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Meeting 2017 TMS Annual Meeting & Exhibition
Symposium Pan American Materials Congress: Advanced Manufacturing
Presentation Title Combining CALPHAD-informed Phase-field Modeling with Rapid Solidification Experiments for Prediction of Microstructure Evolution during Laser-based Additive Manufacturing
Author(s) Aurelien Perron, John Roehling, Patrice E.A. Turchi, Jean-Luc Fattebert, Joseph McKeown
On-Site Speaker (Planned) Aurelien Perron
Abstract Scope The coupling of phase-field modeling (PFM) to thermodynamic and kinetic databases (CALPHAD methodology) is important for realistic parameterization of PFM. The present work aims at studying solidification in metallic alloys from “equilibrium” to far-from-equilibrium conditions to address the challenge of rapid-solidification processes encountered during laser-based additive manufacturing (AM). Modeling successes and challenges will be discussed and compared with experimental data. Experiments consist of laser surface melting and re-solidification in bulk alloys and in situ laser melting and rapid solidification in thin-film alloys. The latter approach, conducted in the dynamic transmission electron microscope (DTEM), permits to track the kinetics of the solidification front, and to monitor the microstructure evolution during solidification. This work was performed under the auspices of the U.S Department of Energy by Lawrence Livermore National Laboratory under contract DE-AC52-07NA27344. Work at LLNL was funded by the Laboratory Directed Research and Development Program under project tracking code 15-ERD-006.
Proceedings Inclusion? Planned: Stand-alone book in which only your symposium’s papers would appear (indicate title in comments section below)


Carbon Based Coatings Deposited on Nitrided Stainless Steel: Study of Thermal Degradation
Combining CALPHAD-informed Phase-field Modeling with Rapid Solidification Experiments for Prediction of Microstructure Evolution during Laser-based Additive Manufacturing
Comparative Mechanical Analysis between Epoxy Composite Reinforced with Random Short Cuarua Fibers and Aligned Long Curaua Fibers
Conceptual-Functional Model of Drilling Electrochemical Discharge Machining
Damage Evaluation of Impact by Low-speed on Fiberglass Composite with Laminates Aluminum 2024-T3
Deep Drilling in Soda-lime Glass Using Air Jet Assisted Electrochemical Discharge Machining (ECDM)
Effect of Tool Rotation on Tool Wear Phenomenon in Rotary Tool micro-USM
Finite Element Modelling of Current-activated, Pressure-assisted Densification (CAPAD): The Role of Materials Properties and Geometry on Thermal Gradients
Green Machining Process: Near-dry Electric Discharge Machining
Mechanisms and Influence of In-situ Pre-heating during Friction Welding
Microstructure-processing-property Relationships in Nanocrystalline Ceramics Produced Using Current-activated, Pressure-assisted Densification (CAPAD)
Numerical Modeling of High-Velocity Impact Welding
PAN-12: Influence of Dendritic Morphology on the Strain Field of Dendritic Solidification Structures
PAN-13: Microhardness Assessment of 316L Stainless Steel Fabricated by Laser Engineered Net Shaping
Reducing Radiation Exposure to the Rectum during Prostate Cancer Radiation Therapy using NiTi Shape Memory Alloy
Selective Laser Sintering of Polyamide/Hydroxyapatite Scaffolds
Sintering of Anisotropic Porous Microstructures
Tailoring the Mechanical Properties of Additively Manufactured Ti-6Al-4V Alloys by Post Processing

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