Abstract
An ultrasound nondestructive (NDE) technique is used to characterize hydrogen concentration (HC) in Zircaloy tubes. This ultrasound-based NDE technique employs a low-frequency PVDF/LFB transducer operated in a z-scan mode to obtain the dispersion relation of guided acoustic waves propagation in the Zircaloy tubes. A Fourier-based signal processing technique is used to obtain the dispersion curves. With this ultrasound technique, the determined dispersion relations are used to determine the HC in Zircaloy tubes with a resolution better than 300 ppm.
| Original language | English |
|---|---|
| Pages (from-to) | 89-95 |
| Number of pages | 7 |
| Journal | Key Engineering Materials |
| Volume | 270-273 |
| Issue number | I |
| State | Published - 2004 |
| Event | Proceedings of the 11th Asian Pacific Conference on Nondestructive Testing - Jeju Island, Korea, Republic of Duration: 03 11 2003 → 07 11 2003 |
Keywords
- Acoustic Microscope
- Hydrogen Embrittlement
- PVDF
- Ultrasound
- Zircaloy