with different Al content x The preparation method of CrFeNiCuVTi system (x=0, 0.5, 1, 1.5) high-entropy alloy material comprises the following steps:

[0024] 1. Pre-treatment of raw materials, purchase pure Al, Cr, Fe, Ni, Cu, V, Ti raw materials, and the purity of the raw materials is not less than 99.99%. Put various alloy raw materials in a beaker, pour acetone solution, and then place it in an ultrasonic oscillator for cleaning for about 20 to 30 minutes to remove oil and impurities attached to the surface, then pour ethanol into it and repeat the same steps Once, after completion, place it in an oven at 50°C for 6 hours to evaporate the moisture of the raw material for use in smelting;

[0025] 2. Ingredients, each alloy is prepared according to the ratio in Table 1, and the raw materials are weighed on a photoelectric analytical balance with a...

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Abstract

The invention relates to an AlxCrFeNiCuVTi high-entropy alloy material and a preparation method thereof. The high-entropy alloy comprises a component of AlxCrFeNiCuVTi, wherein x is a molar ratio, and the value range of x is 0.5-1.5. The preparation method of the alloy material comprises the following steps of: putting raw materials into a solution including acetone and ethanol, cleaning for 23-30 minutes by using an ultrasonic oscillator, and then drying in a 50DEG C drying oven for 6 hours; weighing alloys according to a molar ratio, and putting the alloys into a water-cooling copper crucible; when the air pressure in a furnace body reaches 3*10<-3>Pa, introducing high-purity argon to clean for 3-5 times; introducing high-purity argon to ensure that the air pressure in a furnace chamber is kept to be 0.8-0.9 atmospheric pressure, and then electrifying, wherein the smelting striking current is 30-40A, the current after stabilization is 90A, the time for smelting the alloys once is 10 seconds, and a sample needs to be smelted for 5 times repeatedly; and when the components of a smelted sample are uniformly cooled, taking the alloy out of the furnace. Compared with a conventional crystal alloy, the AlxCrFeNiCuVTi high-entropy alloy material has higher hardness, strength, high temperature stability, corrosion resistance and work hardening capacity.

Description

1. Technical field [0001] The present invention relates to the technical field of metal materials and preparation methods thereof, specifically Al x CrFeNiCuVTi high-entropy alloy material and its preparation method. 2. Background technology [0002] For a long time, the development concept of traditional alloys: according to the requirements of some main properties, select a main element, and add one or two other elements to meet the requirements of some secondary properties during the alloying process. For example, there are more than 30 kinds of alloys developed and used by humans, most of which are mainly Fe, Cu, Al, Mg, Ti, Ni, Co, Cr, Mn, Zr and other elements, such as copper alloys mainly composed of copper elements; Steel materials mainly composed of iron elements; aluminum alloys mainly composed of aluminum elements; magnesium alloys mainly composed of magnesium elements; titanium alloys mainly composed of titanium elements; superalloys are divided into iron base, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C30/00C22C1/02
Inventor 钟文华邹铁梅
Owner 梧州漓佳铜棒有限公司
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