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- Title
Lattice Distortions in the FeCoNiCrMn High Entropy Alloy Studied by Theory and Experiment.
- Authors
Hyun Seok Oh; Duancheng Ma; Leyson, Gerard Paul; Grabowski, Blazej; Eun Soo Park; Körmann, Fritz; Raabe, Dierk
- Abstract
Lattice distortions constitute one of the main features characterizing high entropy alloys. Local lattice distortions have, however, only rarely been investigated in these multi-component alloys. We, therefore, employ a combined theoretical electronic structure and experimental approach to study the atomistic distortions in the FeCoNiCrMn high entropy (Cantor) alloy by means of density-functional theory and extended X-ray absorption fine structure spectroscopy. Particular attention is paid to element-resolved distortions for each constituent. The individual mean distortions are small on average, <1%, but their fluctuations (i.e., standard deviations) are an order of magnitude larger, in particular for Cr andMn. Good agreement between theory and experiment is found.
- Subjects
LATTICE dynamics; ELECTRIC distortion; ENTROPY; ALLOYS; ELECTRONIC structure
- Publication
Entropy, 2016, Vol 18, Issue 9, p321
- ISSN
1099-4300
- Publication type
Article
- DOI
10.3390/e18090321