Quantitative chemical-structure evaluation using atom probe tomography: Short-range order analysis of Fe-Al.

Marceau, R. K. W., Ceguerra, A. V., Breen, A. J., Raabe, D. and Ringer, S. P. 2015, Quantitative chemical-structure evaluation using atom probe tomography: Short-range order analysis of Fe-Al., Ultramicroscopy, vol. 157, pp. 12-20, doi: 10.1016/j.ultramic.2015.05.001.

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Title Quantitative chemical-structure evaluation using atom probe tomography: Short-range order analysis of Fe-Al.
Author(s) Marceau, R. K. W.ORCID iD for Marceau, R. K. W. orcid.org/0000-0003-3612-8762
Ceguerra, A. V.
Breen, A. J.
Raabe, D.
Ringer, S. P.
Journal name Ultramicroscopy
Volume number 157
Start page 12
End page 20
Total pages 9
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Publication date 2015-10
ISSN 1879-2723
Keyword(s) Atom probe tomography
Intermetallics (iron-aluminides)
Short-range ordering
Summary Short-range-order (SRO) has been quantitatively evaluated in an Fe-18Al (at%) alloy using atom probe tomography (APT) data and by calculation of the generalised multicomponent short-range order (GM-SRO) parameters, which have been determined by shell-based analysis of the three-dimensional atomic positions. The accuracy of this method with respect to limited detector efficiency and spatial resolution is tested against simulated D03 ordered data. Whilst there is minimal adverse effect from limited atom probe instrument detector efficiency, the combination of this with imperfect spatial resolution has the effect of making the data appear more randomised. The value of lattice rectification of the experimental APT data prior to GM-SRO analysis is demonstrated through improved information sensitivity.
Language eng
DOI 10.1016/j.ultramic.2015.05.001
Field of Research 020401 Condensed Matter Characterisation Technique Development
091207 Metals and Alloy Materials
Socio Economic Objective 970102 Expanding Knowledge in the Physical Sciences
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2015, Elsevier
Persistent URL http://hdl.handle.net/10536/DRO/DU:30073813

Document type: Journal Article
Collections: Institute for Frontier Materials
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