Tensile Deformation and Recrystallization in Aluminum Bicrystal Having Symmetric 90.DEG. Tilt Grain Boundary

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  • Ikeda Atsushi
    Department of Mechanical Engineering, Faculty of Engineering, The University of Tokushima
  • Wada Tetsuya
    Department of Mechanical Engineering, Faculty of Engineering, The University of Tokushima
  • Tagami Minoru
    Department of Mechanical Engineering, Faculty of Engineering, The University of Tokushima
  • Okada Tatsuya
    Department of Mechanical Engineering, Faculty of Engineering, The University of Tokushima
  • Inoko Fukuji
    Department of Mechanical Engineering, Faculty of Engineering, The University of Tokushima

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Other Title
  • ９０°対称傾角粒界を有するアルミニウム双結晶の引張変形と再結晶
  • 90ド タイショウケイカク リュウカイ オ ユウスル アルミニウムソウケッショウ ノ ヒッパリ ヘンケイ ト サイケッショウ
  • Tensile Deformation and Recrystallization in Aluminum Bicrystal Having Symmetric 90° Tilt Grain Boundary

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Description

  An aluminum bicrystal having a symmetric 90° tilt grain boundary was tensile-deformed at room temperature and subsequently annealed. In the component grains of the bicrystal, two slip systems with almost the same Schmid factor were activated on the primary slip plane. The grains were rotated in the opposite directions, which resulted in the decrease in the tilt angle by 20°. Two different types of deformation bands, i.e. band of secondary slip and kink band were formed in the grains. The deformation was not symmetric about the grain boundary. Recrystallization occurred through strain induced boundary migration predominantly from one of the grains towards the other.<br>

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