3D strain pattern in additively manufactured AlSi10Mg from digital volume correlation.

Xinyang   Gao; Yubin Zhang; Lasse Haahr-Lillevang; Nikolaj Kjelgaard Vedel-Smith; Tito Andriollo

doi:10.1016/j.heliyon.2023.e23186

3D strain pattern in additively manufactured AlSi10Mg from digital volume correlation.

Xinyang Gao, Yubin Zhang, Lasse Haahr-Lillevang, Nikolaj Kjelgaard Vedel-Smith, Tito Andriollo^*

^*Corresponding author for this work

Department of Mechanical and Production Engineering - Mechanics and Materials

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review

Abstract

Although much research has focused on AlSi10Mg processed via laser-based powder bed fusion, the material deformation mechanisms at the microscale are still unclear. To improve the current understanding, 3D measurements of the strain field at the microstructural scale are needed to complement surface-based SEM observations. This work demonstrates that X-ray tomography combined with digital volume correlation can be used to measure the strain in the bulk of AlSi10Mg using the Si-rich particles contained in the heat-treated microstructure as markers. The method allows for measuring strains larger than 0.5 % with a spatial resolution of 35 μm and it can thus be used to study the impact of factors like porosity distribution or crystallographic texture on the material deformation and damage mechanisms.

Original language	English
Article number	e23186
Journal	Heliyon
Volume	9
Issue	12
Number of pages	6
ISSN	2405-8440
DOIs	https://doi.org/10.1016/j.heliyon.2023.e23186
Publication status	Published - Dec 2023

Keywords

AlSi10Mg
Digital volume correlation
Heterogeneities
Laser-based powder bed fusion
Strain
X-ray tomography

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10.1016/j.heliyon.2023.e23186Licence: CC BY

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title = "3D strain pattern in additively manufactured AlSi10Mg from digital volume correlation.",

abstract = "Although much research has focused on AlSi10Mg processed via laser-based powder bed fusion, the material deformation mechanisms at the microscale are still unclear. To improve the current understanding, 3D measurements of the strain field at the microstructural scale are needed to complement surface-based SEM observations. This work demonstrates that X-ray tomography combined with digital volume correlation can be used to measure the strain in the bulk of AlSi10Mg using the Si-rich particles contained in the heat-treated microstructure as markers. The method allows for measuring strains larger than 0.5 % with a spatial resolution of 35 μm and it can thus be used to study the impact of factors like porosity distribution or crystallographic texture on the material deformation and damage mechanisms.",

keywords = "AlSi10Mg, Digital volume correlation, Heterogeneities, Laser-based powder bed fusion, Strain, X-ray tomography",

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AU - Gao, Xinyang

AU - Zhang, Yubin

AU - Haahr-Lillevang, Lasse

AU - Vedel-Smith, Nikolaj Kjelgaard

AU - Andriollo, Tito

PY - 2023/12

Y1 - 2023/12

N2 - Although much research has focused on AlSi10Mg processed via laser-based powder bed fusion, the material deformation mechanisms at the microscale are still unclear. To improve the current understanding, 3D measurements of the strain field at the microstructural scale are needed to complement surface-based SEM observations. This work demonstrates that X-ray tomography combined with digital volume correlation can be used to measure the strain in the bulk of AlSi10Mg using the Si-rich particles contained in the heat-treated microstructure as markers. The method allows for measuring strains larger than 0.5 % with a spatial resolution of 35 μm and it can thus be used to study the impact of factors like porosity distribution or crystallographic texture on the material deformation and damage mechanisms.

AB - Although much research has focused on AlSi10Mg processed via laser-based powder bed fusion, the material deformation mechanisms at the microscale are still unclear. To improve the current understanding, 3D measurements of the strain field at the microstructural scale are needed to complement surface-based SEM observations. This work demonstrates that X-ray tomography combined with digital volume correlation can be used to measure the strain in the bulk of AlSi10Mg using the Si-rich particles contained in the heat-treated microstructure as markers. The method allows for measuring strains larger than 0.5 % with a spatial resolution of 35 μm and it can thus be used to study the impact of factors like porosity distribution or crystallographic texture on the material deformation and damage mechanisms.

KW - AlSi10Mg

KW - Digital volume correlation

KW - Heterogeneities

KW - Laser-based powder bed fusion

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KW - X-ray tomography

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DO - 10.1016/j.heliyon.2023.e23186

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JO - Heliyon

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3D strain pattern in additively manufactured AlSi10Mg from digital volume correlation.

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Keywords

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