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The effect of hot band annealing processes,namely simulating batch annealing and continuous annealing,on microstructure,texture,grain boundary character and r-value of ferritic stainless steel was investigated.The hot band displayed a highly elongated ribbon-like structure and a pronounced deformation texture.The fully recrystallized grains were observed after continuous annealing while the “typical” hot rolled structure was remained after batch annealing.Also,the α-fibre texture formed during hot rolling almost disappeared after continuous annealing and a weak γ-fibre texture was obtained.By contract,the α-fibre texture remained very stable after batch annealing.After cold rolling and recrystallization annealing,the favorable γ-fibre texture was achieved in the continuous annealed steel.Instead of forming the γ-fibre texture,the recrystallization texture was notably shifted toward {223}<582> in the batch annealed steel.Finally,the improvement in drawability with high r-value and low Δr-value were also displayed in sheet through the initial continuous annealing process.
The effect of hot band annealing processes, are simulating batch annealing and continuous annealing, on microstructure, texture, grain boundary character and r-value of ferritic stainless steel was investigated. The hot band displayed a highly elongated ribbon-like structure and a pronounced deformation texture.The fully recrystallized grains were observed after continuous annealing while the “typical ” hot rolled structure was remained after batch annealing. Also, the alpha-fibre texture formed during hot rolling almost disappeared after continuous annealing and a weak gamma-fiber texture was obtained.By contract, the α-fiber texture remains very stable after batch annealing. After cold rolling and recrystallization annealing, the favorable γ-fiber texture was achieved in the continuous annealed steel. Instead of forming the γ-fibre texture, the recrystallization the texture was notably shifted toward {223} <582> in the batch annealed steel. Finally, the improvement in drawability with high r-value an d low Δr-value were also displayed in the sheet through the initial continuous annealing process.