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Meeting 2024 TMS Annual Meeting & Exhibition
Symposium Additive Manufacturing: Process-induced Microstructures and Defects
Presentation Title F-38: Effect of Induction Heating Temperature on Inconel 718 Deposited by Induction-heating-assisted Laser-directed Energy Deposition
Author(s) Junmyoung Jang, Seung Hwan Lee
On-Site Speaker (Planned) Junmyoung Jang
Abstract Scope This study investigated the effect of induction heating temperature on the microstructure and mechanical properties of Inconel 718 deposited by induction-heating-assisted laser-directed energy deposition(IH-A LDED). In the IH-A LDED, the temperature of the deposit is maintained at a desired temperature using the induction heater. As the thermal profile of the deposit during the deposition determines the precipitation of the secondary phases, the temperature maintained by the induction heater directly affects the resulting microstructure. In order to investigate the effect of the induction heating according to the maintaining temperature, as-deposits were fabricated with maintaining the temperature at aging, solution, and homogenization, respectively. For each deposit, the SEM analysis was performed to compare the precipitates. In addition, the grain morphology of each was analyzed using EBSD to compare the resulting columnar grains. Furthermore, the mechanical properties of the deposits were compared using tensile testing and nanoindentation-based creep testing.
Proceedings Inclusion? Planned:
Keywords Additive Manufacturing, Characterization, Mechanical Properties

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F-34: Characterization of Microstructure and Defects in a CrMnFeCoNi High-Entropy Alloy Processed by Multi-Beam Laser Directed Energy Deposition
F-35: Characterization of Surface Integrity and Mechanical Properties in XM-19 Alloy Manufactured by Powder Bed Fusion with Various Process Parameters
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F-38: Effect of Induction Heating Temperature on Inconel 718 Deposited by Induction-heating-assisted Laser-directed Energy Deposition
F-39: Effects of Low-temperature Heat Treatment on Mechanical and Thermophysical Properties of Cu-10Sn Alloys Fabricated with Laser Powder Bed Fusion
F-40: Evolution of Precipitate Structure and Composition as a Function of Heat Input for Additive Friction Stir Deposition of AA7050
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F-45: Microstructural Evolution and Anisotropy in Stainless Steel 316L from Wire Arc Additive Manufacturing
F-46: Microstructure and Mechanical Characterization of AISI 4340 Steel Additively Manufactured by Laser Powder Bed Fusion
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