CuCrFeNiTi high-entropy alloy material and preparation method thereof

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...

AI Technical Summary

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 compounds and other complex structures, which will reduce the mechanical properties of the alloy and make it difficult to be applied in practical applications.

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