Calorimetric study and microstructure analysis of the order-disorder phase transformation in silicon steel built by SLM

Properties of Additively Manufactured Electric Steel Powder Cores with Increased Si Content

“…Within this, the FeSi steels with Si content between 2 wt.% and 7 wt.%, together with an appropriate electrical resistivity [ 10 ], guarantee excellent electromagnetic proprieties [ 11 ]: for this reason, they are widely used in the ferromagnetic cores of electrical motors, generators, electrical transformers, etc. [ 12 ].…”

“…It is well known that FeSi steel with 6.5 wt.% Si offers the best soft magnetic proprieties [ 15 , 16 ] such as: high magnetic saturation, low magneto-crystalline anisotropy, low magnetostriction, and, above all, high electrical resistivity [ 12 , 17 , 18 ]. However, commercially, steels with Si content below 3.5–4.0 wt.% are usually preferred [ 19 ].…”

“…It is known that the dislocations movement within an ordered structure forms antiphase boundaries [ 26 , 27 ] with a consequent increase in hardness and of brittleness [ 26 ]. This strongly reduces the ductility of the material and limits the workability at low temperatures [ 12 ]. Moreover, the formability of FeSi alloys also depends on the control of the twinning and therefore on the speed of the plastic deformation process [ 28 ].…”

Additive Manufacturing and Testing of a Soft Magnetic Rotor for a Switched Reluctance Motor

“…After cooling, a solid metal, near fully dense (ref) part is consequently created and the extremely rapid melting/cooling process leads to a fine grain microstructure [9]. Only recently, LPBF has found application in the processing of electrically conductive [10,11] and soft magnetic materials [12][13][14][15][16][17] potentially enabling the demand for high performance lightweight EMs. In literature, several examples of EM components fabricated via LPBF process can be found, although comprehensive analyses, accounting for the experimental comparison between 3D printed and conventionally manufactured EMs, are difficult to find.…”

Controllable mesostructure, magnetic properties of soft magnetic Fe-Ni-Si by using selective laser melting from nickel coated high silicon steel powder

“…could be an efficient net-shaped process for the high-silicon steel. Recently, Garibaldi et al [16][17][18] have investigated the SLM processed high silicon steel and indicated that this process could be one of the promising methods to manufacture the soft magnetic component with complex morphology. Additionally, Zhang et al [19] did the parametrical analysis with the SLM processed Fe-Ni alloys for obtaining high relative density component.…”