From Solid-Solution Strengthening to Grain Boundary Segregation: A Study on the Mechanism of Magnetic Property Evolution in Ni-Doped Fe-5.5Si Soft Magnetic Composites.

Xianjin Lan, Jiangyifan Wang, Ligang Liu, Yuanlin Xu, Chaojie Yang, Min Zhang

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Article in Micromachines, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

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6 authors.

Xianjin LanSchool of Physics and Astronomy, China West Normal University, Nanchong 637002, China.

Jiangyifan WangSchool of Physics and Astronomy, China West Normal University, Nanchong 637002, China.

Ligang LiuSchool of Physics and Astronomy, China West Normal University, Nanchong 637002, China.ORCID 0009-0004-9169-9757

Yuanlin XuSichuan Dongge Technology Co., Ltd., Nanchong 637676, China.

Chaojie YangSichuan Dongge Technology Co., Ltd., Nanchong 637676, China.

Min ZhangSchool of Physics and Astronomy, China West Normal University, Nanchong 637002, China.ORCID 0000-0002-9118-0603

Funding

China West Normal University No. KCXTD2024-4

6 · The paper itself

Abstract

This study systematically investigates the effects of varying Ni doping levels (1.0-7.0 wt.%) on the microstructure, static magnetic properties, and high-frequency dynamic magnetic performance of Fe-5.5 wt.% Si soft magnetic composites (SMCs). Toroidal core samples were fabricated using powder metallurgy combined with silicone resin coating and high-temperature annealing. The influence of Ni doping on phase composition, morphology, saturation magnetization, coercivity, effective permeability, quality factor, total core loss and its components, and DC bias characteristics was comprehensively evaluated by XRD, SEM, EDS, hysteresis loop testing, and DC bias measurements. The results indicate that an appropriate Ni content (3.0-5.0 wt.%) promotes the formation of α-Fe(Si,Ni) solid solution and (Fe,Ni)

Indexed as

Cr dopingFe-Si alloyhigh-frequency propertiesinterface engineeringNi dopingsoft magnetic composites (SMCs)

Identifiers

PMID42513063

DOI10.3390/mi17070852

PMCPMC13413774

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