Advances in High Magnetic Induction and Low Loss Fe‐Based Nanocrystalline Alloys

ABSTRACT Fe‐based nanocrystalline alloys exhibit outstanding research value and extensive application prospects, owing to their remarkable attributes such as high saturation magnetic induction intensity ( B s ), low coercivity ( H c ), high magnetic permeability ( μ ), and low loss ( P ). These alloys are of pivotal significance in enhancing the performance of high‐capacity and high‐efficiency power electronic devices. In recent years, a multitude of scholars have delved into extensive research on Fe‐based nanocrystalline alloys, with particular emphasis on the control strategies for their glass forming ability (GFA) and soft magnetic properties. This article commences by delineating the formation mechanism and preparation procedures of Fe‐based nanocrystalline alloys, thereby laying a theoretical and scientific groundwork for the evolution of alloy compositions characterised by high thermal stability and robust GFA. Subsequently, predicated on the prevailing primary Fe‐based nanocrystalline alloy composition systems, it encapsulates the most recent advancements in the development of these systems, structural evolution, performance modulation, and microalloying technology. Finally, it dissects the challenges and prospective research trajectories of Fe‐based nanocrystalline alloys as the next‐generation soft magnetic functional materials.