Effect of preannealing on final texture and magnetic induction in thin-gauged 3% Si–Fe strips containing 0.1% Mn and 0.011% S

Abstract

In 0.1mm thick 3% Si–Fe strips containing 0.1% manganese and 0.011% sulfur, the preannealed strips were composed of {110} grains after final annealing at 1200°C, while the other strips without preannealing consisted of {100} or {111} grains. This is due to the difference in surface-energy-induced selective growth kinetics in which the main governing factor is probably by the primary grain size. In the preannealed strip with a higher final reduction, the relatively smaller grain size effect produced the decrease in total number of the {110} grains and thus the sharper {110}⟨001⟩ final texture favorable for the higher magnetic induction.