AlFeCoNiCrTiVx high-entropy alloy material and preparation method thereof

A high-entropy alloy and alloy technology, which is applied in the field of metal materials and its preparation, can solve problems such as confining the degree of freedom of alloy composition, restricting the development of alloy microstructure and properties, theoretical analysis or practical application obstacles, etc.

Inactive Publication Date: 2013-07-10
梧州漓佳铜棒有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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] Bec

Method used

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

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Embodiment Construction

[0027] The preparation method of AlFeCoNiCrTiVx (x=0.5, 1, 1.5, 2) high-entropy alloy materials with different V content includes the following steps:

[0028] 1. Pre-treatment of raw materials, purchase pure Al, Fe, Co, Ni, Cr, Ti, V raw materials, the purity of raw materials is not less than 99.99%. Put various alloy raw materials in a beaker, pour the acetone solution, and then place it in an ultrasonic shaker to clean for about 20-30 minutes to remove the oil and impurities attached to the surface. After shaking, pour into ethanol and repeat the same steps. Once completed, place it in an oven at 50°C for 6 hours to evaporate the moisture of the raw material for smelting;

[0029] 2. Ingredients, each raw material is prepared according to the ratio of Table 1, and the raw materials are weighed and carried out on a photoelectric analysis balance with an induction volume of 0.1 mg;

[0030] Table 1 Alloy raw material ratio

[0031] Alloy

Al(g)

Fe(g)

Co(g)

Ni(g)

Cr(g)

Ti(g)...

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Abstract

The invention relates to an AlFeCoNiCrTiVx high-entropy alloy material and a preparation method thereof. The high-entropy alloy comprises a component of AlFeCoNiCrTiVx, wherein the value range of x is 0.5-2. 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 high-entropy alloy material has very good strength, tenacity, elasticity, high-temperature performance and electrochemical performance.

Description

1. Technical Field [0001] The invention relates to the technical field of metal materials and preparation methods thereof, in particular to an AlFeCoNiCrTiVx series (x is a molar ratio) high-entropy alloy material and a preparation method thereof. 2. Background technology [0002] The development concept of traditional alloys has always been: According to the requirements of certain main properties, one main element is selected, and one or two other elements are added during the alloying process to meet the requirements of some secondary properties. For example, there are currently more than 30 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 with copper as the main element; Iron-based steel materials; aluminum-based aluminum alloys; magnesium-based magnesium alloys; titanium-based titanium alloys; superalloys are divided into iron-based, nickel-based, and cobalt-based These traditional...

Claims

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Application Information

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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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