Development of λ-fiber recrystallization texture and magnetic property in Fe–6.5wt% Si thin sheet produced by strip casting and warm rolling method

Effects of rolling temperature on microstructure, texture, formability and magnetic properties in strip casting Fe-6.5 wt% Si non-oriented electrical steel

“…It was clearly observed that the in-grain shear bands could act as the dominate nucleation sites for {001}〈210〉, cube, {410}〈001〉 and {115}〈5-10 1〉recrystallized grains, though the grain boundary regions of the deformed λ-grains could also act as the nucleation sites for a few recrystallized grains with abovementioned orientations. It was confirmed that these recrystallized nuclei have an evident advantage in size and number over γ-recrystallized grains through the whole recrystallization stage and finally developed to constitute the dominant recrystallization texture [17,20,30], as shown in Fig. 8a-c.…”

“…On the one hand, it can create extremely fine solidification microstructure owing to its relatively high cooling rate. On the other hand, it can generate desired microstructure and texture in the initial as-cast sheet [9][10][11][12][13][14], which has an influence on the evolution of microstructure and texture during rolling and annealing and the final properties [15][16][17][18][19][20][21][22]. Thus, it may be a new promising low-cost and compact way to produce 6.5 wt% silicon steel sheet by means of strip casting and rolling method.…”

Effect of texture and grain size on the magnetic flux density and core loss of cold-rolled high silicon steel sheets

“…Although the magnetic anisotropy of high-silicon steel is lower than that of 3%Si steel (i.e., the magnetic anisotropy constant K 1 of 6.5%Si-Fe is lower than 3%Si-Fe by about 40%) and the saturation magnetic flux density B s of 6.5%Si-Fe is 1.80 T while that of 3%Si-Fe is 2.03 T, the magnetic flux density of high-silicon steel may still be improved by optimizing its texture [19,20]. Compared with 3% silicon steel, high-silicon steel presents advantages of lower core loss at high frequencies.…”

Microstructure, Texture Evolution and Magnetic Properties of Fe-6.5 wt. % Si and Fe-6.5 wt. % Si-0.5 wt. % Cu Alloys during Rolling and Annealing Treatment

“…It is known that magnetization is hardest in the <111> direction but easiest in the <001> direction of iron crystals [22][23][24]. Thus, the η fiber (<001> parallel to the rolling direction) and the λ fiber (<001> parallel to the normal direction) are beneficial for magnetic induction, while the γ fiber (<111> parallel to the normal direction) is the least favorable for magnetic induction.…”