Hydrogen induced cracking refers to internal fissures caused by trapped hydrogen atoms. Hydrogen atoms are among the smallest atoms and can diffuse through any metallic surface, causing damage. HIC is most commonly associated with hydrogen sulfide, a byproduct of many petrochemical processes.
CIMA recommends automated ultrasonic testing to detect this particular failure mechanism, which often affects pipelines, towers, vessels and heat exchangers. Our high-resolution equipment gives clear, easy-to-store digital data and can produce a printable image of the actual defect size.
The repeatability of automated ultrasonic testing also lends itself well to ongoing, side-by-side analysis and periodic integrity testing. Without regular testing, hydrogen cracking can flourish over a prolonged period and cause failure after reaching a critical point.
