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Fe-based nano crystal soft magnetic alloy material and preparation method thereof

A technology of iron-based nanocrystals and soft magnetic alloys, applied in the direction of magnetic materials, magnetic objects, electrical components, etc., can solve the problems of complex preparation process and increased alloy cost, and achieve simple and easy operation, high saturation magnetic induction intensity, low The effect of coercivity

Inactive Publication Date: 2015-08-12
LONDERFUL NEW MATERIAL NANTONG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the existence of a large amount of easily oxidized expensive metals such as Zr, Hf, etc., and the large amount of Co contained in HITPERM lead to an increase in the cost of the alloy and complicate the preparation process.

Method used

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  • Fe-based nano crystal soft magnetic alloy material and preparation method thereof
  • Fe-based nano crystal soft magnetic alloy material and preparation method thereof
  • Fe-based nano crystal soft magnetic alloy material and preparation method thereof

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Embodiment 1

[0038] In this embodiment, the molecular formula of the iron-based nanocrystalline soft magnetic alloy material is Fe 83 Nb 2 B 14 Cu 1 .

[0039] The preparation method of the iron-based nanocrystalline soft magnetic alloy material is as follows:

[0040] (1) Iron, cobalt, niobium, boron, and copper raw materials with a purity greater than 99% are used according to the molecular formula Fe 83 Nb 2 B 14 Cu 1 The atomic percentages of the ingredients shown are used for batching;

[0041] (2) Pack the raw materials prepared in step 1 into an arc melting furnace, and arc melting 5 times to obtain an alloy ingot with uniform composition;

[0042] (3) After crushing the alloy ingot, put an appropriate amount in the quartz tube, adopt the single-roller quenching strip technology, and throw the strip at a speed of 40m / s in an Ar atmosphere to obtain an amorphous alloy strip;

[0043] (4) Place the amorphous alloy strips in a quartz tube, and evacuate to less than 3×10 -3 Pa...

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Abstract

The invention provides a Fe-based nano crystal soft magnetic alloy material and a preparation method thereof. A molecular formula of the material is FeaNbbBcCud, wherein, a, b, c and d respectively present atom percentage content of corresponding elements, a is greater than or equal to 80 and less than or equal to 85, b is greater than or equal to 1 and less than or equal to 3, c is greater than or equal to 12 and less than or equal to 18, d is greater than or equal to 0.8 and less than or equal to 1.2, wherein, sum of a, b, c and d is 100. The alloy material has high Fe element content and low Nb element content, production cost is reduced; a structure comprises an amorphous matrix and an alpha-Fe NANO crystal grain phase with average crystal grain size less than 20nm body-centered cubic, the alloy material has high saturation magnetic induction intensity and low coercive force, so that the Fe-based nano crystal soft magnetic alloy material has the advantages of low cost and good soft-magnetic performance, and has good application prospect.

Description

technical field [0001] The invention relates to the technical field of iron-based nanocrystalline soft magnetic alloy materials, in particular to an iron-based nanocrystalline soft magnetic alloy material with low cost, high saturation magnetic induction and low coercive force and a preparation method thereof. Background technique [0002] Iron-based amorphous and nanocrystalline soft magnetic alloys have excellent properties such as high saturation magnetic induction, high strength and toughness, low loss, low coercive force, and high magnetic permeability. The products are energy-saving and environmentally friendly, miniaturized and lightweight, and are widely used in power transformers and power transformers. [0003] The iron-based nanocrystalline soft magnetic alloy is prepared from an amorphous alloy through crystallization heat treatment. The alloy structure is composed of an amorphous matrix and a nanocrystalline grain two-phase structure, so it has both traditional ...

Claims

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Application Information

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IPC IPC(8): C22C38/16C22C45/02H01F1/147
Inventor 江沐风薛琳
Owner LONDERFUL NEW MATERIAL NANTONG
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