Effect of Si Concentration on Secondary Recrystallization of Grain Oriented Electrical Steel Produced by Single Stage Cold Rolling Process

A study has been made on the effect of the Si concentration on the secondary recrystallization of the grain oriented electrical steel produced by the single stage cold rolling process by use of MnS and AlN as inhibitors.(1) In case of the Si increase from 3.0 to 3.3 mass%, the secondary recrystallization temperature is shifted to higher under constant heating rate. In case of the Si increase to 3.7 mass%, no secondary recrystallization occurs.(2) The phenomena mensioned above are supposed to owe to the less intensity of (110) oriented primary grains and the larger primary grain size and the less effective inhibitors in case of the increased Si concentration.