Microstructure and stress mapping in 3D at industrially relevant degrees of plastic deformation
(2024) In Scientific Reports 14(1).- Abstract
Strength, ductility, and failure properties of metals are tailored by plastic deformation routes. Predicting these properties requires modeling of the structural dynamics and stress evolution taking place on several length scales. Progress has been hampered by a lack of representative 3D experimental data at industrially relevant degrees of deformation. We present an X-ray imaging based 3D mapping of an aluminum polycrystal deformed to the ultimate tensile strength (32% elongation). The extensive dataset reveals significant intra-grain stress variations (36 MPa) up to at least half of the inter-grain variations (76 MPa), which are dominated by grain orientation effects. Local intra-grain stress concentrations are candidates for damage... (More)
Strength, ductility, and failure properties of metals are tailored by plastic deformation routes. Predicting these properties requires modeling of the structural dynamics and stress evolution taking place on several length scales. Progress has been hampered by a lack of representative 3D experimental data at industrially relevant degrees of deformation. We present an X-ray imaging based 3D mapping of an aluminum polycrystal deformed to the ultimate tensile strength (32% elongation). The extensive dataset reveals significant intra-grain stress variations (36 MPa) up to at least half of the inter-grain variations (76 MPa), which are dominated by grain orientation effects. Local intra-grain stress concentrations are candidates for damage nucleation. Such data are important for models of structure-property relations and damage.
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- author
- Henningsson, Axel LU ; Kutsal, Mustafacan ; Wright, Jonathan P. ; Ludwig, Wolfgang ; Sørensen, Henning Osholm ; Hall, Stephen A. LU ; Winther, Grethe and Poulsen, Henning Friis
- organization
- publishing date
- 2024-12
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Scientific Reports
- volume
- 14
- issue
- 1
- article number
- 20213
- publisher
- Nature Publishing Group
- external identifiers
-
- pmid:39215107
- scopus:85202752397
- ISSN
- 2045-2322
- DOI
- 10.1038/s41598-024-71006-0
- language
- English
- LU publication?
- yes
- id
- 994bb539-5f4d-4366-b86e-f531100f4b0c
- date added to LUP
- 2024-11-14 15:37:47
- date last changed
- 2025-07-12 01:08:57
@article{994bb539-5f4d-4366-b86e-f531100f4b0c,
abstract = {{<p>Strength, ductility, and failure properties of metals are tailored by plastic deformation routes. Predicting these properties requires modeling of the structural dynamics and stress evolution taking place on several length scales. Progress has been hampered by a lack of representative 3D experimental data at industrially relevant degrees of deformation. We present an X-ray imaging based 3D mapping of an aluminum polycrystal deformed to the ultimate tensile strength (32% elongation). The extensive dataset reveals significant intra-grain stress variations (36 MPa) up to at least half of the inter-grain variations (76 MPa), which are dominated by grain orientation effects. Local intra-grain stress concentrations are candidates for damage nucleation. Such data are important for models of structure-property relations and damage.</p>}},
author = {{Henningsson, Axel and Kutsal, Mustafacan and Wright, Jonathan P. and Ludwig, Wolfgang and Sørensen, Henning Osholm and Hall, Stephen A. and Winther, Grethe and Poulsen, Henning Friis}},
issn = {{2045-2322}},
language = {{eng}},
number = {{1}},
publisher = {{Nature Publishing Group}},
series = {{Scientific Reports}},
title = {{Microstructure and stress mapping in 3D at industrially relevant degrees of plastic deformation}},
url = {{http://dx.doi.org/10.1038/s41598-024-71006-0}},
doi = {{10.1038/s41598-024-71006-0}},
volume = {{14}},
year = {{2024}},
}