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    STP824

    Texture Effect of Zircaloy on Ultrasonic Velocity

    Published: 0


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    Abstract

    The effect of crystallographic texture and heat treatment of Zircaloy on ultrasonic velocity was investigated by using specimens obtained from a Zircaloy plate and cladding tubes fabricated by different schedules covering a wide range of Q-values.

    The theoretical ultrasonic velocity in polycrystalline zirconium was also calculated. The results are as follows:

    1. The crystallographic texture has a significant effect on ultrasonic velocity. Ultrasonic velocity increases by 1% almost linearly with each increase of 0.1 in the f-factor in the range above f=0.3.

    2. Heat treatment has little effect on ultrasonic velocity, and the difference of ultrasonic velocity between as-rolled and recrystallized tubes was 0.3%.

    3. The ultrasonic velocity in polycrystalline zirconium calculated by using pole figure data shows fairly good agreement with experimental data.

    Keywords:

    Zircaloy, zirconium alloys, annealing, texture, ultrasonic velocity, anisotropy, pole figure


    Author Information:

    Konishi, T
    Senior staff manager, Metallurgical and Process Control Department, and assistant manager, Precision Tube Making Plant, Steel Tube Works, Sumitomo Metal Industries, Ltd., Amagasaki, Hyogo,

    Honji, M
    Senior staff manager, Metallurgical and Process Control Department, and assistant manager, Precision Tube Making Plant, Steel Tube Works, Sumitomo Metal Industries, Ltd., Amagasaki, Hyogo,


    Committee/Subcommittee: B10.02

    DOI: 10.1520/STP34475S