Reflections on the Analysis of Interfaces and Grain Boundaries by Atom Probe Tomography

Interfaces play critical roles in materials and are usually both structurally and compositionally complex microstructural features. The precise characterization of their nature in three-dimensions at the atomic scale is one of the grand challenges for microscopy and microanalysis, as this informatio...

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Vydáno v:Microscopy and microanalysis Ročník 26; číslo 2; s. 247 - 257
Hlavní autoři: Jenkins, Benjamin M., Danoix, Frédéric, Gouné, Mohamed, Bagot, Paul A.J., Peng, Zirong, Moody, Michael P., Gault, Baptiste
Médium: Journal Article
Jazyk:angličtina
Vydáno: United States Oxford University Press 01.04.2020
Cambridge University Press
Témata:
Boundaries
Chemical Sciences
Data analysis
Grain boundaries
Interfaces
Investigations
Ion beams
Material chemistry
Microscopy
Sensors
Spatial resolution
Specimen preparation
Steel
Tomography
steel
interfaces
coupled solute drag
atom probe tomography
ISSN:1431-9276, 1435-8115, 1435-8115
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Shrnutí:Interfaces play critical roles in materials and are usually both structurally and compositionally complex microstructural features. The precise characterization of their nature in three-dimensions at the atomic scale is one of the grand challenges for microscopy and microanalysis, as this information is crucial to establish structure–property relationships. Atom probe tomography is well suited to analyzing the chemistry of interfaces at the nanoscale. However, optimizing such microanalysis of interfaces requires great care in the implementation across all aspects of the technique from specimen preparation to data analysis and ultimately the interpretation of this information. This article provides critical perspectives on key aspects pertaining to spatial resolution limits and the issues with the compositional analysis that can limit the quantification of interface measurements. Here, we use the example of grain boundaries in steels; however, the results are applicable for the characterization of grain boundaries and transformation interfaces in a very wide range of industrially relevant engineering materials.
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ISSN:1431-9276
1435-8115
1435-8115
DOI:10.1017/S1431927620000197