ISIS Neutron and Muon Source Data Journal

Hydrogen in Steel Visualized by Neutron Imaging: In situ Hydrogen Charging

Abstract: In-situ visualising hydrogen distribution during hydrogen charging via neutron imaging would allow quantification and a clearer interpretation of the processes involved in hydrogen embrittlement (HE)-assisted fatigue crack growth in steels. The transmission intensities in both charged and uncharged samples will be measured using IMAT, using an in-situ charging method that will generate a gradient of hydrogen within the samples. Hydrogen absorption will provide contrast imaging in the measured data. The results will determine the minimum measurable hydrogen concentration in steels, which will help determine the sensitivity of neutron imaging at IMAT and facilitate an understanding of the relationship between H concentration in steel and fatigue crack growth rates (FCGRs). Once the sensitivity is established, local hydrogen detection ahead of crack tips will be made and correlated to FCGRs. The outcomes of this experiment will advance our mechanistic understanding of hydrogen transport, storage and embrittlement in structural materials.

Local Contact: Dr Winfried Kockelmann
Experimenter: Mr Soumyadeep Datta
Experimenter: Dr Mingwen Bai
Experimenter: Mr Omar Benabdel Jalil

DOI: 10.5286/ISIS.E.RB2310414

ISIS Experiment Number: RB2310414

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
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Data Citation

The recommended format for citing this dataset in a research publication is as:
[author], [date], [title], [publisher], [doi]

For Example:
Dr Winfried Kockelmann et al; (2023): Hydrogen in Steel Visualized by Neutron Imaging: In situ Hydrogen Charging, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2310414

Data is released under the CC-BY-4.0 license.