Effect of Heat Treatment Prior to Cold Rolling on the Recrystallization Texture in Iron-Carbon Single Crystals

Abstract

For the purpose of investigating the formation mechanism of recrystallization texture, the effects of carbon and its existing state on cold rolled and recrystallization texture were studied in iron-0.02% carbon single crystals.
The results obtained are described as follows.
In crystals with the initial orientation of (001) [110], fine carbides markedly retarded the recrystallization.
In crystals with the initial orientation of (110) [001], the cold rolled textures are {111} <112> and the recrystallization textures are {110} <001> irrespective of the variation in the existing state of carbon.
In crystals with the initial orientation of (111) [110], cold rolled textures are retained in the initial orientation, and recrystallization textures are composed of two orientations {111} and near {110}. The near {110} recrystallization texture was formed by the preferential recrystallization at the region of {112} <111> slip system operated during cold rolling. Solute carbon increased the {110} recrystallization texture and fine carbide suppressed the recrystallization of {100} grains.
The formation mechanism of recrystallization textures in low carbon steels was discussed, based on the obtained results.