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Soft magnetic feconibcp high-entropy amorphous alloy and preparation method thereof

An amorphous alloy and high-entropy technology, which is applied in the field of high-entropy amorphous alloy materials and its preparation, can solve the problems of low content, low saturation magnetic induction, and low coercive force, and achieve high saturation magnetic induction and low coercive force force, good thermal stability

Active Publication Date: 2021-07-27
TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Recently, the magnetic properties of high-entropy alloys and high-entropy amorphous alloys, especially soft magnetic properties, have begun to receive attention: Zhang et al. from Dalian University of Technology prepared a series of Fe 25 co 25 Ni 25 (B,C,Si,P) 25 High-entropy amorphous alloys with soft magnetic properties [Journal of Alloys and Compounds, 2017, 693 (25-31); Intermetallics, 2015, 66 (8-12); Journal of Non-Crystalline Solids, 2018, 487 (60- 64)], with low coercive force (0.8-6.4A / m), but due to the relatively low content of ferromagnetic elements Fe, Co, Ni (75% atomic percentage), the saturation magnetic induction is low ( 0.71-0.87T)

Method used

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  • Soft magnetic feconibcp high-entropy amorphous alloy and preparation method thereof
  • Soft magnetic feconibcp high-entropy amorphous alloy and preparation method thereof
  • Soft magnetic feconibcp high-entropy amorphous alloy and preparation method thereof

Examples

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Embodiment 1-12

[0027] Embodiment 1-12: Preparation Fe 40 co 20 Ni 20 (B,C,P) 20 High entropy amorphous alloy

[0028] The components of the designed high-entropy alloy are: Fe 40 co 20 Ni 20 C 7 P 13 (Example 1), Fe 40 co 20 Ni 20 C 10 P 10 (Example 2), Fe 40 co 20 Ni 20 B 3 C 7 P 10 (Example 3), Fe 40 co 20 Ni 20 B 5 C 5 P 10 (Example 4), Fe 40 co 20 Ni 20 B 5 C 7 P 8 (Example 5), Fe 40 co 20 Ni 20 B 7 C 3 P 10 (Example 6), Fe 40 co 20 Ni 20 B 7 C 5 P 8 (Example 7), Fe 40 co 20 Ni 20 B 7 C 7 P 6 (Example 8), Fe 40 co 20 Ni 20 B 9 C 1 P 10 (Example 9), Fe 40 co 20 Ni 20 B 9 C 3 P8 (Example 10), Fe 40 co 20 Ni 20 B 9 C 5 P 6 (Example 11), Fe 40 co 20 Ni 20 B 9 C 7 P 4 (Example 12), the alloy composition is shown in Table 1. Examples 1-12 First, the ingredients are prepared according to the chemical composition ratio, and then the induction melting furnace is used. After vacuuming, the protective gas is filled, and then the...

Embodiment 13-14

[0037] Example 13-14: Preparation of Fe 31 co 20 Ni 30 B 6 C 3 P 10 and Fe 44 co 18 Ni 18 B 7 C 3 P 10 High entropy amorphous alloy

[0038] The high-entropy alloy composition Fe was designed 31 co 20 Ni 30 B 6 C 3 P 10 (Example 13) and Fe 44 co 18 Ni 18 B 7 C 3 P 10 (Example 14). And according to the chemical composition distribution ratio, the induction melting furnace is used to fill the protective gas after vacuuming, and then the prepared raw materials are smelted several times to ensure the uniform composition, and finally the master alloy ingot is obtained. The master alloy ingot is crushed. The crushed small master alloy block was melted, and then high-entropy amorphous alloy strips were prepared by single-roll spin quenching method. The high entropy amorphous alloy strip is heat treated in a heat treatment furnace. Wherein, the heat treatment time is about 15 minutes, and the heat treatment temperature is about 400°C.

[0039] The magnetic p...

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Abstract

The invention discloses a FeCoNiBCP high-entropy amorphous alloy with soft magnetic properties, the atomic percentage composition of which is Fe a co b Ni c B d C e P f , among them, 30<a≤45, 10≤b≤25, 15≤c≤30, 0≤d≤20, 0

Description

technical field [0001] The invention belongs to the technical field of high-entropy amorphous alloy materials and preparation thereof, in particular to FeCoNiBCP high-entropy amorphous alloy with soft magnetic properties and a preparation method thereof. Background technique [0002] Unlike traditional crystalline alloys, amorphous alloys are long-range disordered alloys. Therefore, amorphous alloys have some excellent properties that crystalline alloys do not have. Among them, the soft magnetic properties of amorphous alloys were first reported in 1967, and immediately attracted great attention from scientific research and industry, and became one of the hotspots of soft magnetic materials research for decades. [0003] For amorphous alloys with soft magnetic properties, because the atoms are arranged in disorder, there is no grain boundary to hinder the movement of the magnetic domain wall, so that it has a small coercive force, so the hysteresis loss is small; at the sam...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C45/02C22C1/02C22C33/04C22C45/00C22F1/00C21D6/00H01F1/153
CPCH01F1/15308H01F1/15341C21D6/001C21D6/007C22C1/02C22C33/003C22C33/04C22C45/008C22C45/02C22F1/00C21D2201/03C22C1/11
Inventor 姚可夫施凌翔邵洋范子宜贾蓟丽
Owner TSINGHUA UNIV