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Iron-based amorphous nanocrystalline alloy prepared by utilizing positive mixing heat among elements, and preparation method and application of iron-based amorphous nanocrystalline alloy

A nanocrystalline alloy, iron-based amorphous technology, applied in electrical components, magnetic materials, circuits, etc., can solve the problems of complex preparation process and thin iron-based amorphous nanocrystalline alloy, and achieve simple preparation process and high saturation. Magnetization, effect of excellent soft magnetic properties

Active Publication Date: 2020-08-04
TIANJIN NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] The purpose of the present invention is to provide an iron-based amorphous nanocrystalline alloy prepared by utilizing the heat of positive mixing between elements in view of the technical defects in the prior art that the preparation process of the iron-based amorphous nanocrystalline alloy is complex and the thickness of the prepared iron-based amorphous nanocrystalline alloy is relatively thin. Amorphous nanocrystalline alloy. In this iron-based amorphous nanocrystalline alloy, Sn, Sb, Mg, In, La, Ce, Ag, and Bi elements with positive mixing heat with Fe are added. There are fewer types of elements, and the metal Elements contain only Fe, metalloid elements only C and P, no B and Si

Method used

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  • Iron-based amorphous nanocrystalline alloy prepared by utilizing positive mixing heat among elements, and preparation method and application of iron-based amorphous nanocrystalline alloy
  • Iron-based amorphous nanocrystalline alloy prepared by utilizing positive mixing heat among elements, and preparation method and application of iron-based amorphous nanocrystalline alloy
  • Iron-based amorphous nanocrystalline alloy prepared by utilizing positive mixing heat among elements, and preparation method and application of iron-based amorphous nanocrystalline alloy

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Embodiment 1

[0052] A method for preparing an iron-based amorphous nanocrystalline alloy by using positive mixed heat between elements, comprising the following steps:

[0053] Step 1: According to Fe 79.4 P 13 C 7 sn 0.6 The atomic percentage content of each element in the formula, the raw materials of the corresponding elements are selected and weighed and mixed to obtain the initial ingredients; the purity of the raw materials is above 99.7%.

[0054] Step 2: Put the initial ingredients into a vacuum electric arc furnace for smelting, and the electric arc furnace is first evacuated to 3×10 - 3 Pa, filled with high-purity argon gas 0.06MPa, arc melting temperature 1600 ° C, melting time 8 minutes, repeated melting 5 times, to obtain the master alloy;

[0055] Step 3: putting the master alloy into a single-roll quenching strip-making equipment for melting, and spraying the molten melt onto the surface of a high-speed rotating copper roller to cool down to obtain a strip-shaped iron-b...

Embodiment 2

[0058] A method for preparing an iron-based amorphous nanocrystalline alloy by using positive mixed heat between elements, comprising the following steps:

[0059] Step 1: According to Fe 79.2 P 13 C 7 Mg 0.8 The atomic percentage content of each element in the formula, the raw materials of the corresponding elements are selected and weighed and mixed to obtain the initial ingredients; the purity of the raw materials is above 99.7%.

[0060] Step 2: Put the initial ingredients into a vacuum electric arc furnace for smelting, and the electric arc furnace is first evacuated to 3×10 - 3 Pa, filled with high-purity argon gas 0.06MPa, arc melting temperature 1600 ° C, melting time 8 minutes, repeated melting 5 times, to obtain the master alloy;

[0061] Step 3: putting the master alloy into a single-roll quenching strip-making equipment for melting, and spraying the molten melt onto the surface of a high-speed rotating copper roller to cool down to obtain a strip-shaped iron-b...

Embodiment 3

[0063] A method for preparing an iron-based amorphous nanocrystalline alloy by using positive mixed heat between elements, comprising the following steps:

[0064] Step 1: According to Fe 64.4 co 15 P 14 C 6 Ce 0.6 The atomic percentage content of each element in the formula, the raw materials of the corresponding elements are selected and weighed and mixed to obtain the initial ingredients; the purity of the raw materials is above 99.7%.

[0065] Step 2: Put the initial ingredients into a vacuum electric arc furnace for smelting, and the electric arc furnace is first evacuated to 4×10 - 3 Pa, filled with high-purity argon gas 0.05MPa, arc melting temperature 1500 ° C, melting time 6 minutes, repeated melting 4 times, to obtain the master alloy;

[0066] Step 3: putting the master alloy into a single-roll quenching strip-making equipment for melting, and spraying the molten melt onto the surface of a high-speed rotating copper roller to cool down to obtain a strip-shaped...

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Abstract

The invention discloses an iron-based amorphous nanocrystalline alloy prepared by utilizing positive mixing heat among elements. Sn, Sb, Mg, In, La, Ce, Ag and Bi elements with positive mixing heat with Fe are added in the iron-based amorphous nanocrystalline alloy, the types of the elements are fewer, the metal element only contains Fe, metalloid element only contains C and P, B and Si are not contained, expensive elements such as Nb are not contained, the preparation process is simpler, and meanwhile the cost is reduced. According to the preparation method, by adding a small amount of positive mixed heat elements, the amorphous nanocrystalline alloy with alpha-Fe grains of a body-centered cubic structure in an as-cast state can be directly obtained, and compared with a full-amorphous alloy, the amorphous nanocrystalline alloy has more excellent soft magnetic performance. Compared with an existing amorphous nanocrystalline alloy preparation process, the method has the advantages thatvacuum or protective atmosphere annealing is not needed, the process complexity is remarkably reduced, the manufacturing cost is reduced, meanwhile, brittleness caused by annealing can be avoided, andthe convenience is brought to device manufacturing.

Description

technical field [0001] The invention relates to the technical field of iron-based amorphous alloys, in particular to an iron-based amorphous nanocrystalline alloy prepared by using positive mixing heat between elements, a preparation method and application thereof. Background technique [0002] Iron-based amorphous alloys have high strength, high hardness and excellent soft magnetic properties, and are widely used in industrial fields such as wear-resistant and corrosion-resistant coatings and power transformers. [0003] The earliest iron-based amorphous alloys developed were single amorphous phases, such as Fe-C-P synthesized in 1967 (Duwze, J.Appl.Phys., 1967,38:4096), Fe-P-B synthesized in 1971 (Yamauchi, Jpn.J.Appl.Lett., 1971,10:1730.), synthesized (Fe,Co,Ni)-Si-B in 1975 (Kikuchi, Jpn.J.Appl.Phys.,1975,14:1077) and other iron-based amorphous alloys. In the late 1980s and early 1990s, Japanese researchers developed Fe-Si-B-Cu-Nb (FINEMET) (Yoshizawa, J.Appl.Phys., 19...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C45/02B22D11/06B22D18/06H01F1/153
CPCC22C45/02C22C33/003B22D11/0611B22D18/06H01F1/15308H01F1/15325
Inventor 高敬恩任海涛
Owner TIANJIN NORMAL UNIVERSITY
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