TY - JOUR
T1 - Influence of α-region hot rolling on the rolling and recrystallization texture of cold rolled Ti-bearing extra low carbon steel sheets
AU - Senuma, Takehide
AU - Saitoh, Hajime
AU - Ushioda, Kousaku
AU - Yoshinaga, Naoki
AU - Yada, Hiroshi
PY - 1990/4/1
Y1 - 1990/4/1
N2 - Recent development in the automobile industry requires higher and higher formability of steel sheets. With the aim of improving the deep drawability, the influence of α-region hot rolling on the texture and γ-values of cold rolled Ti-containing extralow carbon steel sheets has been investigated. In the case of steel sheets hot rolled in the α-region, recrystallization textures in the midlayer of the cold rolled and annealed sheets show, regardless of the crystallized or nonrecrystallized state before cold rolling, a higher ND//〈111〉 intensity, whose development is favorable for deep drawability, than that of conventional cold rolled sheets. If hot rolled sheets have a deformed microstructure, ND//〈111〉 in the surface texture after final annealing does not develop and the main orientation is near {113} 〈110〉 ±15, while ND//〈111〉 in the surface recrystallization texture of the cold-rolled and annealed sheets increases with increasing cold rolling reduction if a recrystallization treatment is carried after α-region hot rolling, although the scale of the increase is less than in conventional cold-rolled sheets.
AB - Recent development in the automobile industry requires higher and higher formability of steel sheets. With the aim of improving the deep drawability, the influence of α-region hot rolling on the texture and γ-values of cold rolled Ti-containing extralow carbon steel sheets has been investigated. In the case of steel sheets hot rolled in the α-region, recrystallization textures in the midlayer of the cold rolled and annealed sheets show, regardless of the crystallized or nonrecrystallized state before cold rolling, a higher ND//〈111〉 intensity, whose development is favorable for deep drawability, than that of conventional cold rolled sheets. If hot rolled sheets have a deformed microstructure, ND//〈111〉 in the surface texture after final annealing does not develop and the main orientation is near {113} 〈110〉 ±15, while ND//〈111〉 in the surface recrystallization texture of the cold-rolled and annealed sheets increases with increasing cold rolling reduction if a recrystallization treatment is carried after α-region hot rolling, although the scale of the increase is less than in conventional cold-rolled sheets.
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M3 - Article
AN - SCOPUS:0025417466
VL - 54
SP - 403
EP - 412
JO - Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
JF - Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
SN - 0021-4876
IS - 4
ER -