鋼材の残留応力による超音波の屈折について

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書誌事項

タイトル別名
  • Ultrasonic Refraction by Residual Stress in Steel. (On the Attenuation of Ultrasonic Waves in Steel by Residual Stress (5th Report))
  • コウザイ ノ ザンリュウ オウリョク ニ ヨル チョウオンパ ノ クッセツ ニ ツイテ

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抄録

The ultrasonic refraction phenomena by residual stress in 150φ×447 mm steel bars were studied by reflection method using a pulsed wave. The specimens used were quenched in water from 650° and 850°C. The changes of sound velocity were also examined by tensile and compression tests. The oresults btained were as follows:— (1) The time required for the reflection between both the ends of a quenched 150φ steel bar is different at every point on the radius. It shows the change of sound velocity by residual stress. (2) The transmission does not correspond to the receive points in quenched steel bar and the sound waves are propagated by refraction to the side of tensile stress. (3) The velocity of ultrasonic waves decrease with the stress in tensile test and increase in compression test.

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 23 (2), 108-112, 1959

    公益社団法人 日本金属学会

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