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A kind of high-entropy alloy micro-wire for anti-oxidation additive manufacturing and its synthesis method

A high-entropy alloy and additive manufacturing technology, applied in the direction of manufacturing tools, additive processing, furnaces, etc., can solve the problems of plasticity decline, difficulty in overcoming high strength and high life, and inability to coordinate and unify, so as to achieve stable organization and powerful processing Hardening ability, effect of uniform composition

Active Publication Date: 2022-05-27
山东大学深圳研究院 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] High-performance wire products put forward extremely high requirements on the strength and fatigue resistance of the material. At present, domestic and foreign manufacturers generally use traditional high-carbon steel as the raw material for the production of high-performance wire ropes. The strength is obtained through large deformation. It is achieved by work hardening, and its plasticity will be greatly reduced during this process, and it is difficult to overcome the problem of uncoordinated high strength and high life.

Method used

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  • A kind of high-entropy alloy micro-wire for anti-oxidation additive manufacturing and its synthesis method
  • A kind of high-entropy alloy micro-wire for anti-oxidation additive manufacturing and its synthesis method
  • A kind of high-entropy alloy micro-wire for anti-oxidation additive manufacturing and its synthesis method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A high-entropy alloy micro-wire for anti-oxidation additive manufacturing, the alloy composition of the high-entropy alloy micro-wire is Al 0.5 CoCr 0.8 FeNi 2.5 V 0.2 , that is, the atomic ratio of Al, Co, Cr, Fe, Ni, and V is 0.5:1:0.8:1:2.5:0.2. The high-entropy alloy is smelted from bulk Al, Co, Cr, Fe, Ni, and V with a purity of ≥99.99%.

[0029] The above-mentioned synthesis method of high-entropy alloy micro-wire for anti-oxidation additive manufacturing comprises the following steps:

[0030] S1. Ingredients

[0031] The surface of each metal element raw material is treated to remove the oxide skin layer, and each raw material is ultrasonically cleaned with acetone cleaning solution, and then according to the atomic ratio of each element metal element Al, Co, Cr, Fe, Ni, V 0.5:1:0.8 :1:2.5:0.2, calculate the mass of each metal element with a total mass of 30g and weigh;

[0032] S2. Preparation of alloy ingots

[0033] Using the arc smelting method, each ...

Embodiment 2

[0039] A high-entropy alloy micro-wire for anti-oxidation additive manufacturing, the alloy composition of the high-entropy alloy micro-wire is Al 0.5 CoCr 0.8 FeNi 2.5 V 0.2 , that is, the atomic ratio of Al, Co, Cr, Fe, Ni, and V is 0.5:1:0.8:1:2.5:0.2. The high-entropy alloy is smelted from bulk Al, Co, Cr, Fe, Ni, and V with a purity of ≥99.99%.

[0040] The above-mentioned synthesis method of high-entropy alloy micro-wire for anti-oxidation additive manufacturing comprises the following steps:

[0041] S1. Ingredients

[0042] The surface of each metal element raw material is treated to remove the oxide skin layer, and each raw material is ultrasonically cleaned with acetone cleaning solution, and then according to the atomic ratio of each element metal element Al, Co, Cr, Fe, Ni, V 0.5:1:0.8 :1:2.5:0.2, calculate the mass of each metal element with a total mass of 30g and weigh;

[0043] S2. Preparation of alloy ingots

[0044] Using the arc melting method, each m...

Embodiment 3

[0052] A high-entropy alloy micro-wire for anti-oxidation additive manufacturing, the alloy composition of the high-entropy alloy micro-wire is Al 0.5 CoCr 0.8 FeNi 2.5 V 0.2 , that is, the atomic ratio of Al, Co, Cr, Fe, Ni, and V is 0.5:1:0.8:1:2.5:0.2. The high-entropy alloy is smelted from bulk Al, Co, Cr, Fe, Ni, and V with a purity of ≥99.99%.

[0053] The above-mentioned synthesis method of high-entropy alloy micro-wire for anti-oxidation additive manufacturing comprises the following steps:

[0054] S1. Ingredients

[0055] The surface of each metal element raw material is treated to remove the oxide skin layer, and each raw material is ultrasonically cleaned with anhydrous ethanol cleaning solution, and then according to the atomic ratio of each element metal element Al, Co, Cr, Fe, Ni, V 0.5:1 :0.8:1:2.5:0.2, calculate the mass of each metal element with a total mass of 30g and weigh;

[0056] S2. Preparation of alloy ingots

[0057] Using the arc melting meth...

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Abstract

The invention belongs to the technical field of high-entropy alloy wire preparation, and in particular relates to a high-entropy alloy micron wire for anti-oxidation additive manufacturing and a synthesis method thereof. The high-entropy alloy composition is preferably Al 0.5 CoCr 0.8 FeNi 2.5 V 0.2 . The synthesis method is to introduce anti-oxidation Al and Cr elements on the basis of high-temperature nickel, iron and cobalt alloys, and obtain a new anti-oxidation multi-element metal alloy with a single FCC solid solution structure. This high-entropy alloy micron wire is formed into a diameter 10-80 microns and 15-25 cm in length, showing a tensile strength of up to 1.5GPa and a tensile plasticity of 3.53%, providing a new type of alloy wire for the field of additive manufacturing and broadening the scope of this type of high-entropy alloy The application prospect has great development space.

Description

technical field [0001] The invention belongs to the technical field of high-entropy alloy wire preparation, and in particular relates to a high-entropy alloy micro-wire for anti-oxidation additive manufacturing and a synthesis method thereof. Background technique [0002] High-entropy alloy is a new type of alloy system, which is based on a new alloy design concept independently proposed by Taiwanese scholar Ye Junwei and British scholar Cantor in 2004. The general definition of high-entropy alloy refers to a solid solution alloy composed of five or more elements and the percentage of each component is between 5% and 35% in an equimolar or nearly equimolar ratio. Due to its unique high-entropy effect, lattice distortion effect, slow diffusion effect and "cocktail" effect, HEA is easy to form a solid solution, and compared with traditional alloys, HEA has excellent physical and chemical properties and mechanical properties, such as high strength , high hardness, high plastic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C30/00C22C1/02B22D11/06C22F1/02C21D1/26C21D9/52B33Y70/00B22D18/06
CPCC22C30/00C22C19/058C22C1/023B22D11/001B22D11/005B22D11/0611C22F1/02C22F1/10C21D1/26C21D9/525B33Y70/00B22D18/06
Inventor 宋凯凯孙通通彭炜唐婷单飞龙郜庆伟
Owner 山东大学深圳研究院
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