ISIS Neutron and Muon Source Data Journal

Phase separation and embrittlement in duplex stainless steel

Abstract: Duplex stainless steels (DSS), containing both austenite and ferrite phases, are attractive materials owing to a combination of high strength and excellent corrosion resistance and are a natural material choice in applications such as e.g. pressurized equipment in the nuclear, chemical and pulp & paper industries. To increase efficiency in these applications, higher service temperatures and operational temperatures are required. However, the service temperature of DSS grades is limited to ~250°C. Above this temperature, within the ferrite phase, the alloying elements separate into Fe and Cr rich regions, due to phase separation (PS) phenomena, and the material is embrittled. In fully ferritic alloys, PS has been studied for a long time but less work has been performed on studying PS in commercial grade duplex alloys. We propose to study embrittlement in commercially available DSS.

Principal Investigator: Dr Peter Hedström
Local Contact: Dr Steve King
Experimenter: Dr Joakim Odqvist
Experimenter: Dr Yadunandan Das

DOI: 10.5286/ISIS.E.RB1810590

ISIS Experiment Number: RB1810590

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 Peter Hedström et al; (2018): Phase separation and embrittlement in duplex stainless steel, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1810590

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