Order control engineering for balanced mechanical-magnetic properties in amorphous soft magnets

Xiao Liu; Rong-Ce Sun; Si-Yi Di; Xue-Song Li; Jing Zhou; Qiang Li; Bao-an Sun; Hai-bo Ke; Wei-hua Wang; Haiyang Bai

doi:10.1016/j.scriptamat.2025.117017

Order control engineering for balanced mechanical-magnetic properties in amorphous soft magnets

Xiao Liu (Co-first Author)
, Rong-Ce Sun (Co-first Author)
, Si-Yi Di
, Xue-Song Li
, Jing Zhou^*
, Qiang Li^*
, Bao-an Sun
, Hai-bo Ke
, Wei-hua Wang
, Haiyang Bai^*

^*Corresponding author for this work

Department of Mechanical Engineering

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

Abstract

Amorphous soft magnetic materials play pivotal roles in energy conversion, transmission, and storage for electronic devices. Emerging applications under high mechanical loads demand simultaneous optimization of mechanical properties. However, an inherent trade-off exists between achieving excellent soft magnetic performance and mechanical properties. Inspired by ultrafine dual-phase structural design, we propose a strategy utilizing composition fluctuations to construct Fe-rich and Fe-poor phases to construct tunable ultrafine dual-phase amorphous structures. By precise control of Fe-rich cluster structure ratio and inter-cluster spacing, we obtained an amorphous soft magnet with exceptional soft magnetic properties (B_s: 1.8T, H_c: 0.85Oe) alongside outstanding mechanical performance with negligible size effects, including a yield strength of 4.08 GPa (σ/E ≈ 0.03) and 50% homogeneous plastic deformation. This design paradigm, enabling concurrent ultrahigh strength, plasticity, and soft magnetism, opens avenues for demanding applications such as high-load micro-electromechanical systems systems and thin-film inductor materials. © 2025 Acta Materialia Inc.

Original language	English
Article number	117017
Number of pages	7
Journal	Scripta Materialia
Volume	271
Online published	29 Sept 2025
DOIs	https://doi.org/10.1016/j.scriptamat.2025.117017
Publication status	Published - 15 Jan 2026

Funding

This work was financially supported by National Natural Science Foundation of China (Project Nos: 52192600, 52192602, 62488201, 52471179, 52301210, 52261033), Guangdong Provincial Quantum Science Strategic Initiative (GDZX2402001), the National Key Research and Development Program of China (Grant No 2021YFA0716302), and the Excellent PhD Innovation Program of Xinjiang University (No. XJU2023BS029).

Research Keywords

Amorphous soft magnetic materials
Mechanical properties
Order control engineering
Ultrafine dual-phase amorphous

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title = "Order control engineering for balanced mechanical-magnetic properties in amorphous soft magnets",

abstract = "Amorphous soft magnetic materials play pivotal roles in energy conversion, transmission, and storage for electronic devices. Emerging applications under high mechanical loads demand simultaneous optimization of mechanical properties. However, an inherent trade-off exists between achieving excellent soft magnetic performance and mechanical properties. Inspired by ultrafine dual-phase structural design, we propose a strategy utilizing composition fluctuations to construct Fe-rich and Fe-poor phases to construct tunable ultrafine dual-phase amorphous structures. By precise control of Fe-rich cluster structure ratio and inter-cluster spacing, we obtained an amorphous soft magnet with exceptional soft magnetic properties (Bs : 1.8T, Hc : 0.85Oe) alongside outstanding mechanical performance with negligible size effects, including a yield strength of 4.08 GPa (σ/E ≈ 0.03) and 50\% homogeneous plastic deformation. This design paradigm, enabling concurrent ultrahigh strength, plasticity, and soft magnetism, opens avenues for demanding applications such as high-load micro-electromechanical systems systems and thin-film inductor materials. {\textcopyright} 2025 Acta Materialia Inc.",

keywords = "Amorphous soft magnetic materials, Mechanical properties, Order control engineering, Ultrafine dual-phase amorphous",

author = "Xiao Liu and Rong-Ce Sun and Si-Yi Di and Xue-Song Li and Jing Zhou and Qiang Li and Bao-an Sun and Hai-bo Ke and Wei-hua Wang and Haiyang Bai",

year = "2026",

month = jan,

day = "15",

doi = "10.1016/j.scriptamat.2025.117017",

language = "English",

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journal = "Scripta Materialia",

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TY - JOUR

T1 - Order control engineering for balanced mechanical-magnetic properties in amorphous soft magnets

AU - Liu, Xiao

AU - Sun, Rong-Ce

AU - Di, Si-Yi

AU - Li, Xue-Song

AU - Zhou, Jing

AU - Li, Qiang

AU - Sun, Bao-an

AU - Ke, Hai-bo

AU - Wang, Wei-hua

AU - Bai, Haiyang

PY - 2026/1/15

Y1 - 2026/1/15

N2 - Amorphous soft magnetic materials play pivotal roles in energy conversion, transmission, and storage for electronic devices. Emerging applications under high mechanical loads demand simultaneous optimization of mechanical properties. However, an inherent trade-off exists between achieving excellent soft magnetic performance and mechanical properties. Inspired by ultrafine dual-phase structural design, we propose a strategy utilizing composition fluctuations to construct Fe-rich and Fe-poor phases to construct tunable ultrafine dual-phase amorphous structures. By precise control of Fe-rich cluster structure ratio and inter-cluster spacing, we obtained an amorphous soft magnet with exceptional soft magnetic properties (Bs : 1.8T, Hc : 0.85Oe) alongside outstanding mechanical performance with negligible size effects, including a yield strength of 4.08 GPa (σ/E ≈ 0.03) and 50% homogeneous plastic deformation. This design paradigm, enabling concurrent ultrahigh strength, plasticity, and soft magnetism, opens avenues for demanding applications such as high-load micro-electromechanical systems systems and thin-film inductor materials. © 2025 Acta Materialia Inc.

AB - Amorphous soft magnetic materials play pivotal roles in energy conversion, transmission, and storage for electronic devices. Emerging applications under high mechanical loads demand simultaneous optimization of mechanical properties. However, an inherent trade-off exists between achieving excellent soft magnetic performance and mechanical properties. Inspired by ultrafine dual-phase structural design, we propose a strategy utilizing composition fluctuations to construct Fe-rich and Fe-poor phases to construct tunable ultrafine dual-phase amorphous structures. By precise control of Fe-rich cluster structure ratio and inter-cluster spacing, we obtained an amorphous soft magnet with exceptional soft magnetic properties (Bs : 1.8T, Hc : 0.85Oe) alongside outstanding mechanical performance with negligible size effects, including a yield strength of 4.08 GPa (σ/E ≈ 0.03) and 50% homogeneous plastic deformation. This design paradigm, enabling concurrent ultrahigh strength, plasticity, and soft magnetism, opens avenues for demanding applications such as high-load micro-electromechanical systems systems and thin-film inductor materials. © 2025 Acta Materialia Inc.

KW - Amorphous soft magnetic materials

KW - Mechanical properties

KW - Order control engineering

KW - Ultrafine dual-phase amorphous

UR - https://www.scopus.com/pages/publications/105017125049

UR - https://www.scopus.com/pages/publications/105017125049#tab=impact

U2 - 10.1016/j.scriptamat.2025.117017

DO - 10.1016/j.scriptamat.2025.117017

M3 - RGC 21 - Publication in refereed journal

SN - 1359-6462

VL - 271

JO - Scripta Materialia

JF - Scripta Materialia

M1 - 117017

ER -

Order control engineering for balanced mechanical-magnetic properties in amorphous soft magnets

Abstract

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Research Keywords

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