Non-destructive characterization of hydrogen concentration in Zircalloy

Che Hua Yang*, Ming Fong Huang

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

3 Scopus citations


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 languageEnglish
Pages (from-to)89-95
Number of pages7
JournalKey Engineering Materials
Issue numberI
StatePublished - 2004
EventProceedings of the 11th Asian Pacific Conference on Nondestructive Testing - Jeju Island, Korea, Republic of
Duration: 03 11 200307 11 2003


  • Acoustic Microscope
  • Hydrogen Embrittlement
  • PVDF
  • Ultrasound
  • Zircaloy


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