Enhanced gaseous hydrogen solubility in ferritic and martensitic steels at low temperatures

Andreas Drexler*, Florian Konert, Oded Sobol, Michael Rhode, Josef Domitner, Christof Sommitsch, Thomas Böllinghaus

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Metals that are exposed to high pressure hydrogen gas may undergo detrimental failure by embrittlement. Understanding the mechanisms and driving forces of hydrogen absorption on the surface of metals is crucial for avoiding hydrogen embrittlement. In this study, the effect of stress-enhanced gaseous hydrogen uptake in bulk metals is investigated in detail. For that purpose, a generalized form of Sievert's law is derived from thermodynamic potentials considering the effect of microstructural trapping sites and multiaxial stresses. This new equation is parametrized and verified using experimental data for carbon steels, which were charged under gaseous hydrogen atmosphere at pressures up to 1000 bar. The role of microstructural trapping sites on the parameter identification is critically discussed. Finally, the parametrized equation is applied to calculate the stress-enhanced hydrogen solubility of thin-walled pipelines and thick-walled pressure vessels during service.

Original languageEnglish
Pages (from-to)39639-39653
Number of pages15
JournalInternational Journal of Hydrogen Energy
Issue number93
Publication statusPublished - 2022


  • Hydrogen gas
  • Hydrogen trapping
  • Pressure-dependent solubility
  • Sievert's law
  • Steel
  • Thermodynamic modelling

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Fuel Technology
  • Renewable Energy, Sustainability and the Environment

Fields of Expertise

  • Mobility & Production

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