日本機械学会論文集B編
Online ISSN : 1884-8346
ノート
マイクロ波によるNi基合金溶接部表面の応力腐食割れの非破壊評価
天野 智文巨 陽細井 厚志
著者情報
ジャーナル フリー

2011 年 77 巻 776 号 p. 959-963

詳細
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 μm. 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.

著者関連情報
© 2011 一般社団法人 日本機械学会
前の記事 次の記事
feedback
Top