Ensonify offer PAUT solutions for the following applications:
Ensonify use the latest equipment to perform phased array ultrasonic testing on all configurations of welds in carbon and austenitic steel in accordance with American and ISO standards. Procedures are fully validated by Ensonify and their client prior to use on-site.
Ensuring the data quality is acceptable is critical for production scanning; in some cases the analysis of the collected data can be performed by other technicians based in on-site office areas, or even remotely performed from another country.
Ensonify also use PAUT to inspect pipework, vessels and structural steel for the detection of in-service defects such as fatigue cracks, corrosion/erosion utilising a range of probes for enhanced detectability and sizing.
Ensonify also performs bespoke validations and proving of proposed NDT technique based on detection and sizing of client specified defect detection level.
At Ensonify we train our technicians to use the calibration samples to develop familiarity with the typical responses from the various targets introduced into reference flanges and bolts. The geometry signals must be understood and accounted for so that technicians can quickly confirm quality data has been obtained.
Development of analysis methodology and display options will enable rapid evaluation of the flange face and bolt data. Collecting the entire PAUT data set allows post analysis and will enable comparison of previous inspection campaigns.
Ensonify use PA-CAT which uses an attenuation-based modelling algorithm to evaluate the minimum remaining wall thickness at pipe or vessel supports.
PA-CAT can be used on pipe from 2” OD and up, and thickness from 3.91mm up to 16mm. Scanning can be performed in either the axial or circumferential direction.
Ensonify has extensive experience in the inspection of corrosion resistant alloys using both conventional and advanced ultrasonic techniques.
All work on CRA material is validated by preparing and scanning mock-up reference welds in accordance with BS EN ISO 22825 or ASME V.
High temperature hydrogen attack (HTHA) is an irreversible deterioration of the mechanical properties of steel due to the reaction of hydrogen with carbon at temperatures in excess of 200 °C.
There are three HTHA stages:
Stage 1 – Incubation Period: The changes are almost imperceptible. Voids are at microscopic size.
Stage 2 – Rapid Crack Formation and Growth: The voids are linked together to create fissures (10 to 100 micron) and separate grains.
Stage 3 – Terminal Stage: Fissures link up to form cracks and affect the part integrity. Material strength is reduced and failure may occur. Ensonify use a combination of TULA ToFD probes and PAUT FMC/TFM techniques to initially detect and quantify HTHA at each stage.
