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Ultrasonic HTHA Inspection Solutions

Ultrasonic HTHA Inspection Solutions
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Ultrasonic HTHA Inspection Solutions - 1

Ultrasonic HTHA Inspection Solutions Dual Linear Array™ (DLA) and Total Focusing Method (TFM) Probes Multitechnology HTHA Probes Help Maintain Asset Safety Optimum HTHA detection on thicknesses ranging from 4 mm up to 95 mm using high-frequency, high-sensitivity small element probes. Angle-beam DLA probe (A28) › High-resolution 10 MHz dual 32-element arrays › Cover more of the weld and HAZ with high beam-steering capability › Increased POD offered by a longer focal range due to its patented pivoting housing Zero-degree integrated wedge DLA probes (REX1) › 10 MHz dual 64-element arrays › Faster scanning with beam width coverage up to 30 mm › Adjustable stabilization and wear protection system TFM probes › High frequencies with multiple smaller elements unleash the potential of TFM for H

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Ultrasonic HTHA Inspection Solutions - 2

Leading-Edge Technology Optimized for Efficient HTHA Detection Early detection of high-temperature hydrogen attack (HTHA) damage can help oil, gas, and petrochemical facilities avoid catastrophic failures of critical highpressure assets. While it is essential to evaluate the equipment’s condition, HTHA is challenging to detect and assess, including for ultrasonic testing (UT). For this reason, Olympus created probes specifically designed to detect HTHA-induced damage at an earlier stage. The solution comprises Dual Linear Array™ (DLA) probes that are used to perform the pitch-catch...

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Ultrasonic HTHA Inspection Solutions - 3

Challenges of Early HTHA Detection HTHA occurs in high-temperature, high-pressure hydrogen environments, such as heat exchangers, piping, and pressure vessels, mainly in the weld’s heat-affected zone (HAZ). Free hydrogen can seep in between the grains of steel alloys and bind with the carbon contents, eventually creating decarburization and methane pockets. If HTHA is not detected early enough, the number of pockets can increase and join, ultimately forming cracks. To avoid potential equipment failure, it is important to detect HTHA before these cracks form. At an early stage, HTHA pockets...

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