The impact of Cu content on crystallization kinetics and soft magnetic properties for ductility FePCCu amorphous alloy

IF 4.8 2区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Progress in Natural Science: Materials International Pub Date : 2025-06-01 DOI:10.1016/j.pnsc.2025.03.005

Xiangxiang Jiang , Cong Liu , Hongzhi Luo , Jing Ding , Mingqing Zuo , Chen Yang , Xuefang Dai , Shengli Zhu , Guodong Liu

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引用次数: 0

Abstract

Effects of trace addition of Cu in ductility Fe_83−xP₁₁C₆Cu_x (x = 0.7–1 at. %) amorphous alloys on the crystallization kinetics, soft magnetic properties and hardness were investigated. With Cu content increasing, the Curie temperature (T_c) and initial crystallization onset temperature (T_x1) increase at first and then drop. The nucleation process becomes hard with the increasing of Cu content, and it is more difficult than growth process. The Fe_82.3P₁₁C₆Cu_0.7 amorphous ribbon demonstrates high saturation magnetization (B_s) of 1.63 T, low coercivity (H_c) of 5.2 A/m, and high initial permeability (μ_i) of 15,000, alongside Vickers hardness (H_v) exceeding 760 and excellent bending ductility. Annealing-induced [amorphous + α-Fe] phase in Fe_82.3P₁₁C₆Cu_0.7 has good soft magnetic properties, with B_s of 1.66 T, H_c of 9.7 A/m, μ_i of 16,000, and H_v over 1300. Notably, only nanocrystalline α-Fe phase precipitation is observed in its ribbon after annealing at T_x2-50 K (T_x2, second crystallization onset temperature). At the same time the sample has good flexibility. Fe-based amorphous/nanocrystalline alloys can be as promising option for commercial applications because of their remarkable soft magnetic properties, cost-effectiveness, and exceptional bending ductility.

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Cu含量对延展性FePCCu非晶合金结晶动力学及软磁性能的影响

微量Cu对Fe83−xP11C6Cux （x = 0.7-1 at）塑性的影响研究了非晶合金的结晶动力学、软磁性能和硬度。随着Cu含量的增加，居里温度（Tc）和初始结晶起始温度（Tx1）先升高后降低。随着Cu含量的增加，成核过程变硬，比长大过程更困难。Fe82.3P11C6Cu0.7非晶带具有1.63 T的高饱和磁化强度（Bs）、5.2 A/m的低矫顽力（Hc）、1.5万μi的高初始磁导率、超过760的维氏硬度（Hv）和优异的弯曲延展性。Fe82.3P11C6Cu0.7中退火诱导的[非晶+ α-Fe]相具有良好的软磁性能，其Bs为1.66 T， Hc为9.7 A/m， μi为16000，Hv大于1300。值得注意的是，在Tx2-50 K （Tx2，第二次结晶起始温度）退火后，其带状中只析出纳米晶α-Fe相。同时样品具有良好的柔韧性。铁基非晶/纳米晶合金由于其优异的软磁性能、成本效益和优异的弯曲延展性，可以作为商业应用的有前途的选择。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Progress in Natural Science: Materials International 综合性期刊-综合性期刊

CiteScore

8.60

自引率

2.10%

发文量

2812

审稿时长

49 days

期刊介绍： Progress in Natural Science: Materials International provides scientists and engineers throughout the world with a central vehicle for the exchange and dissemination of basic theoretical studies and applied research of advanced materials. The emphasis is placed on original research, both analytical and experimental, which is of permanent interest to engineers and scientists, covering all aspects of new materials and technologies, such as, energy and environmental materials; advanced structural materials; advanced transportation materials, functional and electronic materials; nano-scale and amorphous materials; health and biological materials; materials modeling and simulation; materials characterization; and so on. The latest research achievements and innovative papers in basic theoretical studies and applied research of material science will be carefully selected and promptly reported. Thus, the aim of this Journal is to serve the global materials science and technology community with the latest research findings. As a service to readers, an international bibliography of recent publications in advanced materials is published bimonthly.