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Meeting 2020 TMS Annual Meeting & Exhibition
Symposium Additive Manufacturing: Advanced Characterization with Synchrotron, Neutron, and In Situ Laboratory-scale Techniques
Presentation Title A-40: Strengthening Effect and Thermal Stability of Sub-grain Solidification Structures in L-PBF Stainless Steel 316L
Author(s) Thomas Voisin, Jean-Baptiste Forien, Y. Morris Wang
On-Site Speaker (Planned) Thomas Voisin
Abstract Scope 316L stainless steels (316L SS) made via the laser powder bed fusion (L-PBF) technique has shown an outstanding combination of high strength and ductility. Using a suite of in situ and post mortem characterization techniques such as TEM, SEM/EBSD, high energy XRD we investigate the effect of the sub-grain solidification cells and precipitates on the tensile properties and the their thermal stability up to 1200C. We observe a drop in strength at annealing temperatures above 600C, when sub-grain structures become unstable. This work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344.
Proceedings Inclusion? Planned: Supplemental Proceedings volume

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

3D Printing, Porosity, Synchrotron Experiments and Machine Learning
4D Nanoscale Imaging of Powder Feedstock Processing for Additive Manufacturing
A-18: HEX, A New High Energy Beamline in the Making
A-19 (Invited): The Effects of Chemical Composition on Precipitate Evolution in an Additively Manufactured Nickel Base Superalloy
A-20: Accessing Nano-scale Structure and Dynamics During 3D-Printing by Operando X-Ray Photon Correlation Spectroscopy
A-21: Building a Novel Heat Exchanger with Haynes 230 Alloy and Using Data Science to Characterize Rheological and Microstructural Properties in Additive Manufacturing
A-22: Characterizing the Deformation in Single Cell Ti-5553 Lattice Structures
A-23: Creep Behavior of a AlSiMg Alloy Produced by Additive Manufacturing
A-24: Effect of Laser-matter Interaction on Molten Pool Flow and Keyhole Dynamics
A-25: Evaluating the Effectiveness of Compliant Substructures at Controlling Residual Stress in Additively Manufactured Components
A-26: High Speed X-ray Diffraction
A-27: Identifying the Formation of Laser Powder Bed Fusion Defects In-situ by Coupling High Speed X-ray and Infra-red Imaging
A-28: In-situ Characterization and Quantification of Melt Pool Variation Under Constant Input Energy Density in Laser Powder-bed Fusion Additive Manufacturing Process
A-29: In-situ Full-field Mapping of Melt Flow Dynamics in Laser Metal Additive Manufacturing
A-30: In-situ X-ray Characterization of Keyhole Dynamics in Laser-based Additive Manufacturing of Aluminium Alloys
A-31: Influence of Alloy Composition on Cell Formation in Additively Manufactured Stainless Steels
A-32: Influence of Powder Recyclability on the Defect Density of Components Fabricated with Nickel-based Alloys Characterized with Micro X-ray CT
A-33: Investigating the Behavior of Ti-5553 Octet Lattice Wedges Under Compression
A-34: Laser Additive Manufacturing of Dissimilar Metals
A-35: Measurements and Predictions of Residual Stresses in AM Ti-6Al-4V NIST Challenge Specimens
A-36: Microstructural Development and Mechanical Properties of Selective Laser Melted Co-Cr-W Dental Alloy
A-37: Real Time Observation of Binder Jetting Printing Process Using High-speed X-ray Imaging
A-38: Residual Strain Gradients in Thin Walled Additively Manufactured Stainless Steel Pressure Vessels
A-39: Residual Stress Measurement Techniques for Additive Manufacturing Parts
A-40: Strengthening Effect and Thermal Stability of Sub-grain Solidification Structures in L-PBF Stainless Steel 316L
A Machine-Agnostic Approach to Layer-wise Process Monitoring and Control of Powder Bed Additive Manufacturing Technologies
Advanced Techniques for Characterization of SLM Manufactured Alumina
Capturing Marangoni Flow via Synchrotron Imaging of Laser Blown Powder Directed Energy Deposition
Capturing Pore Formation During Laser Blown Powder Directed Energy Deposition
Coherent Scanning Interferometry for Characterization of Recycled Metal Powder and Reusability Assessment in Additive Manufacturing
Combining Atom-probe Tomography and Synchrotron Methods to Investigate In-situ Precipitation in AM-produced Alloys
Correlation of Melt Strategy Parameters to Solidification Variables During Laser Fusion Processing of Ti-6Al-4V Alloy: An In-situ Dynamic Synchrotron X-ray Radiography Study
Detection of Early Crack Formation of Fatigued, Additively Manufactured Stainless Steel Using Neutron Dark-field Imaging
Geometric Influences on Residual Stresses in Components Manufactured by Directed Energy Deposition
High-speed X-ray Imaging of Powder Deposition of Composite Materials in Additive Manufacturing
High Speed Video of the Influence of Preheating on Tungsten Microcracking During Laser Scanning
In-line Powder Packing Density Analysis During Selective Laser Melting
In-process Monitoring of Porosity in Additive Manufacturing
In-situ 3D Digital Image Correlation and Thermal Imaging for Process Monitoring in Laser Directed Energy Deposition (L-DED)
In-situ and Operando X-ray Imaging of the Laser Blown Powder Directed Energy Deposition Process
In-situ Characterization of Laser Additive Manufacturing Process Using High-speed Synchrotron X-ray Diffraction
In-situ Measurement of the Kinetics of Homogenization and Aging Treatments in A205 Alloy Produced Through Additive Manufacturing
In-situ Process Monitoring and Diagnosis via Machine Learning of Thermal Imaging Streams
In-situ Synchrotron Measurements of Microstructure Development at Fusion Boundary in Wire Feed AM of Ti-6Al-4V
In-situ TEM Heating Experiments to Study the Effect of Thermal Gradients on Additively Manufactured Ti-6Al-4V Builds
In-situ TEM Thermal Cycling of AM Steel
In-situ X-ray, IR, and Diffraction Measurements of Automotive Grade Steel During Laser Powder Bed Fusion
In Operando Characterization of 3D Printed Composite Resins via X-ray Photon Correlation Spectroscopy and SAXS
In Operando X-ray Diffraction during Laser 3D Printing
Investigating Local Microstructural Response During Short Fatigue Crack Growth in SLM IN718 Subjected to High Cycle Fatigue Loading
Investigating the Mechanics of Additively Manufactured Materials Using Neutron Diffraction
Microscale Residual Stresses in Additively Manufactured Stainless Steel
Microstructure Development in Laser Powder Bed Fusion of Superalloys via Synchrotron Radiography and TriBeam Tomography
Multi-physics Modeling of Fluid and Powder Dynamics in Laser Powder Bed Fusion Process
Neutron-based Research on Additive Manufactured Materials at the Paul Scherrer Institute
Non-destructive Quality Evaluation of Additively Manufactured Metal Components
Observing the Phase Evolution During Selective Laser Melting of a High-Fe β-Ti Alloy from Elemental Powders via In-Situ Synchrotron X-Ray Diffraction
On In-situ Monitoring of Geometry, Temperature, and Plume Behavior in Laser-based, Powder-blown Directed Energy Deposition Additive Manufacturing
Porosity Formation and Entrapment in Directed Energy Deposition Through Highspeed In-situ Imaging
Practical Use of Neutron Facility VULCAN and NRSF2 for Residual Stress Analysis of Additive Manufactured Large Automobile Parts
Quantification of the Effects of Deposition Parameters and Particle Size Distribution on Spatter Formation in Laser Powder Bed Fusion
Quantifying Defect Signatures in Metal Additive Manufacturing Using In-situ Diagnostics
Quantitatively Revealing the Dynamics of Laser Powder Bed Fusion Additive Manufacturing Process by In-situ High-speed X-ray Imaging and Diffraction
Rapid Characterization of AM Components for Alloy Design and Process Optimization
Residual Strain Characterization of Additively Manufactured IN625 and 15-5SS Using Energy Dispersive X-ray Diffraction
Sensor Enabled Material Optimization in Powder Bed Fusion Additive Manufacturing
Simultaneous High-speed Measurements of Laser Absorptance and Melt Pool Geometry in Metal Powder Bed Systems
Study of Gas Entrapment and Its Effects on Porosity in 17-4 PH Atomized Powder Laser Powder Bed Fusion (LPBF) Parts
The Important Contribution of Synchrotron X-ray and Neutron Measurements to Metal Additive Manufacturing Benchmarks
The Influence of Laser Modulation on Melt Pool Behavior in Laser Powder Bed Fusion Probed with In-situ X-ray Imaging
Thermomechanical Model Residual Stress Prediction Assessment for Stainless Steel 316L Laser Powder Bed Fusion Components
Toward Validation of Residual Stress Predictions in Additively Manufactured Parts: Destructive and Non-destructive Characterization
Unsupervised Learning Applied to Powder Metals for Additive Manufacturing
Unsupervised Learning of Dislocation Motion
Using High Energy X-ray Diffraction to Probe Additively Manufactured Metals over a Range of Length and Time Scales
Utilization of Backscattered Electrons for Process Monitoring During Electron Beam Melting
In-situ Synchrotron X-ray Imaging of Titanium Alloy Powder Sintering during Laser Blown Powder Directed Energy Deposition
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