A study was conducted to assess the ability of advanced ultrasonic techniques to detect and accurately determine the size of flaws from the far-side of wrought austenitic piping welds. Far-side inspections of nuclear system austenitic piping welds are currently performed on a “best effort” basis and do not conform to ASME Code Section XI Appendix VIII performance demonstration requirements for near side inspection. For this study, four circumferential welds in 610mm (24inch) diameter, 36mm (1.42inch) thick ASTM A-358, Grade 304 vintage austenitic stainless steel pipe were examined. The welds were fabricated with varied welding parameters; both horizontal and vertical pipe orientations were used, with air and water backing, to simulate field welding conditions. A series of saw cuts, electro-discharge machined (EDM) notches, and implanted fatigue cracks were placed into the heat affected zones of the welds. The saw cuts and notches ranged in depth from 7.5% to 28.4% through-wall. The implanted cracks ranged in depth from 5% through-wall to 64% through-wall. The welds were examined with phased array technology at 2.0 MHz, and compared to conventional ultrasonic techniques as a baseline. The examinations showed that phased-array methods were able to detect and accurately length-size, but not depth size, the notches and flaws through the welds. The ultrasonic results were insensitive to the different welding techniques used in each weld.
Skip Nav Destination
ASME 2006 Pressure Vessels and Piping/ICPVT-11 Conference
July 23–27, 2006
Vancouver, BC, Canada
Conference Sponsors:
- Pressure Vessels and Piping Division
ISBN:
0-7918-4756-X
PROCEEDINGS PAPER
Capabilities of Ultrasonic Phased Arrays for Far-Side Examinations of Austenitic Stainless Steel Piping Welds Available to Purchase
Michael T. Anderson,
Michael T. Anderson
Pacific Northwest National Laboratory, Richland, WA
Search for other works by this author on:
Stephen E. Cumblidge,
Stephen E. Cumblidge
Pacific Northwest National Laboratory, Richland, WA
Search for other works by this author on:
Steven R. Doctor
Steven R. Doctor
Pacific Northwest National Laboratory, Richland, WA
Search for other works by this author on:
Michael T. Anderson
Pacific Northwest National Laboratory, Richland, WA
Stephen E. Cumblidge
Pacific Northwest National Laboratory, Richland, WA
Steven R. Doctor
Pacific Northwest National Laboratory, Richland, WA
Paper No:
PVP2006-ICPVT-11-93385, pp. 215-221; 7 pages
Published Online:
July 23, 2008
Citation
Anderson, MT, Cumblidge, SE, & Doctor, SR. "Capabilities of Ultrasonic Phased Arrays for Far-Side Examinations of Austenitic Stainless Steel Piping Welds." Proceedings of the ASME 2006 Pressure Vessels and Piping/ICPVT-11 Conference. Volume 5: High Pressure Technology, Nondestructive Evaluation, Pipeline Systems, Student Paper Competition. Vancouver, BC, Canada. July 23–27, 2006. pp. 215-221. ASME. https://doi.org/10.1115/PVP2006-ICPVT-11-93385
Download citation file:
7
Views
Related Proceedings Papers
Related Articles
Metallurgical Failure Analysis of a Rotating Blade in the Compressor Section of a Gas Turbine
J. Pressure Vessel Technol (November,2006)
Microstructure and Fatigue Property of Ti–6Al–4V by Ultrahigh Frequency Pulse Welding
J. Manuf. Sci. Eng (April,2017)
Eddy Current Examination of Fatigue Cracks in Inconel Welds
J. Pressure Vessel Technol (February,2007)
Related Chapters
Development of Nuclear Boiler and Pressure Vessels in Taiwan
Companion Guide to the ASME Boiler and Pressure Vessel Code, Volume 3, Third Edition
Part 2, Section II—Materials and Specifications
Companion Guide to the ASME Boiler & Pressure Vessel Code, Volume 1, Second Edition
Part 2, Section II—Materials and Specifications
Companion Guide to the ASME Boiler and Pressure Vessel Code, Volume 1, Third Edition