Abstract
Effects of heat treatments of hot rolled bands prior to cold rolling on the recrystallization texture and planar anisotropy of γ value have been investigated for 0.04°C-0.2°Ti steel sheets. The steels were hot rolled to the bands with slab heating temperature of 1000°C and 1250°C. The bands were heat treated at 600°C-1000°C for 1 hr, then 75% cold rolled and annealed.
The heat treatments affected the preferred orientation of recrystallized texture and planar anisotropy of γ value, depending on the heating temperature of hot rolling. It seemed that the intensities of {110}‹001›, {100}‹01›, and {211}‹011› components of recrystallized steel sheets contributed to the planar anisotropy. Electron microscopic studies revealed that the size and distribution of TiC fine particles in the bands prior to cold rolling were markedly affected by the heat treatment as well as the heating temperature of hot rolling. It was suggested that these fine particles had an important effect on the development of the recrystallization texture.
