Subsurface Grain Morphology Reconstruction by Differential Aperture X-ray Microscopy
Abstract
A multistep, non-destructive grain morphology reconstruction methodology that is applicable to near-surface volumes is developed and tested on synthetic grain structures. This approach probes the subsurface crystal orientation using differential aperture X-ray microscopy (DAXM) on a sparse grid across the microstructure volume of interest. Resulting orientation data is clustered according to proximity in physical and orientation space and used as seed points for an initial Voronoi tessellation to (crudely) approximate the grain morphology. Curvature-driven grain boundary relaxation, simulated by means of the Voronoi Implicit Interface Method (VIIM), progressively improves the reconstruction accuracy. The similarity between bulk and readily accessible surface reconstruction error provides an objective termination criterion for boundary relaxation.
- Publication Date:
- Research Org.:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
- OSTI Identifier:
- 1377890
- DOE Contract Number:
- AC02-06CH11357
- Resource Type:
- Journal Article
- Journal Name:
- JOM. Journal of the Minerals, Metals & Materials Society
- Additional Journal Information:
- Journal Volume: 69; Journal Issue: 6; Journal ID: ISSN 1047-4838
- Publisher:
- Springer
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; Voronoi implicit interface method; Voronoi tessellation; X-ray diffraction; crystalline matter; grain boundary relaxation
Citation Formats
Eisenlohr, Philip, Shanthraj, Pratheek, Vande Kieft, Brendan R., Bieler, Thomas R., Liu, Wenjun, and Xu, Ruqing. Subsurface Grain Morphology Reconstruction by Differential Aperture X-ray Microscopy. United States: N. p., 2017.
Web. doi:10.1007/s11837-017-2357-z.
Eisenlohr, Philip, Shanthraj, Pratheek, Vande Kieft, Brendan R., Bieler, Thomas R., Liu, Wenjun, & Xu, Ruqing. Subsurface Grain Morphology Reconstruction by Differential Aperture X-ray Microscopy. United States. doi:10.1007/s11837-017-2357-z.
Eisenlohr, Philip, Shanthraj, Pratheek, Vande Kieft, Brendan R., Bieler, Thomas R., Liu, Wenjun, and Xu, Ruqing. Thu .
"Subsurface Grain Morphology Reconstruction by Differential Aperture X-ray Microscopy". United States. doi:10.1007/s11837-017-2357-z.
@article{osti_1377890,
title = {Subsurface Grain Morphology Reconstruction by Differential Aperture X-ray Microscopy},
author = {Eisenlohr, Philip and Shanthraj, Pratheek and Vande Kieft, Brendan R. and Bieler, Thomas R. and Liu, Wenjun and Xu, Ruqing},
abstractNote = {A multistep, non-destructive grain morphology reconstruction methodology that is applicable to near-surface volumes is developed and tested on synthetic grain structures. This approach probes the subsurface crystal orientation using differential aperture X-ray microscopy (DAXM) on a sparse grid across the microstructure volume of interest. Resulting orientation data is clustered according to proximity in physical and orientation space and used as seed points for an initial Voronoi tessellation to (crudely) approximate the grain morphology. Curvature-driven grain boundary relaxation, simulated by means of the Voronoi Implicit Interface Method (VIIM), progressively improves the reconstruction accuracy. The similarity between bulk and readily accessible surface reconstruction error provides an objective termination criterion for boundary relaxation.},
doi = {10.1007/s11837-017-2357-z},
journal = {JOM. Journal of the Minerals, Metals & Materials Society},
issn = {1047-4838},
number = 6,
volume = 69,
place = {United States},
year = {2017},
month = {4}
}
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