About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
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| Symposium
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Additive Manufacturing: Materials Design and Alloy Development VII – Design With Multi-Modal and Field Data by Integrating Uncertainty
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| Presentation Title |
Development of soft magnetic material, FeSi3.5, by direct energy deposition with enhanced magnetic properties |
| Author(s) |
Jeongwoo Lee, Akanksha Parmar, Yung C. Shin |
| On-Site Speaker (Planned) |
Yung C. Shin |
| Abstract Scope |
This study presents a novel manufacturing method of large-scale, soft magnetic FeSi3.5 samples with enhanced magnetic properties, devoid of defects, through the application of direct energy deposition (DED). The effects of different manufacturing process parameters on grain morphology were systematically investigated. A large volume ratio (68.3 %) of Goss texture was formed at as-printed stage with the grain direction of ~33° toward the building direction. The volume ratio of Goss texture was increased to 82.7 % after post-heat treatment at 1050 °C for 2 hours. The maximum relative permeability of 10710 achieved after post-heat treatment at 1050 °C for 2 hours is comparable to commercially available FeSi steel made by the traditional manufacturing method. The magnetic performance results indicate potential improvement of magnetic properties with further optimized grain structure and elevated post-heat treatment temperature. DED-printed FeSi showed higher microhardness and yield strength compared to FeSi3.5 from conventional manufacturing methods. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Magnetic Materials, Iron and Steel |