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MM: Fachverband Metall- und Materialphysik
MM 20: Topical Session: Thermophysical Properties of Bulk Metallic Glasses and Bulk Metallic Glass-forming Liquids
MM 20.2: Vortrag
Mittwoch, 19. März 2025, 16:15–16:30, H10
Advancements in Developing Fe-Based Metallic Glasses for Additive Manufacturing of Soft Magnetic Components — •Amirhossein Ghavimi1, Maryam Rahimi Chegeni1, Purbasha Sharangi2, Uma Rajput2, Gabriele Barrera2, Enzo Ferrara2, Paola Tiberto2, Isabella Gallino3, and Ralf Busch1 — 1Saarland University, Chair of Metallic Materials, Campus C6.3, 66123 Saarbrücken, Germany — 2INRIM, Strade delle Cacce 91, Torino, Italy — 3Department of Materials Science and Engineering, Metallic Materials, TU-Berlin, Ernst-Reuter-Platz 1, 10587 Berlin, Germany
This research aims to create suitable Fe-based soft-magnetic amorphous alloys for the 3D printing of motor components. Since a fully amorphous structure of the 3D-printed parts is expected to improve motor efficiency, i.e. increase magnetic softness and decrease energy losses, the glass-forming ability (GFA) is enhanced through the judicious change of the alloy chemical composition while maintaining competitive soft magnetic properties. The GFA of the compositions was studied by evaluating the critical casting thickness (dc) of the samples. Subsequently, XRD, DSC and DTA were used to characterize the structure and thermal behavior of the samples. The magnetic properties were determined by means of VSM in addition to the evaluation of losses. The eutectic zone of the Fe-Si-B system was experimentally determined. Evaluation of quaternary and quinary component alloys involved studying the effects of promising elements such as phosphorous and nickel on GFA and magnetic properties.
Keywords: Metallic glasses; Amorphous materials; Soft magnetic; Additive manufacturing; Iron based alloys