Mon, 03 April, 2023
A new paper on the non-destructive monitoring of hydrogen induced cracking has been published by MDPI’s Sensors journal.
The paper, ‘A Comparison of Two Types of Acoustic Emission Sensors for the Characterization of Hydrogen-Induced Cracking,’ was written by NSIRC PhD student with Brunel University and TWI, Dandan Liu, with co-authoring from fellow Brunel University students Bin Wang and Han Yang, along with TWI senior project leader, Stephen Grigg.
Hydrogen-induced cracking (HIC) is a common problem for the energy sector, including in oil and gas pipelines, equipment for offshore oilfields and for pressure vessels. HIC can cause structures to rupture, leading to contents leaking out or even causing explosions. As a result, it is important to monitor for HIC so any repairs can be carried out in good time.
Acoustic emission (AE) technologies are suitable for the non-destructive testing of safety critical assets while continuing normal operations. This makes sure that structures are kept safe from potential HIC while preventing costly downtimes for equipment.
The published report compares two acoustic emission sensors to determine and compare their ability to characterise hydrogen-induced cracking.
You can read the report of this work on open access at the journal of Sensors, here.