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An iron-based amorphous nanocrystalline alloy prepared by utilizing positive mixed heat between elements and its preparation method and application

A nanocrystalline alloy and iron-based amorphous technology, which is applied in the direction of electrical components, magnetic objects, magnetic materials, etc., can solve the problems of complex preparation process and thin thickness of iron-based amorphous nanocrystalline alloy, and achieve simple and high-efficiency preparation process. Effect of saturation magnetization and cost reduction

Active Publication Date: 2022-01-11
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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  • An iron-based amorphous nanocrystalline alloy prepared by utilizing positive mixed heat between elements and its preparation method and application
  • An iron-based amorphous nanocrystalline alloy prepared by utilizing positive mixed heat between elements and its preparation method and application
  • An iron-based amorphous nanocrystalline alloy prepared by utilizing positive mixed heat between elements and its preparation method and application

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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 using positive mixing heat between elements. In the iron-based amorphous nanocrystalline alloy, Sn, Sb, Mg, and In which have positive mixing heat with Fe are added. , La, Ce, Ag, Bi elements, less element types, metal elements only contain Fe, metalloid elements only C and P, no B and Si, and no expensive elements such as Nb, the preparation process is simpler and the cost is reduced. Its preparation method can directly obtain the amorphous nanocrystalline alloy with α-Fe grains in the as-cast state by adding a small amount of positively mixed thermal elements, and has more excellent soft magnetic properties than all amorphous alloys. can. Compared with the existing preparation process of amorphous and nanocrystalline alloys, the present invention does not require vacuum or protective atmosphere annealing, which significantly reduces the complexity of the process, reduces the manufacturing cost, and at the same time avoids the brittleness caused by annealing. The manufacture brings convenience.

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 Patents(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