Solidification structure and crystallographic texture of strip casting 3wt.% Si non-oriented silicon steel

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

“…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.…”

Microstructure, texture and magnetic properties of strip-cast 1.3% Si non-oriented electrical steels

“…Casting parameters, including pouring temperature, casting speed and roll gap, have an obvious influence on the solidification structure [6,10,11]. In this study, the melt superheat controlled by changing pouring temperature is the only variable.…”

“…The occurrence of fine grains could be attributed to strong cooling capability of the rollers and short station time during secondary cooling which inhibits the growth of new transformed ferrite grain. In the studies of Liu [6,11], completely columnar structure could be obtained in 3% Si non-oriented electrical steel and Cr17 ferritic stainless as-cast strip when melt superheat was at 55 1C and 140 1C. However, the 1.3% Si as-cast strip with 60 1C melt superheat was characterized by equiaxed grains structure.…”

“…The twin-roll strip casting, which eliminates the continuous casting and hot rolling in the traditional technology for producing nonoriented silicon steels, can supply a steel strip directly with the same thickness as those of hot-rolled ones for use in cold rolling, is a new advanced and energy-efficient technology [4,5]. Many experimental investigations [6][7][8][9] on strip-casting 3-6% Si electrical steel have been reported, the focus of which are the characterization of the texture and solidification structure of the as-cast strips. However, the evolution of microstructure, texture and magnetic properties according to different initial grain sizes and solidification structures of as-cast strips is as yet unclear.…”

Characterization of precipitates in strip-cast 2.7%Si steel under different heat treatment conditions

“…The common precipitates in conventional production process of electrical steel have been studied by Jenkins [3] and Alcantara [4] et al In recent years, many researchers are interested in the fabrication of silicon steel by strip casting technology because of its near-net-shape casting and technical advantage. Liu [5] studied the microstructure and texture of as-cast silicon steel strip and the relative factors. In addition, Sha [6] reported the microstructural origin of strong cube recrystallization texture in non-oriented silicon steel prepared by strip casting.…”