Static softening following multistage hot deformation of 7150 aluminum alloy: Experiment and modeling

Fulin Jiang, Hatem S. Zurob, Gary R. Purdy, Hui Zhang

研究成果: ジャーナルへの寄稿学術誌査読

29 被引用数 (Scopus)

抄録

Previous studies have demonstrated that the static softening kinetics of 7150 aluminum alloy showed typical sigmoidal behavior at 400. °C and softening plateaus at 300. °C (F.L. Jiang, et al., Mater. Sci. Eng. A, vol. 552, 2012, pp. 269-275). In present work, the static softening mechanisms, the microstructural evolution during post-deformation holding was studied by optical microscopy, scanning electron microscope, electron back-scattered diffraction and transmission electron microscopy. It was demonstrated that recrystallization is essentially absent during post-deformation holding, and that static recovery was the main contribution to static softening. Strain induced precipitation and coarsening caused softening plateaus at 300. °C. In order to better understand the static softening mechanism, physically-based modeling, which integrated recovery and multicomponent particle coarsening modeling, was employed to rationalize the experimental results.

本文言語英語
ページ(範囲)164-177
ページ数14
ジャーナルMaterials Science and Engineering: A
648
DOI
出版ステータス出版済み - 11月 11 2015
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • 材料科学一般
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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