Berlin 2024 – wissenschaftliches Programm
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MM: Fachverband Metall- und Materialphysik
MM 16: Poster Ia
MM 16.10: Poster
Montag, 18. März 2024, 18:30–20:30, Poster E
PBF-LB of Soft Magnetic Fe-Based Metallic Glasses — •Felix Römer1, Florian Spieckermann1, Parthiban Ramasamy2, and Jürgen Eckert1,2 — 1Montanuniversität Leoben, Leoben, Austria — 2Erich Schmid Institute of Materials Science, Leoben, Austria
Reducing the energy losses is a key requirement in the development of soft magnetic materials.
In recent years, interest has focused on nanocrystalline soft magnetic alloys, whose magnetic properties benefit from their chemical and structural variations at the nanoscale. Unfortunately, the nanocrystalline Fe- BMG's suffers from extreme embrittlement. Thus, they must be annealed in the final core geometry and handled very carefully.
The possibility of additive manufacturing of metallic glasses has drawn a lot of attention. This technique provides high heating and cooling rates, making it suitable for producing metallic glass parts with dimensions much bigger than their critical casting diameter. Besides the high heating and cooling rates, the layer-by-layer construction of the part results in a complex heat treatment of the preceding layers. Understanding the behavior of metallic glasses under these high rates and complex treatment is the key to printing dense, crack-free parts with suitable magnetic properties.
In the current study we show the effects of double scanning and random line strategy as well as preheating of the building platform on the microstructure, crack formation and thermal properties of KUAMET6B2 Fe72.6Si11.3B10.9Cr2.2C3.0 (at%).
Keywords: Additive Manufacturing; Metallic Glasses; Microstructure; Thermal Properties