Ultrasonic testing of austenitic welds and its dependency on the welding process

Morteza Tabatabaeipour, Farhang Honarvar

Research output: Contribution to conferencePaperpeer-review


This paper describes the ultrasonic testing of austenitic welds prepared by two different welding processes. The tests were carried out by the ultrasonic Time-of-Flight Diffraction (ToFD) technique. Shielded Metal Arc Welding (SMAW) and Gas Tungsten Arc Welding (GTAW) are the welding processes used for preparing the specimens. Identical artificial defects were implanted in both welds during the welding process. Both specimens were examined by the ToFD technique under similar conditions. Metallographic images were also obtained from the cross sectional plane of both the SMA and GTA welds. These images show that the grain orientation in the two welded specimens are different. D-scan images obtained by the ToFD technique from these welds indicates that inspecting the specimens prepared by the SMAW process is easier than the one made by the GTAW process. The results also show that the D-scan images cannot reveal the small vertical drilled holes implanted in the specimens
Original languageEnglish
Publication statusPublished (in print/issue) - 21 Jul 2009
EventMalaysia International NDT Conference and Exhibition - Kuala Lumpur, Malaysia
Duration: 20 Jul 200921 Jul 2009


ConferenceMalaysia International NDT Conference and Exhibition
CityKuala Lumpur
Internet address


  • ultrasonic
  • NDT
  • TOFD
  • weld inspection
  • signal processing


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