Characterization of ordering in Fe-6.5%Si alloy using X-ray, TEM, and magnetic TGA methods

Abstract

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Characterization of the Fe-6.5wt%Si Strip with Rapid Cooling Coupling Deep Supercooled Solidification

“…The magnetic properties of the Fe-6.5wt%Si arc melting and steel strip samples with rpm values of 30–46 m/s are also determined by the vibrating sample magnetometer equipment. The hysteresis loops are shown in Figure a–f, which indicates that the arc melting and steel strip samples also belong to the typical soft ferromagnetic material . The magnetic properties of saturation magnetization (Ms), saturation remanence (Mr), and coercive force (Hc) are calculated based on the data in Figure , as shown in Figure .…”

“…The hysteresis loops are shown in Figure 10a−f, which indicates that the arc melting and steel strip samples also belong to the typical soft ferromagnetic material. 25 The magnetic properties of saturation magnetization (Ms), saturation remanence (Mr), and coercive force (Hc) are calculated based on the data in Figure 10, as shown in Figure 11.…”

“…The dynamic and thermodynamic processes of nucleation generation, crystal growth, and crystal structure transformation always depend on the degree of undercooling and temperature gradient significantly. Meanwhile, deep supercooled rapid solidification (rpm from 30 to 50 m/s) also has a great effect on the process of mineral formation/transition and the stability of the crystal structure, as shown in Figure . The space group and lattice parameters of the cell at different rotating speeds correspond to the standard phase.…”

Effects of Solidification Cooling Rates on Microstructures and Physical Properties of Fe-6.5%Si Alloys

“…While keeping all the other process parameters the same, various wheel speeds were chosen, i.e., 1 m/s, 3 m/s, 5 m/s, 7 m/s, 10 m/s, 20 m/s and 30 m/s. The cooling rates of the samples were analyzed using a thermal camera (FLIR A8303sc) [16]. The 6mm wide continuous ribbon/tape used for closed loop magnetic property measurements was prepared using a quartz crucible with 1×4 mm slotted nozzle.…”

“…The cooling rate decreases monotonically with decreasing wheel speeds, from 8×10 5 K/s at 30 m/s to 3.6×10 4 K/s at 3 m/s. A full analysis of cooling rate at each wheel speed has been reported earlier [16]. Figure 1 shows the images of the ribbons prepared by the melt spinning method.…”