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Amorphous nanocrystalline high-entropy soft magnetic alloy and preparation method thereof

A technology of amorphous, nanocrystalline and soft magnetic alloys, which is applied in the direction of magnetic materials, magnetic objects, electrical components, etc., can solve the problems of low saturation magnetic flux density, low magnetostriction, high magnetic permeability, etc., and achieve the reduction of annealing Temperature and time, increase accuracy, design reasonable effect

Inactive Publication Date: 2018-08-14
HENAN ZHONGYUE AMORPHOUS NEW MATERIALS +1
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  • Application Information

AI Technical Summary

Problems solved by technology

Iron-based amorphous alloys have large magnetostriction, but they do not have high magnetic permeability compared with cobalt-based amorphous alloys
Cobalt-based amorphous alloy has low magnetostriction and high magnetic permeability, but its saturation magnetic flux density is usually low (less than or equal to 1T)

Method used

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  • Amorphous nanocrystalline high-entropy soft magnetic alloy and preparation method thereof
  • Amorphous nanocrystalline high-entropy soft magnetic alloy and preparation method thereof
  • Amorphous nanocrystalline high-entropy soft magnetic alloy and preparation method thereof

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Embodiment 1

[0036] A Novel Soft Magnetic High Entropy Amorphous Alloy Fe 29.334 co 29.334 Ni 29.334 Zr 7 B 4 Cu 1 (at%). Its preparation method comprises the following steps:

[0037] (1) Batching: the raw materials Fe (99.9wt%), Co (99.9wt%), Ni (99.9wt%), Zr (99.9wt%), FeB (containing Fe and B are respectively 79.51wt%, 19.62 wt%) and Cu (99.9wt%) were dosed according to the atomic percentage content in the above alloy expression with a MET TLER TOLEDO ten-thousandth balance.

[0038] (2) Melting the master alloy: Put the prepared master alloy components into the boron nitride crucible, try to put the alloy steel or alloy elements with high density and low melting point on it, and then put it into the vacuum induction melting chamber for induction The coil is evacuated by a mechanical pump and a diffusion pump in turn, and when the vacuum degree reaches 3.0×10-3Pa, it is filled with 0.05MPa argon gas with a purity of 99.999% as a protective gas. Then start to smelt the master al...

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Abstract

The invention relates to a novel amorphous nanocrystalline high-entropy soft magnetic alloy and a preparation method thereof. The chemical formula of the alloy is FeaCobNicZrdBeCuf, wherein a, b, c, d, e and f in the chemical formula represent the atomic percentage contents of the corresponding components and meet the following conditions that a is 25-35, b is 25-35, c is 25-35, d is 6.0-8.0, e is1.0-5.0, f is 0.5-1.5, and the sum of a, b, c, d, e and f is 100. The novel amorphous nanocrystalline high-entropy soft magnetic alloy has the advantages of being excellent in magnetic performance, low in cost and good in formability, and the preparation process conditions are loose and simple.

Description

technical field [0001] The invention relates to an amorphous nanocrystalline high-entropy soft magnetic alloy with high saturation magnetic induction, low coercive force, high magnetic permeability and excellent corrosion resistance and a preparation method thereof, belonging to the amorphous nanocrystalline high-entropy soft magnetic alloy technology field. Background technique [0002] High-entropy amorphous alloys are a new type of material proposed by Ye Junwei et al. in the 1990s. High-entropy alloys are usually composed of four or more main components, and each component is between 5 and 35%. A class of alloys. High entropy alloys have broad application prospects due to their excellent properties such as high hardness, high strength, good high temperature oxidation resistance and wear resistance. Recent studies have shown that, unlike traditional solid-solution high-entropy alloys, high-entropy alloys can also form amorphous structures in some special alloy systems, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C45/00C22F1/16H01F1/153
CPCH01F1/15308C22C45/008C22F1/16C22C1/11
Inventor 董晓源许晓飞张航李福山魏然陈辰王坦董晓磊李希涛冯建峰牛鹏飞
Owner HENAN ZHONGYUE AMORPHOUS NEW MATERIALS
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