About this Abstract |
Meeting |
2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
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Symposium
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2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
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Presentation Title |
A Computational Study Summarizing the Effects of Composition on the Melt Pool Geometry in Additive Manufacturing |
Author(s) |
Daniel Gwynn, Sree Samhita Gundimeda, Nandana Menon, Amrita Basak |
On-Site Speaker (Planned) |
Nandana Menon |
Abstract Scope |
Thermophysical properties play a crucial role in controlling the evolution of melt pool dimensions in metal Additive Manufacturing (AM). It is, therefore, imperative to understand the impact of thermophysical properties on the melt pool dimensions for critical materials such as nickel-based superalloys. In this paper, a three-dimensional analytical model is used to predict the transient melt pool dimension over a range of process parameters for several nickel-based superalloys. The model is then interrogated to evaluate the effects of composition on the melt pool dimensions. The results show that the melt pool dimensions correlate well with the liquidus temperature, density, and thermal conductivity of the alloy. By exploring the impact of process variables and compositions on the melt pool dimension evolution, a framework can be established to maintain the desired melt pool dimensions during fabrication of functionally-graded parts with different alloys belonging to the same material class. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |