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High-entropy AlCoCrFeNiCuC alloy and preparation method thereof

An alloy and high-entropy technology, applied in the field of corrosion-resistant high-entropy alloy preparation, can solve the problems of complex process and poor corrosion resistance of high-entropy alloys, and achieve the effects of increasing cooling rate, improving corrosion resistance and good corrosion resistance.

Inactive Publication Date: 2014-04-30
SHENYANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These methods are either complicated in process, or the prepared high-entropy alloy has poor corrosion resistance.

Method used

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  • High-entropy AlCoCrFeNiCuC alloy and preparation method thereof
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  • High-entropy AlCoCrFeNiCuC alloy and preparation method thereof

Examples

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Effect test

Embodiment 1

[0022] Its described high-entropy AlCoCrFeNiCuC alloy has the following composition and atomic percentage: 100% Al, 100% Co, 100% Cr, 100% Fe, 100% Ni, 50% Cu, 10% C.

[0023] The present invention provides above-mentioned preparation high entropy AlCoCrFeNiCu 0.5 C 0.1 The preparation method of alloy, concrete steps are as follows:

[0024] (1) Ingredients: Al, Co, Cr, Fe, Ni, Cu and C with a purity of not less than 99.9 wt% were used as the elemental raw materials used in the test. Use a steel brush to remove the oxide film on the surface of Al, Co, Cr, Fe, Ni and Cu, and use a precision electronic balance to weigh the above-mentioned elemental raw materials. The total mass of the above-mentioned elemental raw materials is 120 grams. Then use petroleum ether and absolute ethanol to ultrasonically clean the above-mentioned simple raw materials, and finally mix the above-mentioned simple raw materials into a tungsten magnetron electric arc furnace.

[0025] (2) Master alloy...

Embodiment 2

[0031] Its described high-entropy AlCoCrFeNiCuC alloy has the following composition and atomic percentage: 100% Al, 100% Co, 100% Cr, 100% Fe, 100% Ni, 50% Cu, 50% C.

[0032] The present invention provides above-mentioned preparation high entropy AlCoCrFeNiCu 0.5 C 0.5 The preparation method of alloy, concrete steps are as follows:

[0033] (1) Ingredients: Al, Co, Cr, Fe, Ni, Cu and C with a purity of not less than 99.9 wt% were used as the elemental raw materials used in the test. Use a steel brush to remove the oxide film on the surface of Al, Co, Cr, Fe, Ni and Cu, and use a precision electronic balance to weigh the above-mentioned elemental raw materials. The total mass of the above-mentioned elemental raw materials is 120 grams. Then use petroleum ether and absolute ethanol to ultrasonically clean the above-mentioned simple raw materials, and finally mix the above-mentioned simple raw materials into a tungsten magnetron electric arc furnace.

[0034] (2) Master alloy...

Embodiment 3

[0040] Its described high-entropy AlCoCrFeNiCuC alloy has the following composition and atomic percentage: 100% Al, 100% Co, 100% Cr, 100% Fe, 100% Ni, 50% Cu, 100% C.

[0041] The present invention provides above-mentioned preparation high entropy AlCoCrFeNiCu 0.5 The preparation method of C alloy, concrete steps are as follows:

[0042] (1) Ingredients: Al, Co, Cr, Fe, Ni, Cu and C with a purity of not less than 99.9 wt% were used as the elemental raw materials used in the test. Use a steel brush to remove the oxide film on the surface of Al, Co, Cr, Fe, Ni and Cu, and use a precision electronic balance to weigh the above-mentioned elemental raw materials. The total mass of the above-mentioned elemental raw materials is 120 grams. Then use petroleum ether and absolute ethanol to ultrasonically clean the above-mentioned simple raw materials, and finally mix the above-mentioned simple raw materials into a tungsten magnetron electric arc furnace.

[0043] (2) Master alloy sme...

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Abstract

The invention discloses a corrosion-resistant high-entropy AlCoCrFeNiCuC alloy and a preparation method thereof; the corrosion-resistant high-entropy AlCoCrFeNiCuC alloy comprises the following components in atomic percentage: 100% of Al, 100% of Co, 100% of Cr, 100% of Fe, 100% of Ni, 50% of Cu and 10-100% of C. The preparation method comprises the steps of (1) burdening, (2) smelting of a mother alloy, and (3) spray casting of a copper mold. The high-entropy AlCoCrFeNiCuC alloy system, related by the invention, is prepared by adopting the copper mold spray casting method. The alloy prepared by the copper mold spray casting method has excellent corrosion resistant performance. The high-entropy AlCoCrFeNiCu0.5C0.1 (atomic percent) alloy structure prepared by the copper mold spray casting method consists of solid solution with a simple structure without appearing complex intermetallic compound, so that the corrosion resistance of the alloy is preferably improved.

Description

technical field [0001] The invention relates to a method for preparing a corrosion-resistant high-entropy alloy, in particular to a corrosion-resistant high-entropy AlCoCrFeNiCuC alloy and a preparation method thereof. Background technique [0002] The design concept of traditional alloys is to take one or two elements as the main elements, and add appropriate amount of other elements to improve the properties of the alloy, so as to obtain the desired alloy. In 1995, Ye Junwei broke the traditional concept of alloy design and proposed a new alloy design concept to prepare multi-principal high-entropy alloys, referred to as high-entropy alloys. At the same time, high-entropy alloys have many excellent properties, such as high hardness, high strength, temper softening resistance, high thermal stability, wear resistance, corrosion resistance, etc., and their properties are superior to traditional alloys in many aspects. [0003] Corrosion of materials is not an unfamiliar topi...

Claims

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Application Information

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IPC IPC(8): C22C30/02C22C1/03
Inventor 马国峰张鸿龄贺春林刘岩
Owner SHENYANG UNIV
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