磁気飽和渦流探傷法による配管腐食検査(発電プラントにおける非破壊検査と保守,発電プラントにおける非破壊検査と保守)
スポンサーリンク
概要
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Eddy current testing with magnetic saturation was investigated to detect and evaluate corrosion in ferromagnetic steel piping. Advantages of the technique shown as follows were obtained through this investigation. (1) Local corrosion can be detected with high detectability. (2) Testing speed is much higher comparing with any other NDT methods such as ultrasonic testing (UT). (3) Inner and outer flaw can be identified using analysis of signal phase in specific frequency. (4) Mapping of corrosion distribution can be displayed with probe scanning.
- 2004-09-04