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  Hydrogen diffusion and trapping in a cryogenic processed high-Cr ferrous alloy

Jovičević-Klug, P., Prabhakar, J. M., Kasdorf Giesbrecht, C., Schwarz, T., Bonnekoh, C., Rieth, M., et al. (2024). Hydrogen diffusion and trapping in a cryogenic processed high-Cr ferrous alloy. npj Materials Degradation, 8(1): 104. doi:10.1038/s41529-024-00522-1.

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Item Permalink: https://hdl.handle.net/21.11116/0000-000F-EE4E-F Version Permalink: https://hdl.handle.net/21.11116/0000-000F-F179-9
Genre: Journal Article

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2024
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 Creators:
Jovičević-Klug, Patricia1, 2, Author           
Prabhakar, J. Manoj2, Author           
Kasdorf Giesbrecht, Cristiano2, Author           
Schwarz, Tim3, Author           
Bonnekoh, Carsten4, Author           
Rieth, Michael4, Author           
Rohwerder, Michael2, Author           
Affiliations:
1Surface Science for Future Materials, Project Groups, Interface Chemistry and Surface Engineering, Max Planck Institute for Sustainable Materials, Max Planck Society, ou_3614276              
2Corrosion, Interface Chemistry and Surface Engineering, Max Planck Institute for Sustainable Materials, Max Planck Society, ou_3614273              
3Atom Probe Tomography, Microstructure Physics and Alloy Design, Max Planck Institute for Sustainable Materials, Max Planck Society, ou_3614245              
4Karlsruhe Institute of Technology, Institute for Applied Materials - Applied Materials Physics, 76344 Eggenstein-Leopoldshafen, Germany, ou_persistent22              

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 Abstract: The effect of hydrogen diffusion and trapping was studied in a high-Cr ferrous alloy using an inverted scanning Kelvin probe and thermal desorption spectroscopy in correlation with microstructure and residual stress study. In addition, different processing of ferritic/martensitic 9Cr1WTaV alloy (EUROFER97) was tested in correlation with observed selected properties to observe induced changes in material degradation and surface. The activation energies for hydrogen traps were shown to have distinct peaks corresponding to different trapping mechanisms, including matrix dislocations and grain boundaries. For the cryogenically treated sample, an additional peak was also identified and correlated with increased carbide precipitation.

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Language(s): eng - English
 Dates: 2024-10-11
 Publication Status: Issued
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 Identifiers: DOI: 10.1038/s41529-024-00522-1
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Title: npj Materials Degradation
  Abbreviation : npj Mater. Degrad.
Source Genre: Journal
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Pages: - Volume / Issue: 8 (1) Sequence Number: 104 Start / End Page: - Identifier: ISSN: 2397-2106
CoNE: https://pure.mpg.de/cone/journals/resource/2397-2106