|About this Abstract
||2022 TMS Annual Meeting & Exhibition
||Late News Poster Session
||F-41: From Long-term Aging to Rapid Annealing – The Heat Treatment Optimization of Melt-spun Fe81Ni4Cu1B14 Alloy. Crystal Structure and Magnetic Properties Evolution
||Lukasz Hawelek, Tymon Warski, Marcin Polak, Adam Pilsniak, Magdalena Steczkowska-Kempka, Anna Wojcik, Aleksandra Kolano-Burian
|On-Site Speaker (Planned)
In this work, the annealing process of the amorphous melt-spun Fe81Ni4Cu1B14 alloy has been optimized in the wide range of heat treatment time (from seconds to tens of hours) and temperatures to find the best magnetic properties (the lowest value of the core power losses and the highest saturation induction). The magnetic properties (saturation induction, coercivity, core power losses and complex magnetic permeability) have been investigated on the wound toroidal cores and then correlated with crystal structure evolution studied via X-ray diffraction method and transmission electron microscopy observations. This holistic approach allowed determining optimal parameters of the heat treatment process in a wide range of time and temperature, enabling the continuous combination of different types of heat treatment (long-term aging, classical annealing and rapid annealing).
||Magnetic Materials, Characterization, Other