Tensile deformation behavior of Fe-Mn-C TWIP steel with ultrafine elongated grain structure

Taekyung Lee, Motomichi Koyama, Kaneaki Tsuzaki, You Hwan Lee, Chong Soo Lee

研究成果: ジャーナルへの寄稿学術誌査読

69 被引用数 (Scopus)

抄録

An Fe-17Mn-0.6C steel with ultrafine elongated grain structure was successfully produced utilizing a multi-pass caliber-rolling process at 773 K. The uniform elongation of the developed steel was not severely degraded although its strength was greatly enhanced, leading to superior tensile properties. The result contrasted with most ultrafine-grained metals, including C-free TWIP steels, reporting the critical loss of uniform elongation. The peculiar phenomenon in the present work was attributed to the high work hardening capacity of C-added TWIP steels with the submicrocrystalline structure caused by dynamic strain aging, deformation twinning, and formation of stacking faults even after strong grain refinement.

本文言語英語
ページ(範囲)169-171
ページ数3
ジャーナルMaterials Letters
75
DOI
出版ステータス出版済み - 5月 15 2012
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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