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  Investigation of the orientation relationship between nano-sized G-phase precipitates and austenite with scanning nano-beam electron diffraction using a pixelated detector

Cautaerts, N., Rauch, E. F., Jeong, J., Dehm, G., & Liebscher, C. (2021). Investigation of the orientation relationship between nano-sized G-phase precipitates and austenite with scanning nano-beam electron diffraction using a pixelated detector. Scripta Materialia, 201: 113930. doi:10.1016/j.scriptamat.2021.113930.

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Investigation of the orientation relationship between nano-sized G-phase precipitates and austenite with scanning nano-beam electron diffraction using a pixelated detector.pdf (Publisher version), 7MB
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Investigation of the orientation relationship between nano-sized G-phase precipitates and austenite with scanning nano-beam electron diffraction using a pixelated detector.pdf
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2021
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 Creators:
Cautaerts, Niels1, Author              
Rauch, Edgar Fernand2, Author              
Jeong, Jiwon1, Author              
Dehm, Gerhard3, Author              
Liebscher, Christian1, Author              
Affiliations:
1Advanced Transmission Electron Microscopy, Structure and Nano-/ Micromechanics of Materials, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society, ou_1863399              
2Génie Physique et Mécanique des Matériaux, Science et Ingénierie des Matériaux et Procédés, Grenoble INP, 1130 rue de la Piscine, Saint Martin d'Héres Cedex, FR-38402, France, ou_persistent22              
3Structure and Nano-/ Micromechanics of Materials, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society, ou_1863398              

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Free keywords: Austenite; Diffraction patterns; Electron diffraction; Interferometry; Phase comparators; Template matching, Body-centered cubic; Face-centered cubic; Nano-sized precipitates; Nanobeam electron diffraction; Orientation relationship; Phase precipitate; Pixelated detectors; Two stage template matching, Crystal orientation
 Abstract: Scanning nano-beam electron diffraction with a pixelated detector was employed to investigate the orientation relationship of nanometer sized, irradiation induced G-phase (M6Ni16Si7) precipitates in an austenite matrix. Using this detector, the faint diffraction spots originating from the small G-phase particles could be resolved simultaneously as the intense matrix reflections. The diffraction patterns were analyzed using a two-stage template matching scheme, whereby the matrix is indexed first and the precipitates are indexed second after subtraction of the matrix contribution to the diffraction patterns. The results show that G-phase forms with orientation relationships relative to austenite that are characteristic of face-centered cubic (FCC) to body-centered cubic (BCC) transformations. This work demonstrates that nano-beam electron diffraction with a pixelated detector is a promising technique to investigate orientation relationships of nano-sized precipitates with complex crystal structures in other material systems with relative ease. © 2021 The Author(s)

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Language(s): eng - English
 Dates: 2021-08
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1016/j.scriptamat.2021.113930
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Title: Scripta Materialia
  Abbreviation : Scripta Mater.
Source Genre: Journal
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Publ. Info: Amsterdam : Elsevier B. V.
Pages: - Volume / Issue: 201 Sequence Number: 113930 Start / End Page: - Identifier: ISSN: 1359-6462
CoNE: https://pure.mpg.de/cone/journals/resource/954926243506