About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
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Symposium
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Additive Manufacturing: Advanced Characterization with Synchrotron, Neutron, and In Situ Laboratory-scale Techniques III
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Presentation Title |
Spatially Resolving Micro-/Nano- Structures in Bulk Additively Manufactured Parts by Neutron Grating Interferometry |
Author(s) |
Yuxuan Zhang, Erik Stringfellow, Hassina Bilheux, Jean Bilheux, Leslie Butler , Kyungmin Ham |
On-Site Speaker (Planned) |
Yuxuan Zhang |
Abstract Scope |
Neutron imaging is a non-destructive technique that can investigate the features/structures inside a bulk object. The neutron’s high penetration through metals and its high sensitivity to light elements (H, Li, etc.) has enabled the development of neutron imaging as a unique tool in many research fields. Recently, neutron grating interferometry (nGI) has been implemented at the Multimodal Advanced Radiography Station (MARS) at Oak Ridge National Laboratory (ORNL). Such technique enables the utilization of ultra-small angle neutron scattering signal as contrast. Therefore, the existence of cracks, voids, and porosity in a much smaller length scale (tens to hundreds of nanometers) can be spatially resolved in bulk materials, simultaneously with conventional attenuation contrast. This work will present recently developed neutron grating interferometry capabilities at ORNL. Demonstration work done on additively manufactured (AM) samples will also be presented. |
Proceedings Inclusion? |
Planned: |
Keywords |
Characterization, Additive Manufacturing, |