Effect of Primary Recrystallized Texture on the Behavior of Secondary Recrystallization in 3% Silicon Steel

Abstract

Primary recrystallized textures of 3% silicon steel sheets cold-rolled to various directions and subsequently decarburized were analyzed by three dimensional crystalline orientation distribution function. Orientation, size and incubation period of secondary recrystallized grains were observed after final secondary recrystallization annealing. They were compared with the orientation distribution of primary recrystallized grains having a peak orientation near {110}〈001〉 and {111}〈112〉, the latter of which is a main component in the primary recrystallized texture. The behaviour of secondary recrystallization was discussed with special reference to the shapes of orientation distribution curves of primary recrystallized grains. The grain size, orientation distribution and other characters of secondary recrystallization are found to have a close correlation with the two primary recrystallization texture components, {110}〈001〉 and {111}〈112〉. This correlation was successfully explained in terms of some coincidence relations concentrated near 35° about the 〈110〉 axis.