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

R Saha, RK Ray - Materials Science and Engineering: A, 2010 - Elsevier
Materials Science and Engineering: A, 2010Elsevier
A boron added interstitial free steel was cold rolled (CR) 90% and 98%, followed by batch
annealing for different lengths of time at 650° 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 …
A boron added interstitial free steel was cold rolled (CR) 90% and 98%, followed by batch annealing for different lengths of time at 650°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 {554} 〈225〉 and {111} 〈123〉 orientations (for the 98% cold rolled material) and with {113} 〈471〉 and {223} 〈692〉 orientations (for the 90% cold rolled material) was observed after recrystallization. The Σ11 and the Σ13b CSL boundaries appeared to be involved in this process.
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