Nondestructive evaluation of SCC on the surface of Ni-base alloy by microwaves

Tomofumi Amano*, Yang Ju, Atsushi Hosoi

*この研究の対応する著者

研究成果: Article査読

抄録

To detect stress corrosion cracking (SCC) and evaluate its depth on the surface of Ni-base alloys, a microwave microscope was employed. An open-ended coaxial line sensor was used to increase the spatial resolution. The working frequency was 110 GHz and the standoff distance between the sensor and the sample was 60 |jm. The shape of SCC was obtained by microwave imaging. By measuring the amplitude of reflection coefficient, detection of SCC was achieved. To evaluate SCC depth, the attenuation constant of microwave in the crack was decided by comparing the measured microwave signal with the depth of a reference SCC obtained by destructive testing. Finally, the distribution of the depth of another SCC was evaluated by the proposed equation with the obtained attenuation constant.

本文言語English
ページ(範囲)959-963
ページ数5
ジャーナルNihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
77
776
DOI
出版ステータスPublished - 2011
外部発表はい

ASJC Scopus subject areas

  • 凝縮系物理学
  • 機械工学

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