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Method for regulating and controlling amorphous alloy microstructure

A technology of amorphous alloy and microstructure, which is applied in the field of amorphous alloy microstructure and regulation of amorphous alloy microstructure

Active Publication Date: 2019-08-06
JIANGSU JICUI ANTAI CHUANGMING ADVANCED ENERGY MATERIALS RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] It can be seen that at present, there is a lack of a method in this field to achieve the purpose of regulating the microstructure of iron-based amorphous alloys and nanocrystalline amorphous precursor alloys by adjusting the process without changing the composition and equipment.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] In Example 1, the size of the clusters and the content of the dominant clusters are reduced by increasing the heat treatment temperature of the alloy melt (mode 1), and the size and content of the dominant clusters of the obtained amorphous alloy are reduced.

[0051] Will Fe 78 Si 9 B 13 The alloy melt was subjected to isothermal heat treatment at 1400 °C for 1 h. Afterwards, the alloy melt temperature was 1360° C. and then cast onto a cooling copper roll (the average temperature of the cooling water used to cool the copper roll was 35° C.) to prepare a 26 μm alloy strip. The average cluster size of the obtained alloy strip is 1.0 nm, and the volume fraction of the dominant cluster is 38%.

[0052] Will Fe 78 Si 9 B 13 The alloy melt was subjected to isothermal heat treatment at 1480 °C for 1 h. Other processes are the same as the previous process. The average cluster size of the obtained alloy strip is 0.85nm, and the volume fraction of the dominant cluster is...

Embodiment 2

[0054] In Example 2, the size of the clusters and the content of the dominant clusters are reduced by increasing the isothermal heat treatment time of the alloy melt (mode 2), and the size and content of the obtained dominant clusters are reduced.

[0055] Will Fe 73.5 Cu 1 Nb 3 Si 13.5 B 9 The alloy melt was subjected to isothermal heat treatment at 1400°C for 3h. The other processes are the same as those after isothermal heat treatment at 1400° C. for 1 h in Example 1. The average cluster size of the obtained alloy strip is 0.9nm, and the volume fraction of the dominant cluster is 43%.

[0056] Will Fe 73.5 Cu 1 Nb 3 Si 13.5 B 9 The alloy melt was subjected to isothermal heat treatment at 1400°C for 5h. The other processes are the same as those after isothermal heat treatment at 1400° C. for 1 h in Example 1. The average cluster size of the obtained alloy strip is 0.8nm, and the volume fraction of the dominant cluster is 35%.

[0057] Compared with the alloy str...

Embodiment 3

[0058] Embodiment 3 By increasing the temperature of the heat treatment of the alloy melt (mode one), reducing the temperature of the alloy melt when casting the melt on the cooling copper roll (mode three), reducing the temperature of the amorphous alloy / nanocrystalline amorphous precursor alloy The thickness of the prepared strip (mode 5) is used to reduce the cluster size of the alloy, and the size and content of the obtained dominant clusters are reduced

[0059] Will Fe 78 Si 9 B 13 The alloy melt was heat-treated at 1420°C for 1 hour, then the temperature of the alloy melt was lowered to 1400°C and then cast onto a cooling copper roll (the average temperature of the cooling water used to cool the copper roll was 35°C) to prepare a 26 μm alloy strip material. The average cluster size of the obtained alloy strip is 1.0 nm, and the volume fraction of the dominant cluster is 36%.

[0060] Will Fe 78 Si 9 B 13 The alloy melt was heat-treated at 1480°C for 1 hour, and t...

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Abstract

The invention discloses a method for regulating and controlling an amorphous alloy microstructure. The method comprises any one or a combination of the following modes that (1), alloy melt heat treatment temperature in the preparation process of an amorphous alloy / a nanocrystalline amorphous precursor alloy is adjusted; (2), alloy melt heat treatment time in the preparation process of the amorphous alloy / the nanocrystalline amorphous precursor alloy is adjusted; (3), casting temperature of the alloy melt generated when the melt is cast to a cooling roller in the preparation process of the amorphous alloy / the nanocrystalline amorphous precursor alloy is adjusted; (4), temperature of cooling water in the preparation process of the amorphous alloy / the nanocrystalline amorphous precursor alloy is adjusted, and the cooling water is used for changing the cooling capacity of the cooling roller to the alloy melt; (5), the prepared strip thickness of the amorphous alloy / the nanocrystallineamorphous precursor alloy is adjusted; and (6), the amorphous alloy / the nanocrystalline amorphous precursor alloy in quenching state is subjected to low-temperature relaxation heat treatment. The method is high in efficiency, low in cost and high in controllability.

Description

technical field [0001] The invention relates to an amorphous alloy microstructure, in particular to a method for adjusting and controlling the amorphous alloy microstructure, and belongs to the technical field of material metallurgy. Background technique [0002] Iron-based amorphous and nanocrystalline alloys are used in power transmission and distribution, power electronics and other fields. They have a series of performance advantages such as high magnetic permeability, low loss, and low cost. They are typical "double green" for energy saving in preparation and application. "Energy saving materials. [0003] Since amorphous alloys are typical long-range disordered and short-range ordered structures, the order here refers to the cluster structure that exhibits certain similar characteristics to the crystal structure, and the clusters are connected by common points, lines, Surfaces are connected, as well as through the interpenetration of cluster structures. In amorphous ...

Claims

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Application Information

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IPC IPC(8): C22C45/02B22D11/06C21D1/00
CPCB22D11/06C21D1/00C21D2201/03C22C33/003C22C45/02
Inventor 董帮少周少雄王岩国邢彦兴李现涛
Owner JIANGSU JICUI ANTAI CHUANGMING ADVANCED ENERGY MATERIALS RES INST CO LTD
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