CuCrFeNiTi high-entropy alloy material and preparation method thereof

A high-entropy alloy and molar ratio technology, applied in the fields of high hardness, metal materials and their preparation, corrosion-resistant CuCrFeNiTi high-entropy alloys and their preparation, can solve problems such as difficulty in obtaining applications, reduction in mechanical properties of alloys, etc., and achieve a preparation method. Simple and reliable, uniform alloy structure, high hardness effect

Active Publication Date: 2017-12-29
XIANGTAN UNIV
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  • Abstract
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  • Claims
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Problems solved by technology

The traditional crystallographic theory believes that the addition of too many trace alloying elements will lead to the formation of a variety of intermetallic

Method used

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

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Embodiment Construction

[0016] 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 effects of the present invention from the contents disclosed in this description.

[0017] 1. CuCrFeNiTi high entropy alloy composition design.

[0018] A CuCrFeNiTi high-entropy alloy in this embodiment is composed of Cu, Cr, Fe, Ni and Ti five elements, wherein the molar ratio of Cu:Cr:Fe:Ni:Ti is 1:1:1: 1:1.

[0019] 2. CuCrFeNiTi high entropy alloy material selection.

[0020] The purity of the Cu material, Cr material, Fe material, Ni material and Ti material used in the high-entropy alloy is not less than 99.7%, and the raw materials are in the form of flakes, blocks or large particles except powder.

[0021] 3. Preparation method of CuCrFeNiTi high entropy alloy.

[0022] A kind of preparation method of CuCrFeNiTi high-entropy alloy of the present embodiment, preparatio...

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Abstract

The invention relates to a high-entropy alloy material and a preparation technology of the high-entropy alloy material. The composition of the high-entropy alloy material is CuCrFeNiTi, wherein the mole ratio of Cu to Cr to Fe to Ni to Ti is 1:1:1:1:1 in sequence. A preparation method of the high-entropy alloy material comprises the steps that firstly, ultrasonic treatment is conducted, wherein the Cu material, the Cr material, the Fe material, the Ni material and the Ti material are processed through ultrasonic cleaning with an acetone solution and an absolute ethyl alcohol successively; secondly, material weighing is conducted, wherein the materials are weighed according to the mole ratio; and thirdly, smelting is conducted, wherein the weighed materials are repeatedly smelted for 4-5 times through a vacuum nonconsumable electrode electric arc smelting furnace so as to achieve alloy preparation. Compared with a conventional alloy material, the prepared CuCrFeNiTi high-entropy alloy material comprises a simple face-centered cubic structure, a simple body-centered cubic structure and the Laves phase, has the high hardness and high corrosion resistance, and can be applied to wear-proof and corrosion-resistant chemical containers and high-strength and corrosion-resistant parts for engineering.

Description

technical field [0001] The invention relates to a metal material and a preparation method thereof, in particular to a high-hardness, corrosion-resistant CuCrFeNiTi high-entropy alloy and a preparation method thereof, belonging to the technical field of alloy materials and preparation thereof. Background technique [0002] The traditional design concept of alloy is based on one or two elements, adding a small amount of other elements to form an alloy, such as magnesium alloy, aluminum alloy, stainless steel and bulk amorphous alloy. The traditional crystallographic theory believes that adding too much trace alloying elements will lead to the formation of various intermetallic compounds and other complex structures, which will reduce the mechanical properties of the alloy and make it difficult to be applied in practical applications. With the rapid development of today's industrial engineering technology, the lack of performance of a single material has become a bottleneck res...

Claims

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Application Information

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IPC IPC(8): C22C30/02C22C1/02
CPCC22C1/02C22C30/02
Inventor 肖逸锋龚文娟匡雯慧吴靓许艳飞钱锦文李世哲陈宇
Owner XIANGTAN UNIV
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