Investigation of dynamic fracture behavior of additively manufactured Al-10Si-Mg using high-speed synchrotron X-ray imaging

Niranjan D. Parab; Lianghua Xiong; Qilin Guo; Zherui Guo; Cody Kirk; Yizhou Nie; Xianghui Xiao; Kamel Fezzaa; Wesley Everheart; Weinong W. Chen; Lianyi Chen; Tao Sun

doi:10.1016/j.addma.2019.100878

Investigation of dynamic fracture behavior of additively manufactured Al-10Si-Mg using high-speed synchrotron X-ray imaging

Niranjan D. Parab^*, Lianghua Xiong, Qilin Guo, Zherui Guo, Cody Kirk, Yizhou Nie, Xianghui Xiao, Kamel Fezzaa, Wesley Everheart, Weinong W. Chen, Lianyi Chen, Tao Sun

^*Corresponding author for this work

Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

29 Scopus citations

Abstract

The dynamic tensile properties of additively manufactured (AM) and cast Al-10Si-Mg alloy were investigated using high-speed synchrotron X-ray imaging coupled with a modified Kolsky bar apparatus. A controlled tensile loading (strain rate ≈ 750 s⁻¹) was applied using the Kolsky bar apparatus and the deformation and fracture behavior were recorded using the high-speed X-ray imaging setup. The synchrotron X-ray computed tomography (CT) and high-speed imaging results worked together to identify the location of the critical flaw and to capture the dynamics of crack propagation. In all experiments, the critical flaw was located on the surface of each specimen. The AM specimens showed significantly higher crack propagation speed, yield strength, ultimate tensile strength, strain hardening coefficient, and yet lower ductility compared to the cast specimens under dynamic tension. Although the strength values were higher for the AM specimens, the critical mode I stress intensity factors were comparable for both specimens. The microstructures of the samples were characterized by CT and scanning electron microcopy. The correlation between the dynamic fracture behavior of the samples and the microstructure of the samples is analyzed and discussed.

Original language	English (US)
Article number	100878
Journal	Additive Manufacturing
Volume	30
DOIs	https://doi.org/10.1016/j.addma.2019.100878
State	Published - Dec 2019

Funding

This work is funded by Honeywell Federal Manufacturing & Technologies (FM&T), National Science Foundation (NSF, CMMI-1562543), University of Missouri Research Board (UMRB) , and Intelligent Systems Center at Missouri S&T . The authors would like to thank Alex Deriy at the APS for his help on the beamline experiments. This research used resources of the Advanced Photon Source, a U.S. Department of Energy Office of Science User Facility operated for the DOE Office of Science by Argonne National Laboratory under Contract No. DE-AC02–06CH11357. This work is funded by Honeywell Federal Manufacturing & Technologies (FM&T), National Science Foundation (NSF, CMMI-1562543), University of Missouri Research Board (UMRB), and Intelligent Systems Center at Missouri S&T. The authors would like to thank Alex Deriy at the APS for his help on the beamline experiments. This research used resources of the Advanced Photon Source, a U.S. Department of Energy Office of Science User Facility operated for the DOE Office of Science by Argonne National Laboratory under Contract No. DE-AC02?06CH11357.

Keywords

Al-10Si-Mg
Fracture
High-speed X-ray imaging
Kolsky bar
Laser powder bed fusion

ASJC Scopus subject areas

Biomedical Engineering
General Materials Science
Engineering (miscellaneous)
Industrial and Manufacturing Engineering

UN SDGs

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

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10.1016/j.addma.2019.100878

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@article{786fcd52a1bb47da8e897e01f148d28b,

title = "Investigation of dynamic fracture behavior of additively manufactured Al-10Si-Mg using high-speed synchrotron X-ray imaging",

abstract = "The dynamic tensile properties of additively manufactured (AM) and cast Al-10Si-Mg alloy were investigated using high-speed synchrotron X-ray imaging coupled with a modified Kolsky bar apparatus. A controlled tensile loading (strain rate ≈ 750 s−1) was applied using the Kolsky bar apparatus and the deformation and fracture behavior were recorded using the high-speed X-ray imaging setup. The synchrotron X-ray computed tomography (CT) and high-speed imaging results worked together to identify the location of the critical flaw and to capture the dynamics of crack propagation. In all experiments, the critical flaw was located on the surface of each specimen. The AM specimens showed significantly higher crack propagation speed, yield strength, ultimate tensile strength, strain hardening coefficient, and yet lower ductility compared to the cast specimens under dynamic tension. Although the strength values were higher for the AM specimens, the critical mode I stress intensity factors were comparable for both specimens. The microstructures of the samples were characterized by CT and scanning electron microcopy. The correlation between the dynamic fracture behavior of the samples and the microstructure of the samples is analyzed and discussed.",

keywords = "Al-10Si-Mg, Fracture, High-speed X-ray imaging, Kolsky bar, Laser powder bed fusion",

author = "Parab, \{Niranjan D.\} and Lianghua Xiong and Qilin Guo and Zherui Guo and Cody Kirk and Yizhou Nie and Xianghui Xiao and Kamel Fezzaa and Wesley Everheart and Chen, \{Weinong W.\} and Lianyi Chen and Tao Sun",

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year = "2019",

month = dec,

doi = "10.1016/j.addma.2019.100878",

language = "English (US)",

volume = "30",

journal = "Additive Manufacturing",

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T1 - Investigation of dynamic fracture behavior of additively manufactured Al-10Si-Mg using high-speed synchrotron X-ray imaging

AU - Parab, Niranjan D.

AU - Xiong, Lianghua

AU - Guo, Qilin

AU - Guo, Zherui

AU - Kirk, Cody

AU - Nie, Yizhou

AU - Xiao, Xianghui

AU - Fezzaa, Kamel

AU - Everheart, Wesley

AU - Chen, Weinong W.

AU - Chen, Lianyi

AU - Sun, Tao

PY - 2019/12

Y1 - 2019/12

N2 - The dynamic tensile properties of additively manufactured (AM) and cast Al-10Si-Mg alloy were investigated using high-speed synchrotron X-ray imaging coupled with a modified Kolsky bar apparatus. A controlled tensile loading (strain rate ≈ 750 s−1) was applied using the Kolsky bar apparatus and the deformation and fracture behavior were recorded using the high-speed X-ray imaging setup. The synchrotron X-ray computed tomography (CT) and high-speed imaging results worked together to identify the location of the critical flaw and to capture the dynamics of crack propagation. In all experiments, the critical flaw was located on the surface of each specimen. The AM specimens showed significantly higher crack propagation speed, yield strength, ultimate tensile strength, strain hardening coefficient, and yet lower ductility compared to the cast specimens under dynamic tension. Although the strength values were higher for the AM specimens, the critical mode I stress intensity factors were comparable for both specimens. The microstructures of the samples were characterized by CT and scanning electron microcopy. The correlation between the dynamic fracture behavior of the samples and the microstructure of the samples is analyzed and discussed.

AB - The dynamic tensile properties of additively manufactured (AM) and cast Al-10Si-Mg alloy were investigated using high-speed synchrotron X-ray imaging coupled with a modified Kolsky bar apparatus. A controlled tensile loading (strain rate ≈ 750 s−1) was applied using the Kolsky bar apparatus and the deformation and fracture behavior were recorded using the high-speed X-ray imaging setup. The synchrotron X-ray computed tomography (CT) and high-speed imaging results worked together to identify the location of the critical flaw and to capture the dynamics of crack propagation. In all experiments, the critical flaw was located on the surface of each specimen. The AM specimens showed significantly higher crack propagation speed, yield strength, ultimate tensile strength, strain hardening coefficient, and yet lower ductility compared to the cast specimens under dynamic tension. Although the strength values were higher for the AM specimens, the critical mode I stress intensity factors were comparable for both specimens. The microstructures of the samples were characterized by CT and scanning electron microcopy. The correlation between the dynamic fracture behavior of the samples and the microstructure of the samples is analyzed and discussed.

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KW - Fracture

KW - High-speed X-ray imaging

KW - Kolsky bar

KW - Laser powder bed fusion

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Investigation of dynamic fracture behavior of additively manufactured Al-10Si-Mg using high-speed synchrotron X-ray imaging

Abstract

Funding

Keywords

ASJC Scopus subject areas

UN SDGs

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