Analysis of the microstructure, texture and magnetic properties of strip casting 4.5 wt.% Si non-oriented electrical steel

• 4.5 wt.% Si non-oriented electrical steel was produced by twin-roll casting method.
• The microstructure, texture and magnetic properties were systematically studied.
• Unusual sharp {411} < 148 > texture was obtained after final annealing.
• The new non-oriented electrical steel has a high magnetic induction and low iron loss.

The microstructure, texture and magnetic properties of 4.5 wt.% Si electrical steel fabricated by the processes of twin-roll casting, warm-rolling and final annealing were systematically investigated with the aim of introducing a remarkable and promising electrical steel with extensive potential applications. The results show that unusually sharp {411} < 148 > texture is obtained in addition to common Cube, rotated Cube, Goss and {111} < 112 > orientation after final annealing. Excellent magnetic inductions of 1.518 T (B8) and 1.703 T (B50), and iron losses of 24.92 W/kg (W10/400) and 24.47 W/kg (W5/1000) have been achieved.