Work

Modeling bulk diffusion of hydrogen in X70 pipeline steel

Year: 2025

Type: article

Abstract: Hydrogen bulk diffusion and saturation of X70 pipeline steel was investigated by employing high-pressure gaseous hydrogen charging, thermal desorption analysis/spectroscopy (TDA/TDS) and numerical modeling/simulation of bulk diffusion. The trapping model was inversely parametrized using electrochemical hydrogen charging. The predictions made based on the model were validated with an independent set of experimental data that had been generated using high-pressure gaseous hydrogen charging, and literature data was used to verify the results of the simulations. It turned out that the bulk diffusion model is a unified approach that enables simulating hydrogen diffusion, trapping and saturation of X70 pipeline steel. Independently from the source of hydrogen the model can be used with high accuracy.

Source: Scientific Reports

DOI: 10.1038/s41598-025-90130-z

Authors: Andreas Drexler, Sergio Pastore, Josef Domitner

Institutions: Graz University of Technology, Böhler Edelstahl (Austria), Vrije Universiteit Brussel, Politecnico di Milano

Language: English

Topic: Hydrogen embrittlement and corrosion behaviors in metals

Subfield: Metals and Alloys

Field: Materials Science

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,690

OpenAlex ID: W4407807537

FWCI: 3.273

Cites: 79

Cited by: 15

Related to: 10