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Meeting 2021 TMS Annual Meeting & Exhibition
Symposium Additive Manufacturing for Energy Applications III
Presentation Title Porosity in Metal Additive Manufacturing: X-ray Tomography Insights
Author(s) Anton du Plessis
On-Site Speaker (Planned) Anton du Plessis
Abstract Scope Porosity in metal additive manufacturing is a concern and occurs widely in many different forms and in different distinctive 3D distributions. In this regard, X-ray tomography is well suited to quantify pore morphologies, 3D distributions, and holistically quantify this porosity. It can be used to forensically analyse the mechanism behind the porosity formation and hence can be used to optimize the process parameters. Insights from X-ray tomography may extend to a better understanding of the porosity formation, as well as the effect of porosity on mechanical properties through “time-lapse” non-destructive imaging of pores in mechanical tests. In this talk I will demonstrate a variety of examples where X-ray tomography provides insights as those described above. Finally, the challenges and limitations will be discussed particularly with regards to sample size, material, limits on X-ray penetration, image quality and post-processing of X-ray tomography data.
Proceedings Inclusion? Planned:

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

A Review of Solution Based Processing Routes for Advanced Nuclear Fuel Materials
Additive Manufacturing of Nuclear Spacer Grids using Inconel 718 Alloy: Observed Distortion and Proposed Distortion Control Measures for Thin Walled Structures
Additive Manufacturing of Zr-modified Aluminum Alloy 6061 by Laser-powder Bed Fusion
Advances in Digital Light Printing for Energy Applications
Aid of Additive Manufacturing of 2D Materials for Miniaturization
Cold Spray Chromium Deposition for Accident Tolerant Fuel Cladding
Cold Spray Mitigation of Chloride-induced Stress Corrosion Cracking in Austenitic Stainless Steel Welds
Cold Spray Stainless Steel Deposition to Mitigate CISCC in Canisters for Used Nuclear Fuel Storage
Combining Modelling and Microstructural Studies in Explaining the Laser Parameter Effect on Superalloy Cracking during Selective Laser Melting
Defect Analysis in Selectively Laser Melted Parts via Surface Topography Characterization
Densification of Binder Jetted Tungsten through Chemical Vapor Infiltration for Fusion Energy Application
Detection of Defects in Additively Manufactured Metals Using Thermal Tomography
Development of Additive Manufacturing Processes for Embedding Thermocouples during Directed Energy Deposition
Effect of Cold Rolling on the Microstructure and the Mechanical Properties of 316L Stainless Steel Parts Produced by Laser Powder Bed Fusion (LPBF)
Effective Thermal Conductivity of Additively Manufactured Metal Matrix Composite
Effects of Void Configuration on the Overall Thermal and Mechanical Behavior of Porous Materials: A Numerical Modeling Approach
Efficient Production of a High-performance Dispersion Strengthened, Multi-principal Element Alloy
Elevated Temperature Dip in Tensile Elongation of an Additively Manufactured Al-Cu-Ce Alloy
Evaluation of Oxide Dispersion Strengthened (ODS) Steel Fuel Cladding Tubes Manufactured by Cold Spray Technology
Experimental and Numerical Investigation of Single Clads Generated by Directed Energy Deposition Additive Manufacturing Processes
Experimental Fabrication of Porous Additive Manufactured Material
From Flight to Fission: Additive Manufacturing Advances at GE in Nuclear Energy
Functional Advanced Printings for Nuclear In-pile Sensing
Harnessing a High Energy, Superconducting Electron Beam for Additive and Far-from-Equilibrium Manufacturing
Investigation of the Effect of Laser Energy Density on Properties of Additively Manufactured Tungsten Lattices
Laser Additive Manufacturing of Grade 91 Steel for Affordable Nuclear Reactor Components with Improved Radiation Tolerance
Laser Powder Bed Fusion of Grade 300 Maraging Steel for Tooling Applications
Metal Additive Manufacturing for Energy Industries
Microstructural Stability and Creep Behavior of an Additively Manufactured Al-Ce-Ni-Mn Alloy
Microstructure-property of a Novel 9Cr Ferritic Martensitic Steel via Additive Manufacturing Directed Energy Deposition
Microstructure and Properties Comparison for 316L Wire-fed Laser Metal Deposition AM Under Vacuum Conditions
Multi-scale Multi-fidelity Metamodeling for Advanced Materials
Novel Aspects of multi-Wire Arc Additive Manufacturing for Large Component Fabrication for Extreme Environments and New Alloy Discovery
Numerical Study to Predict the Effect of Surface Roughness on the Thermal and Hydraulic Performance of Additively Manufactured Heat Exchangers
On the In-situ Formation of Nano Oxides during Laser Powder Bed Fusion as a Function of Steel Chemistry and Atmospheric Oxygen Level
Porosity in Metal Additive Manufacturing: X-ray Tomography Insights
Process-induced History Effects on the Creep Behavior of Additively Manufactured IN718 Alloys
Quality Evaluation of As-printed Wire Arc Additively Manufactured 316L Stainless Steel Blocks
Real Time Non-destructive Evaluation during 3D Manufacturing of Metal Parts
Tailored Radiation Responses of 9-12 wt.% Cr Steels Through Additive Manufacturing
The Effect of Grain Orientation on Nanoindentation Behavior of Selective Laser Melted Austenitic Stainless Steel
Toward Part Qualification: Thermal Signature Analysis Using Wavelet Transform in Metal Additive Manufacturing

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