Characterization of LPBF Produced Fe2.9wt.%Si for Electromagnetic Actuator
Michele Quercio, Francesco Galbusera, Emir Pošković, Fausto Franchini, Luca Ferraris, Aldo Canova, Giambattista Gruosso, Ali Gökhan Demir, Barbara Previtali
Abstract
This study aims to produce Fe2.9wt.%Si ferromagnetic material via laser powder bed fusion (L-PBF) for the realization of electromagnetic actuators (EMA). This study is necessary as there are no documents in scientific literature regarding the manufacturing of Iron-Silicon plungers using the L-PBF additive manufacturing (AM) technique. The microstructure, and magnetic properties were characterized using various techniques. The results indicate that the samples produced via L-PBF process exhibit good magnetic properties (μ = 748, <italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">H<sub>C</sub></i> = 87.7[ <italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">A/m</i> ]) especially after annealing treatment at 1200° C for 1h (μ = 3224, <italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">H<sub>C</sub></i> = 69.1[ <italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">A/m</i> ]), making it a promising material for use in electromagnetic actuators.