Characterization of crystallographic structures using bragg-edge neutron imaging at the spallation neutron source

Gian Song; Jiao Y.Y. Lin; Jean C. Bilheux; Qingge Xie; Louis J. Santodonato; Jamie J. Molaison; Harley D. Skorpenske; Antonio M. Dos Santos; Chris A. Tulk; Ke An; Alexandru D. Stoica; Michael M. Kirka; Ryan R. Dehoff; Anton S. Tremsin; Jeffrey Bunn; Lindsay M. Sochalski-Kolbus; Hassina Z. Bilheux

doi:10.3390/jimaging3040065

Characterization of crystallographic structures using bragg-edge neutron imaging at the spallation neutron source

Gian Song, Jiao Y.Y. Lin, Jean C. Bilheux, Qingge Xie, Louis J. Santodonato, Jamie J. Molaison, Harley D. Skorpenske, Antonio M. Dos Santos, Chris A. Tulk, Ke An, Alexandru D. Stoica, Michael M. Kirka, Ryan R. Dehoff, Anton S. Tremsin, Jeffrey Bunn, Lindsay M. Sochalski-Kolbus, Hassina Z. Bilheux

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35 Scopus citations

Abstract

Over the past decade, wavelength-dependent neutron radiography, also known as Bragg-edge imaging, has been employed as a non-destructive bulk characterization method due to its sensitivity to coherent elastic neutron scattering that is associated with crystalline structures. Several analysis approaches have been developed to quantitatively determine crystalline orientation, lattice strain, and phase distribution. In this study, we report a systematic investigation of the crystal structures of metallic materials (such as selected textureless powder samples and additively manufactured (AM) Inconel 718 samples), using Bragg-edge imaging at the Oak Ridge National Laboratory (ORNL) Spallation Neutron Source (SNS). Firstly, we have implemented a phenomenological Gaussian-based fitting in a Python-based computer called iBeatles. Secondly, we have developed a model-based approach to analyze Bragg-edge transmission spectra, which allows quantitative determination of the crystallographic attributes. Moreover, neutron diffraction measurements were carried out to validate the Bragg-edge analytical methods. These results demonstrate that the microstructural complexity (in this case, texture) plays a key role in determining the crystallographic parameters (lattice constant or interplanar spacing), which implies that the Bragg-edge image analysis methods must be carefully selected based on the material structures.

Original language	English
Article number	65
Journal	Journal of Imaging
Volume	3
Issue number	4
DOIs	https://doi.org/10.3390/jimaging3040065
State	Published - Dec 2017

Funding

Acknowledgments: This research was sponsored by the Laboratory Directed Research and Development Program of ORNL, managed by UT-Battelle LLC, for DOE. Resources at the High Flux Isotope Reactor and Spallation Neutron Source, U.S. DOE Office of Science User Facilities operated by ORNL, were used in this research. Research at the Manufacturing Demonstration Facility (MDF) was sponsored by the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Advanced Manufacturing Office, under contract DE-AC05-00OR22725 with UT-Battelle, LLC. The team thanks M. Frost and R. Mills for setting up the detector and furnace at the SNS beamlines. The team would like to thank Prof. Dayakar Penumadu, from the University of Tennessee-Knoxville for providing the load frame during the imaging experiments at SNAP.

Funders	Funder number
UT-Battelle LLC
U.S. Department of Energy
Advanced Manufacturing Office	DE-AC05-00OR22725
Office of Energy Efficiency and Renewable Energy
Laboratory Directed Research and Development

Keywords

Additive manufacturing
Bragg-edge imaging
Crystallographic characterization
Inconel 718
Wavelength-dependent neutron radiography

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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Song, G., Lin, J. Y. Y., Bilheux, J. C., Xie, Q., Santodonato, L. J., Molaison, J. J., Skorpenske, H. D., Dos Santos, A. M., Tulk, C. A., An, K., Stoica, A. D., Kirka, M. M., Dehoff, R. R., Tremsin, A. S., Bunn, J., Sochalski-Kolbus, L. M., & Bilheux, H. Z. (2017). Characterization of crystallographic structures using bragg-edge neutron imaging at the spallation neutron source. Journal of Imaging, 3(4), Article 65. https://doi.org/10.3390/jimaging3040065

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title = "Characterization of crystallographic structures using bragg-edge neutron imaging at the spallation neutron source",

abstract = "Over the past decade, wavelength-dependent neutron radiography, also known as Bragg-edge imaging, has been employed as a non-destructive bulk characterization method due to its sensitivity to coherent elastic neutron scattering that is associated with crystalline structures. Several analysis approaches have been developed to quantitatively determine crystalline orientation, lattice strain, and phase distribution. In this study, we report a systematic investigation of the crystal structures of metallic materials (such as selected textureless powder samples and additively manufactured (AM) Inconel 718 samples), using Bragg-edge imaging at the Oak Ridge National Laboratory (ORNL) Spallation Neutron Source (SNS). Firstly, we have implemented a phenomenological Gaussian-based fitting in a Python-based computer called iBeatles. Secondly, we have developed a model-based approach to analyze Bragg-edge transmission spectra, which allows quantitative determination of the crystallographic attributes. Moreover, neutron diffraction measurements were carried out to validate the Bragg-edge analytical methods. These results demonstrate that the microstructural complexity (in this case, texture) plays a key role in determining the crystallographic parameters (lattice constant or interplanar spacing), which implies that the Bragg-edge image analysis methods must be carefully selected based on the material structures.",

keywords = "Additive manufacturing, Bragg-edge imaging, Crystallographic characterization, Inconel 718, Wavelength-dependent neutron radiography",

author = "Gian Song and Lin, {Jiao Y.Y.} and Bilheux, {Jean C.} and Qingge Xie and Santodonato, {Louis J.} and Molaison, {Jamie J.} and Skorpenske, {Harley D.} and {Dos Santos}, {Antonio M.} and Tulk, {Chris A.} and Ke An and Stoica, {Alexandru D.} and Kirka, {Michael M.} and Dehoff, {Ryan R.} and Tremsin, {Anton S.} and Jeffrey Bunn and Sochalski-Kolbus, {Lindsay M.} and Bilheux, {Hassina Z.}",

note = "Publisher Copyright: {\textcopyright} 2017 by the authors.",

year = "2017",

month = dec,

doi = "10.3390/jimaging3040065",

language = "English",

volume = "3",

journal = "Journal of Imaging",

issn = "2313-433X",

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Song, G, Lin, JYY, Bilheux, JC, Xie, Q, Santodonato, LJ, Molaison, JJ, Skorpenske, HD, Dos Santos, AM, Tulk, CA, An, K, Stoica, AD, Kirka, MM , Dehoff, RR, Tremsin, AS, Bunn, J, Sochalski-Kolbus, LM & Bilheux, HZ 2017, 'Characterization of crystallographic structures using bragg-edge neutron imaging at the spallation neutron source', Journal of Imaging, vol. 3, no. 4, 65. https://doi.org/10.3390/jimaging3040065

TY - JOUR

T1 - Characterization of crystallographic structures using bragg-edge neutron imaging at the spallation neutron source

AU - Song, Gian

AU - Lin, Jiao Y.Y.

AU - Bilheux, Jean C.

AU - Xie, Qingge

AU - Santodonato, Louis J.

AU - Molaison, Jamie J.

AU - Skorpenske, Harley D.

AU - Dos Santos, Antonio M.

AU - Tulk, Chris A.

AU - An, Ke

AU - Stoica, Alexandru D.

AU - Kirka, Michael M.

AU - Dehoff, Ryan R.

AU - Tremsin, Anton S.

AU - Bunn, Jeffrey

AU - Sochalski-Kolbus, Lindsay M.

AU - Bilheux, Hassina Z.

PY - 2017/12

Y1 - 2017/12

N2 - Over the past decade, wavelength-dependent neutron radiography, also known as Bragg-edge imaging, has been employed as a non-destructive bulk characterization method due to its sensitivity to coherent elastic neutron scattering that is associated with crystalline structures. Several analysis approaches have been developed to quantitatively determine crystalline orientation, lattice strain, and phase distribution. In this study, we report a systematic investigation of the crystal structures of metallic materials (such as selected textureless powder samples and additively manufactured (AM) Inconel 718 samples), using Bragg-edge imaging at the Oak Ridge National Laboratory (ORNL) Spallation Neutron Source (SNS). Firstly, we have implemented a phenomenological Gaussian-based fitting in a Python-based computer called iBeatles. Secondly, we have developed a model-based approach to analyze Bragg-edge transmission spectra, which allows quantitative determination of the crystallographic attributes. Moreover, neutron diffraction measurements were carried out to validate the Bragg-edge analytical methods. These results demonstrate that the microstructural complexity (in this case, texture) plays a key role in determining the crystallographic parameters (lattice constant or interplanar spacing), which implies that the Bragg-edge image analysis methods must be carefully selected based on the material structures.

AB - Over the past decade, wavelength-dependent neutron radiography, also known as Bragg-edge imaging, has been employed as a non-destructive bulk characterization method due to its sensitivity to coherent elastic neutron scattering that is associated with crystalline structures. Several analysis approaches have been developed to quantitatively determine crystalline orientation, lattice strain, and phase distribution. In this study, we report a systematic investigation of the crystal structures of metallic materials (such as selected textureless powder samples and additively manufactured (AM) Inconel 718 samples), using Bragg-edge imaging at the Oak Ridge National Laboratory (ORNL) Spallation Neutron Source (SNS). Firstly, we have implemented a phenomenological Gaussian-based fitting in a Python-based computer called iBeatles. Secondly, we have developed a model-based approach to analyze Bragg-edge transmission spectra, which allows quantitative determination of the crystallographic attributes. Moreover, neutron diffraction measurements were carried out to validate the Bragg-edge analytical methods. These results demonstrate that the microstructural complexity (in this case, texture) plays a key role in determining the crystallographic parameters (lattice constant or interplanar spacing), which implies that the Bragg-edge image analysis methods must be carefully selected based on the material structures.

KW - Additive manufacturing

KW - Bragg-edge imaging

KW - Crystallographic characterization

KW - Inconel 718

KW - Wavelength-dependent neutron radiography

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U2 - 10.3390/jimaging3040065

DO - 10.3390/jimaging3040065

M3 - Article

AN - SCOPUS:85041472622

SN - 2313-433X

VL - 3

JO - Journal of Imaging

JF - Journal of Imaging

IS - 4

M1 - 65

ER -

Characterization of crystallographic structures using bragg-edge neutron imaging at the spallation neutron source

Abstract

Funding

Keywords

UN SDGs

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