About this Abstract |
Meeting |
2024 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2024)
|
Symposium
|
2024 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2024)
|
Presentation Title |
Understanding Microstructure and Oxide Distribution in ODS Steels through Thermodynamic Simulations and Melt Pool Analysis in LPBF Processes |
Author(s) |
Sourabh Saptarshi, Matthew deJong, Iver Anderson, Ralph Napolitano, Christopher Rock, Djamel Kaoumi, Timothy Horn |
On-Site Speaker (Planned) |
Sourabh Saptarshi |
Abstract Scope |
Laser powder bed fusion (LPBF) additive manufacturing (AM) offers a promising method for producing near net shaped oxide dispersion strengthened (ODS) steels, which are notable for their excellent high-temperature mechanical properties. Through thermodynamic simulations and melt pool analysis, the study aims to predict and examine the microstructure of 14YWT ODS Gas Atomization Reaction Synthesis (GARS) steels processed via LPBF. These analyses are vital for optimizing LPBF parameters and understanding the material's thermal behavior during rapid solidification and cooling which in turn affects the oxide growth and distribution. Thermal modeling plays a crucial role in this context, helping to predict and control the microstructure, particularly for down-facing surfaces that are susceptible to defects during fabrication. By adjusting process parameters like laser power, scanning speed, and layer thickness, the study aims to manage the temperature profiles during solidification effectively, ensuring uniform microstructure and tailored mechanical properties for high-temperature applications. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |