Significance of intermediate thermo-mechanical treatments for formation of cube texture in high purity aluminum foils.

DOI Web Site 14 Citations 17 References
  • KAMIJO Taichi
    Department of Mechanical Engineering and Material Science, Faculty of Engineering, Yokohama National University
  • SEKI Fumie
    Department of Materials Science, University of Tokyo
  • TAMAI Hiroki
    Department of Mechanical Engineering and Material Science, Faculty of Engineering, Yokohama National University
  • ITO Kunio
    Department of Industrial Engineering and Management, Nihon University

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  • 立方体集合組織を有する高純度アルミニウム箔の製造における中間加工熱処理の意義
  • リッポウタイ シュウゴウ ソシキ オ ユウスル コウジュンド アルミニウム ハク ノ セイゾウ ニ オケル チュウカン カコウ ネツ ショリ ノ イギ

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Abstract

Annealing textures of 3N (35 ppm Fe) and 4N (7 ppm Fe) aluminum foils for electrolytic condenser produced by intermediate annealing-light rolling processes were examined. The aim is to clarify (1) mechanisms of difficulty of cube texture formation in 3N foils as well as in thinner foils, (2) dependence of suitable intermediate annealing temperature on iron contents, and (3) significance of intermediate thermo-mechanical treatments and effect of pre-annealing on the cube texture formation. It has been elucidated that the significance of intermediate thermo-mechanical treatments should be pursued to the following nature of the development of cube texture; the development in thin foils depends distinctly on the nucleation process and the primary recrystallization grain size distribution of cube and R components which are extensively affected by the iron content less than 0.01 mass%.

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