Microscale Texture and Recrystallized Orientations of Coarse Grained 3% Si-steel Rolled at High Temperature

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著者

    • OZAKI Yoshihiro
    • Stainless Steel Laboratory, Technical Research Laboratories, Kawasaki Steel Corporation
    • MURAKI Mineo
    • Electrical Steel Laboratory, Technical Research Laboratories, Kawasaki Steel Corporation
    • OBARA Takashi
    • Research Planning & Administration Department, Technical Research Laboratories, Kawasaki Steel Corporation

抄録

Recovered and recrystallized crystal orientations of a coarse grained 3% Si-steel hot rolled at 1280°C were examined. Deformed samples exhibited a recovered structure comprised of subgrains. Recrystallized grains with unique orientations emerged along the original grain boundaries during holding at the rolling temperature for 6.5 s. With the aid of the automated EBSD orientation measurement with two dimensional scan, it became possible to map the orientations of the subgrains which were the minimum units of orientation in the present case. Near the original grain boundary, to an extent of several hundreds of microns, the orientation of the subgrains were scattered or continuously rotated due to the constraint by the grain boundary. The orientations of a number of the subgrains near the original grain boundaries in the deformed sample were measured, and the subgrains having large misorientation with the matrix, which were thought recrystallization nuclei, were found. The recrystallized grains in the sample held for 6.5 s at 1280°C, as well as both the recrystallization nuclei and the continuously rotated subgrains near the original grain boundaries in the immediately quenched specimen, often showed a rotational relationship around an <110> axis on ND plane with the deformed matrices.

収録刊行物

  • ISIJ international  

    ISIJ international 38(6), 531-538, 1998-06-15 

    The Iron and Steel Institute of Japan

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