|About this Abstract
||2022 TMS Annual Meeting & Exhibition
||Additive Manufacturing and Innovative Powder Processing of Functional and Magnetic Materials
||NOW ON-DEMAND ONLY - X-ray and Neutron Scattering Reveals Insights into the Formation and Thermal Stability of Metastable Disordered Phases in FeCo and FeSi
||Chris Fancher, Andrew Kustas
|On-Site Speaker (Planned)
Fe-Co and Fe-Si alloys are ubiquitous soft-magnetic materials in applications due to their superior properties. Compositions with optimal magnetic and electrical properties suffer from poor ductility that prohibits their use in commercial deformation processing. Metal additive manufacturing (AM) shows promise as an alternative method for producing bulk components using challenging to process materials. Researchers have demonstrated the viability of directed energy deposition and laser powder bed fusion methods for fabricating Fe-Co and Fe-Si. The printability of these brittle materials was attributed to the stabilization of the high-temperature disordered BCC structure. Despite these promising results, there remains a notable knowledge gap in the process-structure-mechanical relationships at the atomic scale for AM processed Fe-Co and FeSi alloys. In this paper, diffraction and small-angle scattering was utilized to determine the effect of AM process parameters on forming a metastable BCC phase and subsequent thermal stability with heating.
||Additive Manufacturing, Characterization, Magnetic Materials