Ultrasonic evaluation of welding residual stresses in stainless steel pressure vessel

Yashar Javadi, Hamed Salimi Pirzaman, Mohammadreza Hadizadeh Raeisi, Mehdi Ahmadi Najafabadi

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Abstract

This paper investigates ultrasonic method in stress measurement of a pressure vessel made of austenitic stainless steel 304 L. Longitudinal critically refracted (LCR) waves are employed to measure the welding residual stresses. The acoustoelastic constant is measured through a hydro test while the pressure vessel is kept intact. Hole-drilling method is used to verify the results of ultrasonic measurement corresponding to axial and hoop residual stresses of the pressure vessel. The results show good agreement between hole-drilling and ultrasonic stress measurements which is accomplished nondestructively.

Original languageEnglish
Article number041502
Number of pages6
JournalJournal of Pressure Vessel Technology, Transactions of the ASME
Volume135
Issue number4
DOIs
Publication statusPublished - 11 Jun 2013

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Keywords

  • acoustoelastic constant
  • LCR waves
  • nondestructive stress measurement
  • pressure vessel
  • ultrasonic

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