Texture and grain growth characteristics in a boron added interstitial free steel after severe cold rolling and annealing

A boron added interstitial free steel was cold rolled (CR) 90% and 98%, followed by batch annealing for different lengths of time at 650 degrees C. Crystallographic textures were determined for the cold rolled, partially recrystallized and the fully recrystallized materials. The overall texture of the 98% cold rolled sample was sharper than that of the 90% cold rolled material, though both showed the presence of the gamma and the alpha fibres. Recrystallization led to a decrease in the texture intensity of the 90% cold rolled steel, while reverse was the case for the 98% cold rolled material. The r bar value of the 98% cold rolled and recrystallized steel was only marginally less than that of its 90% counterpart. Selective growth of grains with {5 5 4} < 2 2 5 > and {1 1 1} < 1 2 3 > orientations (for the 98% cold rolled material) and with {1 1 3} < 4 7 1 > and {2 2 3} < 6 9 2 > orientations (for the 90% cold rolled material) was observed after recrystallization. The Sigma 11 and the Sigma 13b CSL boundaries appeared to be involved in this process. (C) 2009 Elsevier B.V. All rights reserved.