About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
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Additive Manufacturing of Metals: Applications of Solidification Fundamentals
|
Presentation Title |
Analysis of Functionally Grade Materials Printing via Direct Energy Deposition Using Thermodynamic and Physical Simulation |
Author(s) |
Jorge Valilla, Damien Tourret, Ilchat Sabirov |
On-Site Speaker (Planned) |
Jorge Valilla |
Abstract Scope |
Additive manufacturing of metallic materials enables manufacturing of functionally graded materials (FGMs) that show a gradual change in composition within a part. This comes as a great option when dealing with dissimilar joints or to create location-specific properties. Here, we investigate material compatibility and explore processing parameters for parts graded from a stainless steel 316L and a Ni-based superalloy IN718 by combining: (1) advanced characterization (SEM, EDX, EBSD, micro-hardness) of quality, microstructure and properties of graded samples manufactured by direct energy deposition (DED); (2) computational thermodynamics (CalPhaD) exploration of phase diagrams and assessment of thermal properties along the material gradient; and (3) original physical simulations (Gleeble 3800) to investigate material compatibility and diffusion at the interface. This study explores fundamental mechanisms of microstructure selection and properties in metallic FGMs and investigates the appearance of defects, e.g. (micro-)cracks, and phases/constituents in specific regions of the compositional gradient. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, Solidification, Joining |