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Meeting 2023 TMS Annual Meeting & Exhibition
Symposium Advanced Real Time Imaging
Presentation Title L-9: In-situ Magnetic Computed Tomography for Additive Manufacturing
Author(s) Bhairav Ramanathan
On-Site Speaker (Planned) Bhairav Ramanathan
Abstract Scope X-ray computed Tomography (CT) scanning has been the method of choice to scan additively manufactured parts to identify internal features and defects without resorting to destructive exploratory methods. The X-ray CT process can take hours to days to yield a single reconstructed image which causes huge research bottlenecks. To remedy this shortcoming of X-ray physics, the authors propose a novel magnetic CT system which can scan parts in around 2 minutes. The system consists of a square wave driven magnetic coil and a hall effect sensor which are on either side of the part to be imaged. This project makes use of an Okuma Multus mill-turn machine to perform a 360-degree rotation of the part (clamped in the lathe chuck) and incrementally moves the hall effect sensor in a grid pattern to form each two-dimensional image. The authors will present their work on Magnetic CT for various materials and geometries.
Proceedings Inclusion? Planned:
Keywords Characterization, Additive Manufacturing, Modeling and Simulation

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

4D Microstructural Evolution of Bismuth (Bi) Phase during Solidification of Sn-58Bi Solder
Behavior of Plastic Ashes in Gasification Environments
Energy Absorption Properties of Open-Cell Rhombic Dodecahedron Cellular Lattice Structures Under Shock Compression
Estimation of Interfacial Strain Response for a Bi-material Strip in Tensile and Shear Loading Using THz-TDS
High-Temperature Wetting of Calcium Alloys and Molten Salts
In-situ Monitoring and Post Operando Analysis of Additively Manufacturing Lunar Regolith Simulants Parts
In-situ TEM Study of Rapidly Solidifed AlCuLi Based Alloys
In-situ Visualization of Retrograde Melting Phenomenon During Solidification of Boron-bearing Steels
L-9: In-situ Magnetic Computed Tomography for Additive Manufacturing
Machine Learning for In-situ Detection of Local Heat Accumulation in Additive Manufacturing
Mapping the Melt Pool Variability in L-PBF Additive Manufacturing by High-Speed Imaging
Microstructure Evolution during Laser-based Powder Bed Fusion Studied by Operando X-ray Radiography
Prediction of Laser Absorptivity from Synchrotron X-ray Images Using Deep Convolutional Neural Networks
Real-time Plasmon-Enhanced Colorimetric Imaging
Real Time Imaging of Laser Melting and Re-Solidification
Recent Advances in Ultrafast Real-time Imaging of Sonoprocessing Advanced Materials
Study of Fracture Behaviors of Epoxy-Alumina Composite Using Mechanical Testing Coupled with Micro-CT
The Influence of Temperature on Strength: Are Concentrated BCC Alloys Different than Elements and Dilute Alloys?
Thermal Stability of fcc-bcc Nanolaminates Containing 3D Interfaces
Three-dimensional Assessment of Strain Localization at the Sub-grain Level of a Ni-based Superalloy at Low and High Temperature Using Laser Scanning Confocal Microscopy
Visualization of Molten Slag Suspension by Electrical Impedance Tomography

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