What is Ultrasonic Phased Array Testing?
Phased Array is an ultrasonic testing technique that uses specialized multi-element “array” transducers and pulses those elements separately in a patterned sequence called “phasing”. This phasing sequence allows wave steering, focusing, and scanning. This is all performed electronically. The examination can be tailored for each application, increasing speed and reliability of the inspection.
With the ability to collect and encode full volumetric data, Phased Array brings code compliance and auditable results to the everyday Ultrasonic examination. This makes Phased Array an effective and efficient alternative to Radiographic inspection. And since there is no radiation or environmental hazards, Phased Array inspections can access radiation sensitive areas, increase project production by not displacing other crafts in the area, and maximizes on-site and personnel safety.
Advantages of Phased Array
- Excellent repeatability
- Increased inspection speed
- Accurate results
- Ability to inspect complex geometries
- Ability to inspect large areas
- Permanent auditable results
- No safety hazards
Phased Array Inspection Applications
Petrochemical
- Corrosion mapping
- Detection of hydrogen-induced cracking (HIC), stress corrosion cracking (SCC), and stress-oriented hydrogen induced cracking (SOHIC)
- Weld inspection of pressure vessels, piping, and tubing
- Vessels and piping fabricated with composite materials
- Accurate sizing data for fitness-for-service (FFS) calculations
Power Generation
- Turbine blades and Christmas tree designs
- Pressure vessel and piping welds
- Erosion/corrosion mapping
Aerospace
- Friction stir welds
- Composite panels
- Landing gear cylinders
- Titanium billets, forgings and castings
