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Meeting 2022 TMS Annual Meeting & Exhibition
Symposium Powder Materials Processing and Fundamental Understanding
Presentation Title Rapid Solidification Behavior of Cast Ni-based Superalloy IN-100 by EBM Process
Author(s) Yusaku Hasebe, Takehito Hagisawa, Satoru Ohsaki, Kazuya Kubo, Cheng Yang, Kenta Aoyagi, Kenta Yamanaka, Akihiko Chiba
On-Site Speaker (Planned) Yusaku Hasebe
Abstract Scope Rapid solidification behavior of cast Ni-based superalloy IN-100 was investigated by using electron beam melting (EBM) process. Arcam A2X was used for the single bead experiments, and 30 single scans of electron beam with various beam power and speeds were scanned on the plate pre-heated to 1323K under 210-3 mbar of He atmosphere after evacuation. Melt pool depth and width were increased with increasing current and decreasing scan speed. Electron backscatter diffraction (EBSD) analysis revealed that epitaxial growth with the crystal orientation of the underlying substrates was observed when the melt pool is shallow. With increasing the melt pool depth, columnar grain nucleation got dominated with regardless crystal orientation of substrate. Computational fluid dynamics (CFD) simulation was performed considering the experimental results, then evaluated columnar-equiaxed transition of the alloy based on the theory of dendritic growth.
Proceedings Inclusion? Planned:
Keywords Additive Manufacturing, Solidification, Copper / Nickel / Cobalt

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Analysis of Additive Manufacturing Powders' Behaviors Using Discrete Element Method-based Simulation
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Effect of Powder Reuse on Mechanical Behavior of Additively Manufactured Ti-6Al-4V
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From Ultrafast Sintering with and without Electric Fields to Electrochemically Controlled Microstructural Evolution
Gravitation Effects on Sintering
Gravity-affected Sintering of 3D-printed Powder Components
Inconel 718 Contamination in Ti6Al4V during Powder Bed Fusion
Influence of Powder Reuse in LPBF on the Attributes of SS316L Particles and Powder Beds
Investigating Particle Size-shape Effects on Flowability and Moisture Content of Metallic Powders after Environmental Exposure for Additive Manufacturing Applications
J-47: Induction Sintering of Copper-chromium Powders at Low-pressure Environment
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NOW ON-DEMAND ONLY - Optical Analysis of Powder Oxygen Content in Metal Powder Bed Fusion
Particle-based Nanostructured Ceramics for Tailored Functional and Mechanical Properties
Particle Packing in Powder Spreading for Selective Laser Melted Additive Manufacturing Using the Discrete Element Method
Powder Metallurgy Fabrication of ZrHx Moderator and U-ZrHx Moderated Nuclear Fuel
Rapid Solidification Behavior of Cast Ni-based Superalloy IN-100 by EBM Process
Rapid Solidification of Ultrasonically Atomised Aluminium Melt
Redox Chemistry of Surface-engineered CeO2 Nanocrystals: Catalytic and Electrochemical Applications
Silicon Oxycarbide Coatings on Zirconia Microspheres Using a Fluidized Bed Coating Process
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Sintering Based Production of Complex Shapes by the Coupling of Additive Manufacturing and Spark Plasma Sintering
Stable Temperature Regulation in Spark Plasma Sintering Simulations
Surface Chemistry Changes Resulting from Ti-6Al-4V Feedstock Powder Reuse in Electron Beam Additive Manufacturing
Surface Modification of Micro Powders Using Plasma-based Reactors for Sintering of Copper-Chromium Alloys
Synchrotron X-ray Imaging of Cracking during Laser Powder Bed Fusion (LPBF) of Aged CM247 Powder with Varying Oxygen Content
Synthesis and Consolidation of CoCr+X (X=SiC or WC) Milled Powder for Additive Manufacturing
The Effects of Melt Pool Geometry on Microstructure Development during Additive Manufacturing
Transparent Al2O3 Fabricated by Energy Efficient Spark Plasma Sintering
Understanding Mechanisms Behind Morphological Changes in Gas Atomized Powders after Laser Irradiation
Understanding of Agglomeration and Chemical Reactions of CoAl2O4 Inoculants in IN718 Processed by Selective Laser Melting
Understanding Powder Morphology and Its Effect on Flowability in Additive Manufacturing through Machine Learning Techniques
Understanding Surface Roughness on Vertical Walls in Laser Powder Bad Fusion Additive Manufacturing

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