Effect of Initial Orientation on the Cold Rolling Behavior of Solidified Columnar Crystals in a 19% Cr Ferritic Stainless Steel

Nobuhiro Tsuji, Kaneaki Tsuzaki, Tadashi Maki

Research output: Contribution to journalArticle

56 Citations (Scopus)

Abstract

The cold rolling behavior of solidified columnar crystals in a 19%Cr ferritic stainless steel has been investigated in order to clarify the effects of the initial orientation of each columnar grain and of the interaction with adjacent grains in a polycrystalline specimen. The specimen showed {001}≪uv0≫ texture before rolling and {001}[110] texture after 70% rolling reduction. It was clearly shown that the rolled microstructure and the crystal rotation by rolling strongly depend on the initial orientation. The 70% rolled microstructure of (001) [100] oriented grains consisted of a large number of fine stringer deformation bands, whereas (001)[110] oriented grains showed a uniform and non-characteristic deformation structure. In the grains having intermediate orientations such as (001)[510]-[320], stringer deformation bands formed near grain boundaries. Both of the (001) [100] and (001) [110] oriented grains maintained their initial orientations even after 70% rolling reduction, while the (001)[510]-[320] oriented grains rotated toward (001) [110]. It was emphasized that the stability of (001)[100] oriented grains against rolling is contrast to the case of (001) [100] oriented bcc single crystals where the crystal rotation toward (001) (110) occurs. This difference was discussed from a viewpoint of the interaction with adjacent grains.

Original languageEnglish
Pages (from-to)1319-1328
Number of pages10
Journalisij international
Volume32
Issue number12
DOIs
Publication statusPublished - Jan 1 1992
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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