Non-equivalent atomic ratio cocrfenimo x High entropy alloy and its preparation method

A high-entropy alloy, co30cr30fe18ni18mo4 technology, applied in the field of CoCrFeNiMox high-entropy alloy and its preparation, can solve the problems of low machinability and poor plasticity of high-entropy alloy, and achieve the advantages of short preparation period, improved alloy performance, and improved strength and plasticity. Effect

Active Publication Date: 2022-03-25
HARBIN INST OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the existing high-entropy alloys have poor plasticity and low machinability, and propose a non-equiatomic ratio of CoCrFeNiMo x High entropy alloy and its preparation method

Method used

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  • Non-equivalent atomic ratio cocrfenimo <sub>x</sub> High entropy alloy and its preparation method
  • Non-equivalent atomic ratio cocrfenimo <sub>x</sub> High entropy alloy and its preparation method
  • Non-equivalent atomic ratio cocrfenimo <sub>x</sub> High entropy alloy and its preparation method

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specific Embodiment approach 1

[0018] Specific implementation mode 1: CoCrFeNiMo with non-equiatomic ratio in this implementation mode x The expression for the high entropy alloy is CoCrFeNiMo x , where x is 0, 2 or 4, and is composed of the following raw material components according to the atomic percentage: Mo is 0% to 20%, Co is 10% to 40%, Cr is 10% to 40%, and Fe is 10% to 25%. %, Ni is 10% to 25%, and the sum of the atomic percentages of the above components is 100%.

[0019] In this embodiment, each element is in a non-equivalent atomic ratio.

specific Embodiment approach 2

[0020] Specific embodiment two: the difference between this embodiment and specific embodiment one is: CoCrFeNiMo x High-entropy alloys consist of 30% Co, 30% Cr, 18% Fe, 18% Ni, and 4% Mo in atomic percent, expressed as Co 30 Cr 30 Fe 18 Ni 18 Mo 4 . Others are the same as the first embodiment.

specific Embodiment approach 3

[0021] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is: CoCrFeNiMo x High-entropy alloys consist of 30% Co, 30% Cr, 19% Fe, 19% Ni, and 2% Mo in atomic percent, expressed as Co 30 Cr 30 Fe 19 Ni 19 Mo 2 . Others are the same as those in Embodiment 1 or 2.

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Abstract

Non-equiatomic ratio CoCrFeNiMo x High entropy alloy and preparation method thereof, the present invention relates to a kind of CoCrFeNiMo of non-equiatomic ratio x High-entropy alloys and methods for their preparation. The purpose of the present invention is to solve the problem that existing high-entropy alloys have poor plasticity, thereby restricting plastic processing. The alloy expression of the present invention is CoCrFeNiMo x , where x is 0, 2 or 4, and is composed of the following raw material components according to the atomic percentage: Mo is 0% to 20%, Co is 10% to 40%, Cr is 10% to 40%, and Fe is 10% to 25%. %, Ni is 10% to 25%, and the sum of the atomic percentages of the above components is 100%. The invention is applied to the field of high-entropy alloys.

Description

technical field [0001] The present invention relates to a kind of CoCrFeNiMo x High-entropy alloys and methods for their preparation. Background technique [0002] With the continuous advancement of science and technology and the improvement of productivity, plastic processing technology has become more and more widely used and attracted more and more attention. Different processing processes of metal materials will lead to different changes in the metallographic structure, which in turn will affect the mechanical properties of the material. Using the plastic deformation of the workpiece is the main way to achieve metal plastic processing, so as to obtain the desired shape and size. Metal materials with strong plastic deformation ability have strong mold filling ability and can form workpieces with complex shapes; multi-pass plastic forming can be changed to one-time forming, which improves the utilization rate of materials. The chemical composition, metallographic struct...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C30/00C22C1/02
CPCC22C30/00C22C1/02
Inventor 陈瑞润高雪峰刘桐方虹泽王亮苏彦庆郭景杰
Owner HARBIN INST OF TECH
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