Microstructure and texture evolution of strip casting grain-oriented silicon steel

A 0.23 mm-thick grain-oriented silicon steel sheet was successfully produced based on strip casting. The evolutions of microstructure and texture were briefly investigated. It was shown that the as-cast strip exhibited strong {001}<;0vw> texture. Goss texture was absent in the hot rolled strip, which was distinct from the well accepted results that Goss texture originated during hot rolling. After the cycle of first stage cold rolling, intermediate annealing, second stage cold rolling and primary annealing, the strip exhibited weak α-fiber texture and relatively strong γ-fiber texture. This result was significantly different from previous results that Goss texture was the most populous component in the primary recrystallization texture of two-stage route in conventional process. After secondary recrystalization annealing, the magnetic induction B₈ was as high as 1.84 T.