Phased array ultrasonic testing brings new dimensions to life cycle management inspections. Find out what it is, where it should be used, and the benefits it offers.
Phased array ultrasonic testing (PAUT) is an advanced inspection method in which ultrasonic signals are controlled in phases using multiple sensor elements. This provides millions of measurement points, which are used to create a visual representation of the object being inspected. Welds can be imaged as cross-sections, and any defects detected can be displayed, making it easy to understand the location and size of the defects. When examining material thickness and corrosion, areas of different thicknesses are shown in different colours, making it easy to identify thin, high-risk areas.
The method is suitable for inspection needs in many different industries, such as power plants, petrochemical facilities, the forest industry, engineering workshops, and infrastructure projects, such as the inspection of metal structures in bridges. Typical applications include the inspection of welds in pipelines, tanks, and plate structures, as well as the detecting of internal corrosion.
The result is comprehensive information from beyond the surface level
Compared to traditional ultrasonic testing, phased array ultrasonic testing produces much more data. It provides better visibility into internal structures and detects material deviations and defect types much more accurately than traditional ultrasonic testing.
The most significant advantages of phased array ultrasonic testing are its accuracy, coverage, and versatility. The method enables:
- accurate fault localisation and fault type identification and measurement – e.g., whether it is a crack or an unfused weld
- volumetric inspection with visibility inside the material and not just on the surface – even with large material thicknesses
- replacing radiographic testing when radiation safety risks and evacuation of the area are to be avoided
- data storage and comparability – results can be clearly compared in subsequent inspections.
All this leads to greater certainty for business operations. The inspection provides reliable information on the condition of the plant and equipment, which in turn enables making targeted investments and maintenance measures, and improving operational reliability. This way it is possible to anticipate the future, avoid serious production interruptions, and prevent damage that could amount to millions of euros in the worst-case scenario.
A practical example of the benefits:
Phased array ultrasonic testing can be used to reliably monitor the progression of a fault. We detected an early weld crack in our customer’s equipment that did not yet require repair. By monitoring the situation with phased array ultrasonic testing, we avoided the risk of potential leaks as well as unnecessary repair work and downtime.
Replico – the phased array ultrasonic testing expert
Replico offers phased array ultrasonic testing using the latest technology in the field, performed by qualified experts. Our team of experts has the necessary expertise and experience, as well as the tools and equipment to deliver accurate and well-documented results.
This is we carry out phased array ultrasonic testing:
- Planning based on drawings and inspection data requirements provided by the customer, as well as setting the parameters for the ultrasonic equipment for each specific target.
- Inspection – ultrasonic scanning and data storage on the device.
- Review of results – preliminary review of initial findings in the field and more detailed analysis using computer software.
- Reporting and documentation – the results are compiled into a clear report, which can be compared with previous results if necessary.
Investing in inspections is definitely worthwhile, as they can help you avoid major damage. At Replico, we can also help you assess the necessity and the extent of the inspections – cost-effectiveness is an important consideration, and traditional ultrasonic inspections still have their place.
Contact our experts for more information – we’ll tell you how phased array ultrasonic testing can meet your site’s specific needs.
