CuCrCoFeNiZrx high-entropy alloy and preparation method of CuCrCoFeNiZrx high-entropy alloy

A technology of high-entropy alloys and cuboids, applied in the preparation of the above-mentioned CuCrCoFeNiZrx high-entropy alloys, in the field of CuCrCoFeNiZrx high-entropy alloys, to achieve the effects of high hardness, small dendrites, and low cost

Inactive Publication Date: 2021-01-12
XIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are currently few methods for using high-entropy alloys as transition layers for heterogeneous material connections. Therefore, research on high-entropy alloys with good properties will provide experimental basis and technical support for introducing high-entropy alloys into the connection of heterogeneous materials in the future, and It is of great significance to accelerate the practical application of high-entropy alloys

Method used

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  • CuCrCoFeNiZrx high-entropy alloy and preparation method of CuCrCoFeNiZrx high-entropy alloy
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  • CuCrCoFeNiZrx high-entropy alloy and preparation method of CuCrCoFeNiZrx high-entropy alloy

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Step 1, take the following raw materials respectively by atomic percentage:

[0048] Zr is 20%, Fe is 25%, Ni is 10%, Cu is 10%, Cr is 10%, Co is 25%, the sum of the atomic percentages of the above components is 100%, and Cr, Co and Fe are all Powder with a particle size of 50-400 mesh and a purity of 99.9%. Zr is a powder with a particle size of 50-400 mesh and a purity of 99.9%. Cu and Ni are cuboid rods with a purity of 99.9%. Cu and Ni rods are placed before weighing Put it in an alcohol container with a concentration greater than 99.7%, and place the container in a KQ-50DE digitally controlled ultrasonic cleaner for 20 minutes, then vacuum-dry it and weigh it with an electronic balance with an accuracy of 0.001g;

[0049] Step 2. Arrange the raw materials Ni, Zr, Cr, Fe, Co, and Cu weighed in step 1 in the order from top to bottom and place them in the sample tank of the water-cooled copper mold of the vacuum arc melting furnace for melting. The vacuum degree of t...

Embodiment 2

[0051] Step 1, take the following raw materials respectively by atomic percentage:

[0052] Zr is 10%, Fe is 5%, Ni is 20%, Cu is 25%, Cr is 20%, Co is 20%, the sum of the atomic percentages of the above components is 100%, and Cr, Co and Fe are all Powder with a particle size of 50-400 mesh and a purity of 99.9%. Zr is a powder with a particle size of 50-400 mesh and a purity of 99.9%. Cu and Ni are cuboid rods with a purity of 99.9%. Cu and Ni rods are placed before weighing Place the container in an alcohol container with a concentration greater than 99.7%, and place the container in a KQ-50DE digitally controlled ultrasonic cleaner for 22 minutes, then vacuum-dry it and weigh it with an electronic balance with an accuracy of 0.001g;

[0053] Step 2. Arrange the raw materials Ni, Zr, Cr, Fe, Co, and Cu weighed in step 1 in the order from top to bottom and place them in the sample tank of the water-cooled copper mold of the vacuum arc melting furnace for melting. The vacuum...

Embodiment 3

[0055] Step 1, take the following raw materials respectively by atomic percentage:

[0056] Zr is 25%, Fe is 8%, Ni is 15%, Cu is 12%, Cr is 25%, Co is 15%, the sum of the atomic percentages of the above components is 100%, and Cr, Co and Fe are all Powder with a particle size of 50-400 mesh and a purity of 99.9%. Zr is a powder with a particle size of 50-400 mesh and a purity of 99.9%. Cu and Ni are cuboid rods with a purity of 99.9%. Cu and Ni rods are placed before weighing Place the container in an alcohol container with a concentration greater than 99.7%, and place the container in a KQ-50DE digitally controlled ultrasonic cleaner for 23 minutes, then vacuum-dry it and weigh it with an electronic balance with an accuracy of 0.001g;

[0057] Step 2. Arrange the raw materials Ni, Zr, Cr, Fe, Co, and Cu weighed in step 1 in the order from top to bottom and place them in the sample tank of the water-cooled copper mold of the vacuum arc melting furnace for melting. The vacuum...

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Abstract

The invention discloses a CuCrCoFeNiZrx high-entropy alloy. The CuCrCoFeNiZrx high-entropy alloy is composed of the following raw material components in percentage by atom: 5%-35% of Zr, 5%-25% of Fe,5%-20% of Ni, 5%-25% of Cu, 5%-35% of Cr and 5%-25% of Co, and the sum of the atomic percentages of the components is 100%. The invention further discloses a preparation method of the CuCrCoFeNiZrx high-entropy alloy. The CuCrCoFeNiZrx high-entropy alloy is obtained by placing the raw materials in a vacuum arc melting furnace from top to bottom according to the melting point and smelting the rawmaterials multiple times. The high-entropy alloy prepared through the method is low in cost, simple in process, easy to implement and short in smelting period, has the characteristics of being more uniform in structure and fine in dendritic crystal, has the characteristic of a simple single solid solution structure, can be applied to a transition layer of a heterogeneous alloy, and has great development potentials.

Description

technical field [0001] The invention belongs to the technical field of alloy preparation, and relates to a CuCrCoFeNiZrx high-entropy alloy, and also relates to a preparation method of the CuCrCoFeNiZrx high-entropy alloy. Background technique [0002] With the urgent demand of national defense technology and weaponry for high-strength, high-reliability functional and structurally integrated heterogeneous composite materials, the connection technology of heterogeneous alloys is becoming more and more extensive, such as magnesium / aluminum alloy, ceramic / steel, titanium alloy / Stainless steel connections, etc. Due to the mismatch of physical, chemical and mechanical properties in the joint of heterogeneous alloys, and the intermetallic compounds produced in the joints of heterogeneous alloys are all hard and brittle intermediate phases, these directly affect the interface mechanical properties of the two dissimilar materials. Therefore, forming a good metallurgical bonding jo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C30/02C22C1/02
CPCC22C1/02C22C30/02
Inventor 杨晓红张宝察邹军涛肖鹏梁淑华
Owner XIAN UNIV OF TECH
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