Microstructure and magnetic domain structure of additively manufactured Fe–Si soft magnetic alloys with 3 and 9 wt.-% Si

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dc.date.accessioned2024-10-25T09:04:12Z
dc.date.available2024-10-25T09:04:12Z
dc.date.issued2024-01-28
dc.description.sponsorshipFunded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) - TRR 173/2–268565370 Spin + X (Project B08).ger
dc.identifierdoi:10.17170/kobra-2024102410993
dc.identifier.urihttp://hdl.handle.net/123456789/16113
dc.language.isoeng
dc.relation.doidoi:10.1016/j.jmrt.2024.01.229
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectadditive manufacturingeng
dc.subjectlaser-based powder bed fusion (PBF-LB)eng
dc.subjectelectrical steeleng
dc.subjectmagnetic domain structure (MDS)eng
dc.subject.ddc600
dc.subject.swdRapid Prototyping <Fertigung>ger
dc.subject.swdSelektives Laserschmelzenger
dc.subject.swdElektroblechger
dc.subject.swdWeißscher Bezirkger
dc.subject.swdMikrostrukturger
dc.titleMicrostructure and magnetic domain structure of additively manufactured Fe–Si soft magnetic alloys with 3 and 9 wt.-% Sieng
dc.typeAufsatz
dc.type.versionpublishedVersion
dcterms.abstractElectrical steels are numerously used in engineering applications. Nowadays, future challenges related to climate change and e-mobility push the boundaries to higher efficiency also in electrical parts. A promising material group to reduce electrical losses are electrical steels with high silicon contents. However, such steels are difficult to process with conventional methods and, thus, additive manufacturing came into focus in recent years. The present study investigates the processability, crack sensitivity, microstructure evolution and magnetic domain structures of laser powder bed fused Fe–Si alloys with 3 and 9 wt.-% Si. It is shown that specimens, which are built using appropriate process parameters, are dense and free of cracks. Still, Fe–9Si is characterized by a higher crack susceptibility at low temperatures of the build platform. A checkerboard like microstructure with elongated grains alongside build direction evolved. Global magnetic properties from ring core measurements showed lower losses for the Fe–9Si ring. Moreover, it was found that the magnetic domain structures are directly influenced by the crystallographic orientations present in the specimen volumes. The findings elaborated will contribute to advanced possibilities in tailoring the magnetic properties of electrical steels for an increase of the efficiency of envisaged applications.eng
dcterms.accessRightsopen access
dcterms.creatorBackes, Constanze
dcterms.creatorKahlert, Moritz
dcterms.creatorVollmer, Malte
dcterms.creatorSmaga, Marek
dcterms.creatorNiendorf, Thomas
dcterms.creatorBeck, Tilmann
dcterms.source.identifiereissn:2214-0697
dcterms.source.journalJournal of Materials Research and Technologyeng
dcterms.source.pageinfo1691-1702
dcterms.source.volumeVolume 29
kup.iskupfalse

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