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Low-cobalt nickel nanocrystalline iron-base magnetically soft alloy material and preparation method thereof

A soft magnetic alloy, nanocrystalline technology, applied in magnetic materials, magnetic objects, electrical components, etc., can solve the problems of high content, element segregation, affecting material properties, etc., to achieve simple preparation process, high saturation magnetic induction intensity, and ensure magnetic energy effect

Inactive Publication Date: 2012-12-19
NANJING UNIV OF INFORMATION SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, Nb, Zr, Hf, Mo, W, and Ta are all rare and noble elements with relatively high melting points, and their contents are also very high, which can easily cause element segregation during melting and affect the performance of materials.

Method used

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  • Low-cobalt nickel nanocrystalline iron-base magnetically soft alloy material and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0027] The low-cobalt nickel nanocrystalline iron-based soft magnetic alloy material of the present invention, the specific preparation steps are as follows:

[0028] (1) First, the weight percentage of each component is: Co 4%, Ni 5%, Gd 3%, Ir 0.01%, Tm 0.1%, Dy 0.1%, Al 2%, P 0.1%, B 1%, The rest is Fe for batching, the purity of raw materials Co, Ni, Ir, Tm, Dy, Al, P, B, Fe is all greater than 99.9%, Gd is added in the form of iron-gadolinium master alloy, and the weight percentage of Gd in the iron-gadolinium alloy is 35%;

[0029] (2) Put the raw materials into a vacuum induction furnace for melting, the melting temperature is 1590°C, pour and cool to obtain the master alloy;

[0030] (3) Then put the master alloy into a remelting tubular crucible for remelting. The remelting temperature is 1570-1590°C. The remelting tubular crucible is placed in a vacuum induction forming furnace. The top of the crucible is placed about 3mm below the rim of the vacuum induction formi...

Embodiment 2

[0033] The percentage by weight of each component in the low-cobalt nickel nanocrystalline iron-based soft magnetic alloy material is: Co 6.5%, Ni 8%, Gd 5%, Ir 0.05%, Tm 0.5%, Dy 0.5%, Al 4%, P 0.5%, B 3%, all the other are Fe to carry out batching, other processes are the same as embodiment one.

Embodiment 3

[0035] The percentage by weight of each component in the low-cobalt nickel nanocrystalline iron-based soft magnetic alloy material is: Co5%, Ni6%, Gd4%, Ir 0.03%, Tm0.4%, Dy0.4%, Al 3%, P 0.3%, B 2%, all the other are Fe to carry out batching, other processes are with embodiment one.

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Abstract

The invention provides a low-cobalt nickel nanocrystalline iron-base magnetically soft alloy material and a preparation method thereof. Under the condition of ensuring better soft magnetic property, the material not only reduces the high-price metal cobalt but also has good magnetic property. The preparation method has simple process and low production cost and is suitable for industrial production. The material comprises the following components by weight percent: 4-6.5% of Co, 5-8% of Ni, 3-5% of Gd, 0.01-0.05% of Ir, 0.1-0.5% of Tm, 0.1-0.5% of Dy, 2-4% of Al, 0.1-0.5% of P, 1-3% of B and the balance of Fe.

Description

technical field [0001] The invention belongs to the technical field of metal materials, and relates to a low-cobalt nickel nanocrystalline iron-based soft magnetic alloy material and a preparation method. Background technique [0002] Application No. CN201010176204.2 relates to an iron-cobalt-based nanocrystalline soft magnetic alloy, the alloy includes the following components, the molar percentages: Fe40%-42.8%; Co40%-42.8%; M5%-8%; B5%-12 %; Cu0.1%~1.5%, wherein M is at least one of Nb, Zr, Hf, Mo, W, Ta. The invention also discloses a preparation method of the soft magnetic alloy. . [0003] The cobalt content in this material is too high. In addition, Nb, Zr, Hf, Mo, W, and Ta are rare and noble elements with relatively high melting points, and their contents are also very high, which can easily cause element segregation during melting and affect the performance of the material. Contents of the invention [0004] The purpose of the present invention is exactly to ...

Claims

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Application Information

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IPC IPC(8): C22C38/10C22C33/06C22C45/02B22D11/06H01F1/147H01F1/153
Inventor 张群赵浩峰王玲张咏刘光宇邱奕婷林莹莹郑泽昌张金花陆阳平唐江平刘学剑
Owner NANJING UNIV OF INFORMATION SCI & TECH
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