The effects of varying carbon content on the secondary recrystallization in high permeability 3% Si-steel have been investigated ; Three different carbon content of 0.004 w/o, 0.074 w/o and 0.098 w/o have been selected in the study.
The mean grain sizes of both hot rolled and primary recrystallized condition were observed to be decrease as carbon content increased. The reduction in grain size can be related to the increased amount of austenite at the final hot rolling temperature (930℃). The amount of austenite increases as carbon content increase in Fe-Si-C system.
Carbon had no great effect on the final cold rolled texture behavior. However increased carbon content enhanced the development of (110) texture during primary recrystallization.
Poor secondary recrystallization occurred when carbon content was low, but complete secondary recrystallization occurred when carbon content was high after final annealing. This result was described in terms of primary grain size and (110) nuclei for secondary recrystallization during the decarburization anneal.
