The effect of heat treatments and Si contents on B2 ordering reaction in high-silicon steels

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

“…To avoid mechanical processing, high-silicon steel sheets and ribbons are produced by other methods, such as chemical vapor deposition (CVD) [1,4,5], hot dipping [6], spray forming [7], and rapid solidification [8]. However, researchers have found that ordering may be avoided by using an appropriate thermomechanical procedure [9,10] and suppression of the ordering reaction by controlling the cooling rate after annealing [11][12][13]. In recent years, the toughness and ductility of high-silicon steel have been improved through the principles of deformationinduced softening and annealing-induced hardening in ordered solid solutions [14].…”

Effect of static magnetic field on microstructure and interdiffusion behavior of Fe/Fe–Si alloy diffusion couple

“…At present the mass production of the 6.5 wt.%Si steel sheets by cold rolling is almost impossible due to the presence of different ordered phases like B2 (FeSi) and D0 3 (Fe 3 Si), and manufacture even by hot rolling becomes difficult when the Si content exceeds 4 wt.% [14]. To solve the problem about the strong brittle characteristic of the 6.5 wt.% silicon steels, many kinds of methods such as chemical vapor deposition, powder metallurgy and composite electro-deposition have been considered [15,10].…”

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

“…High-silicon non-oriented electrical steel sheet containing 6.5 wt% Si is an ideal core material with excellent soft magnetic properties such as high permeability and saturation magnetization, almost zero magnetostriction, low eddy current and hysteresis losses especially at high frequencies [2]. However, it is very hard to produce 6.5 wt% Si steel thin sheet by using the conventional thick slab casting, hot rolling and cold rolling processes due to its extremely limited ductility and formability at room temperature as a result of the occurrence of ordering phases [3,4]. In fact, the commercial scale production of 6.5 wt% Si steel sheet has been only successfully developed by the NKK Corp by using a chemical vapor deposition (CVD) process [5].…”