ISIS Neutron and Muon Source Data Journal
This is a page describing data taken during an experiment at the ISIS Neutron and Muon Source. Information about the ISIS Neutron and Muon Source can be found at https://www.isis.stfc.ac.uk.
Revealing hydrogen-induced short-range ordering (SRO) effects in high temperature materials by muon spectroscopy
Abstract: As hydrogen becomes increasingly important in climate-friendly technologies, understanding its impact on high-temperature materials is essential. This study explores hydrogen-induced short-range ordering (SRO) effects in Ni-based alloys using muon spectroscopy. Such alloys are critical in hydrogen-based combustion applications, where embrittlement and other material changes pose challenges. We focus on two alloys: Ni80Cr20 (Nichrom) and Ni80Mo20, which serve as models for commercial superalloys. Hydrogen-charged samples of Nichrom at 300°C and 500°C will be compared with solution-annealed and aged references. For Ni80Mo20, solution-annealed and aged samples will also be tested, with SRO expected in the aged condition. Muon spectroscopy, sensitive to local magnetic fields and chemical ordering, will be conducted at four temperatures (50K, 100K, 150K, and 273K) to detect potential SRO effects. Initial positron annihilation results suggest SRO may occur in hydrogen-charged samples, highlighting the need for deeper investigation. This research aims to enhance understanding of hydrogen's effects on high-temperature alloys, aiding in the development of more resilient materials for industrial hydrogen applications.
Principal Investigator: Mr Oliver Nagel
Experimenter: Dr Massimo Fritton
Experimenter: Professor Howard Stone
Experimenter: Mrs Bianca Grandjean
Local Contact: Dr Stephen Cottrell
Experimenter: Dr Ralph Gilles
Experimenter: Dr Steffen Neumeier
Experimenter: Dr Alexander Mutschke
Experimenter: Mr Ming En Pek
Experimenter: Mr James Hogg
DOI: 10.5286/ISIS.E.RB2510407
ISIS Experiment Number: RB2510407
| Part DOI | Instrument | Public release date | Download Link |
|---|---|---|---|
| 10.5286/ISIS.E.RB2510407-1 | ARGUS | 06 June 2028 | Download |
Publisher: STFC ISIS Neutron and Muon Source
Data format: RAW/Nexus
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Data Citation
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publication is as:
[author], [date], [title], [publisher],
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For Example:
Mr Oliver Nagel et al; (2025): Revealing hydrogen-induced short-range ordering (SRO) effects in high temperature materials by muon spectroscopy, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2510407
Data is released under the CC-BY-4.0 license.
