Cold Rolling Reduction Dependence of the Recrystallization Texture of 3% Si Non-oriented Electrical Steel

Abstract

The effect of the amount of cold reduction on the crystallographic texture, the microstructure, and the magnetic properties of cold rolled and annealed 3% Si non-oriented (NO) Si steel has been studied. The results indicate that, at constant final thickness, the combination of initial hot-rolled sheet thickness and the cold rolling reduction had a significant influence on the B50 magnetic flux density. The initial thickness of the hot-rolled sheet did not affect the crystallographic texture of the as-hot rolled sheet and the annealed hot-rolled sheet. At constant final thickness, the combination of a larger hot-rolled sheet thickness and a higher cold rolling reduction resulted in the decrease of the B50 magnetic flux density. This was due to an increase of the {411}<148> and {111}<112> texture components intensity and a decrease of the {110}<001> texture component intensity.