About this Abstract |
Meeting |
2024 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2024)
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Symposium
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2024 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2024)
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Presentation Title |
Effects of SiC Reinforced Particles on Melt Pool Dynamics and Porosity Formation in Directed Energy Deposition of SS 316L Metal Matrix Composites |
Author(s) |
Wenhao Zhang, Yi Zhao, Yue Zhou |
On-Site Speaker (Planned) |
Wenhao Zhang |
Abstract Scope |
Understanding the heat and mass transfer mechanisms within a melt pool in additive manufacturing (AM) is of significance for process and performance control. In AM of metal matrix composites (MMCs), the underlying melt pool dynamics are challenging to be revealed due to different material properties and intricate physical interactions; however, the related investigations are still limited. This study introduces an advanced computational fluid dynamics (CFD) model designed to simulate melt pool dynamics and porosity formation in directed energy deposition (DED) additive manufacturing of SiC-reinforced stainless steel (SS) 316L materials. In particular, the effects of SiC content on melt pool oscillation and temperature as well as solidification are studied. In addition, the relationship between thermal variation and porosity formation in DED of MMC process is uncovered. Insights from this study help refine the process parameters, enhancing the performance of DED-built composite parts. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |