Influence of α-region hot rolling on the rolling and recrystallization texture of cold rolled Ti-bearing extra low carbon steel sheets

Takehide Senuma, Hajime Saitoh, Kousaku Ushioda, Naoki Yoshinaga, Hiroshi Yada

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)403-412
Number of pages10
JournalNippon Kinzoku Gakkai-si
Volume54
Issue number4
Publication statusPublished - Apr 1 1990
Externally publishedYes

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys
  • Materials Chemistry

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