CONTROL OF RECRYSTALLIZATION DURING HIGH-TEMPERATURE HOT-ROLLING OF GRAIN-ORIENTED SILICON STEEL

Recrystallization kinetics of 3% Si steel after hot rolling in the temperatures between 1373 and 1573 K, which is quite important to obtain uniform magnetic properties, was studied, Recrystallization rate after hot rolling was relatively slow because of low dislocation density, which resulted from rapid recovery, and its behavior was strongly influenced by the initial grain size and coexistence of the gamma phase. Based on these findings, controlling technology of recrystallization during hot rolling of grain-oriented Si steels is discussed.