Metallographic and magnetic analysis of direct laser sintered soft magnetic composites

•First to produce layered toroidal Fe-Si samples by metal 3D printing.•Developed a new powder dispenser for our commercially available 3D printer.•Interlayer diffusion causes poor magnetic properties. In this present study, soft magnetic composite samples were made from iron-silicon alloys. For the...

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Bibliographic Details
Published in:Journal of magnetism and magnetic materials 2020-05, Vol.501, p.166425, Article 166425
Main Authors: Kocsis, B., Fekete, I., Varga, L.K.
Format: Article
Language:English
Subjects:
Complex permeability spectra
Computed tomography
Direct metal laser sintering
Ferrous alloys
Iron-silicon alloys
Laser sintering
Layered structure
Magnetic permeability
Magnetic properties
Metal 3D printing
Soft magnetic composites
Three dimensional printing
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Summary:•First to produce layered toroidal Fe-Si samples by metal 3D printing.•Developed a new powder dispenser for our commercially available 3D printer.•Interlayer diffusion causes poor magnetic properties. In this present study, soft magnetic composite samples were made from iron-silicon alloys. For the purpose of optimizing 3D printing parameters, preliminary experiments were performed. Metallographic and computed tomography investigations were used to determine the appropriate sintering settings. Besides the microscopic and CT analysis, considering the permeability spectra have been compared to the samples.
ISSN:0304-8853
1873-4766
DOI:10.1016/j.jmmm.2020.166425