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Neutron strain tomography using Bragg-edge transmission

  • Brian Abbey , Shu Yan Zhang , Mengyin Xie , Xu Song and Alexander M. Korsunsky
Published/Copyright: May 31, 2013
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 103 Issue 2

Abstract

Predicting the fatigue lifetime of components relies on a knowledge of the residual elastic strain present throughout the bulk of the material. Non-destructively mapping the complete strain distribution throughout large volumes presents significant practical challenges. Recently a technique known as Bragg-edge neutron transmission has been developed as a means of non-destructive bulk elastic strain evaluation. Whilst conventional radiography measures the integral absorption, Bragg-edge neutron transmission probes the average strain along the incident beam direction. A “strain radiogram” is thus a two-dimensional average projection of the strain within the sample. Here we demonstrate how strain radiograms can be used for “neutron strain tomography” and we present and contrast two different approaches to the problem of characterising spatially resolved elastic strains.

Keywords: Neutron Bragg-edge transmission; Strain tomography; Neutron tomography
* Correspondence address Dr. Brian Abbey, ARC Centre of Excellence for Coherent X-ray Science School of Physics, The University of Melbourne, Parkville, Victoria 3010, Australia, Tel.: +3 834 47541, Fax: +3 9347 8912, E-mail:

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Received: 2011-7-17
Accepted: 2011-11-20
Published Online: 2013-05-31
Published in Print: 2012-02-01

© 2012, Carl Hanser Verlag, München

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https://doi.org/10.3139/146.110674
Keywords for this article
Neutron Bragg-edge transmission; Strain tomography; Neutron tomography

Articles in the same Issue

  1. Contents
  2. Contents
  3. Editorial
  4. Exploiting Contrast with Tomography
  5. Original Contributions
  6. 3D imaging of complex materials: the case of cement
  7. Neutron Bragg-edge mapping of weld seams
  8. 3D image analysis and stochastic modelling of open foams
  9. In-situ X-ray microtomography study of the movement of a granular material within a die
  10. Synchrotron and neutron laminography for three-dimensional imaging of devices and flat material specimens
  11. Numerical correction of X-ray detector backlighting
  12. X-ray phase contrast and fluorescence nanotomography for material studies
  13. Estimation of the probability of finite percolation in porous microstructures from tomographic images
  14. Imaging of grain-level orientation and strain in thicker metallic polycrystals by high energy transmission micro-beam Laue (HETL) diffraction techniques
  15. Three-dimensional morphology and mechanics of bone scaffolds fabricated by rapid prototyping
  16. Fatigue induced deformation of taper connections in dental titanium implants
  17. Beyond imaging: on the quantitative analysis of tomographic volume data
  18. Damage fluctuations in creep deformed copper studied with synchrotron X-ray microtomography
  19. Neutron strain tomography using Bragg-edge transmission
  20. Three-dimensional registration of tomography data for quantification in biomaterials science
  21. Morpho-topological volume analysis of porous materials for nuclear applications
  22. People
  23. Professor Dr. rer. nat. Richard Wagner
  24. DGM News
  25. DGM News
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