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Phased Array Ultrasonic Testing Saves Time, Increases Productivity

While radiography is a sensitive and highly reliable method of finding defects in welding and related applications, sometimes fabrication shops and field erectors are on tight schedules where a shutdown for a radiographic inspection can result in increased production costs or delayed deliveries. The same can be said about field erection of a bridge where a web or flange splice has been made, and the inspection must be done in a populated area or if time is of the essence. Phased array ultrasonic testing (PAUT) offers a safe alternative, with permanent record, that does not require production shutdowns. This article presents the benefits of PAUT for weldments as compared to radiography and conventional ultrasonic testing.

References

AIA, NAS 999, Rev. 1: Nondestructive Inspection of Advanced Composite Structures, Aerospace Industries Association – National Aerospace Standard, Arlington, Virginia, 2012. API, API 1104: Welding of Pipelines and Related Facilities, 20th edition, American Petroleum Institute, Washington, D.C., 2005. ASME, ASME Boiler and Pressure Vessel Code, Section V, Article 5, American Society of Mechanical Engineers, New York, New York, 2010. ASNT, ANSI/ASNT CP-105: ASNT Standard Topical Outlines for Qualification of Nondestructive Testing Personnel, American Society for Nondestructive Testing, Columbus, Ohio, 2011. ASNT, ANSI/ASNT CP-189: ASNT Standard for Qualification and Certification of Nondestructive Testing Personnel, American Society for Nondestructive Testing, Columbus, Ohio, 2011. AWS, D1.1 Structural Welding Code – Steel, Annex S, 22nd edition, American Welding Society, Miami, Florida, 2010. AWS, AASHTO/AWS D1.5M/D1.5 Bridge Welding Code, American Welding Society, Miami, Florida, 2002. NRC, Code of Federal Regulations Title 10, Part 34 – Licenses for Industrial Radiography and Radiation Safety Requirements for Industrial Radiographic Operations, Nuclear Regulatory Commission, Washington, D.C., 1991.

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