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

摘要

In 0.1 mm thick 3 percent Si-Fe strips containing 0.1 percent manganese and 0.011 percent sulfur, the preannealed strips were composed of {110} grains after final annealing at 1200 deg 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.