ISIS Neutron and Muon Source Data Journal

An assessment of the lattice strain in single phase High Entropy Alloys with large atomic size differences

Abstract: High Entropy Alloys (HEAs) attract significant attention as a new class of materials that offer unique and attractive properties. It has been suggested that these multi component alloys necessarily contain high levels of strain in their structures, and this is often used to rationalise their properties. However, our recent total scattering study on the exemplar HEA CrMnFeCoNi has cast doubt on this assertion by demonstrating that the level of local strain in the HEA is comparable to that in compositionally simpler alloys. In the proposed experiment total scattering data will be used to probe the local structure of another exemplar HEA, VNbMoTaW, which exhibits much greater variation in atomic radii, to determine the extent to which its lattice can be considered strained. The results of this experiment could challenge one of the core principles on which the study of this field is based.

Principal Investigator: Professor Nick Jones
Experimenter: Dr Helen Playford
Experimenter: Dr Lewis Owen
Experimenter: Professor Howard Stone

DOI: 10.5286/ISIS.E.RB1620376

ISIS Experiment Number: RB1620376

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:
Professor Nick Jones et al; (2017): An assessment of the lattice strain in single phase High Entropy Alloys with large atomic size differences, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1620376

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