It’s deeply known that hydrogen can cause embrittlement in metal structures and components: in particular hydrogen induced delayed fracture can be extremely dangerous for High Strength Steels that are widely used in automotive industry and in several other sectors.
To promote new standards of safety and performance, and to hug the inevitable challenge represented by the energy transition, CEN-CENELEC has approved a CWA dedicated to perform diffusible H measurement directly in metallic components, as vehicle chassis, by using HELIOS 4 HOT PROBE equipment.
The HELIOS 4 HOT PROBE equipment was optimized within the framework of FormPlanet Horizon 2020 project to make the first step toward industrial online diffusible hydrogen monitoring and assess sheet metal part quality directly during manufacturing with a non-destructive methodology. It allows an alternative test method to the Barnacle electrode (ISO 15724:2001) and is based on a solid-state sensor which does not require surface preparation nor electrolytic solution. Local heating of the component enhances the hydrogen to diffuse out of the metal to be detected by the sensor. Ad hoc calibration permits quantitative results for the material under investigation.

To know more about CWA download the link below:

CWA 17794:2021 Measurement of diffusible hydrogen in metallic materials-HELIOS 4 HOT PROBE method

Find out more on HELIOS 4 HOT PROBE in the area HYDROGEN EMBRITTLEMENT/PRODUCTS