XCEL
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Phased Array Ultrasonic Testing (PAUT)

Advanced Inspection for Critical Asset Integrity

With universal applications, phased array ultrasonic testing (PAUT) is key for detecting and evaluating damages in welds, forgings, pipelines, and more. From erosion and corrosion mapping to detecting environmentally induced damage, PAUT addresses a wide range of operational challenges with precision and efficiency.

Applications

Applications for Phased Array Ultrasonic Testing (PAUT) include:
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  • Weld evaluations for structural integrity.
  • Volumetric inspections for cast and forged materials.
  • Mapping areas affected by erosion and corrosion.
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Flaws that Phased Array can detect

Flaws that Phased Array can detect include:
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  • Weld flaws such as lack of fusion, slag inclusions, porosity, surface and/or embedded cracks, and incomplete penetration.
  • Erosion or corrosion – material loss, pitting, and root erosion.
  • Discontinuities in forged, rolled or cast materials such as laminations, forging bursts, cold shuts, hot tears and inclusions.
  • Environmentally or process-induced damage mechanisms such as Microbiologically-Influenced Corrosion (MIC), Hydrogen Induced Cracking (HIC), thermal or cyclic fatigue cracking, caustic cracking and stress corrosion cracking.
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Multiple benefits

There are a multitude of phased array benefits due to its universal capability to perform so many inspection tasks. Here are some advantages of Phased Array:
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  • Information can be displayed in multiple display formats (examples below), which aid in discontinuities/ flaw detection.
  • A-Scan displays the amount of received ultrasonic energy as a function of time.
  • B-Scan displays a profile view (cross-sectional) of a specimen.
  • C-Scan displays a plan type view of the specimen & discontinuities.
  • D-Scan displays an end view of the specimen at the current position of the probe.
  • The data can also be captured and stored for inspector review. This also makes future reference and inspections easier.
  • The replayed data can be processed and displayed in various ways using the instrument used to acquire the data or on analysis software that provides additional processing capabilities.
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Limitations

Limitations of Phased Array include:
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  • Accessibility to a clean smooth surface.
  • Material of piece being scanned. Coarse-grained materials and exotic alloys can attenuate Phased Array UT energy the same way it will attenuate conventional UT energy and cause limitations to the inspection.
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Need a Customized Inspection Solution?

Our team works closely with you to understand your challenges and deliver the right combination of services to meet your goals.

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XCEL
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