Kink Band Formation and Its Effect on Recrystallization in Ordered and Disordered Ni<SUB>3</SUB>Fe Single Crystals

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  • Okada Tatsuya
    Department of Mechanical Engineering, Faculty of Engineering, The University of Tokushima
  • Yasuda Hiroyuki Y.
    Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University Research Center for Ultra-High Voltage Electron Microscopy, Osaka University
  • Watanabe Tetsuya
    Department of Mechanical Engineering, Faculty of Engineering, The University of Tokushima
  • Inoko Fukuji
    Emeritus Professor, The University of Tokushima
  • Umakoshi Yukichi
    Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University

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  • Kink band formation and its effect on recrystallization in ordered and disordered Ni3Fe single crystal

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Description

In order to study the influence of ordering on deformation and recrystallization, Ni3Fe single crystals, ordered and disordered by appropriate heat treatments, were deformed in tension at room temperature and subsequently annealed at temperatures above the order-disorder transformation temperature. Both ordered and disordered single crystals exhibited a large elongation, while deformation microstructures were totally different. Kink bands formed only in the disordered single crystals. Recrystallization occurred along the kink bands. Many recrystallized grains had ⟨111⟩-rotation relationships with the kink band and were twin related to each other. In contrast, no recrystallized grain formed in the single crystal deformed in the ordered state.

Journal

  • MATERIALS TRANSACTIONS

    MATERIALS TRANSACTIONS 48 (4), 759-763, 2007

    The Japan Institute of Metals and Materials

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