About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
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Symposium
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Additive Manufacturing: Length-Scale Phenomena in Mechanical Response
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Presentation Title |
High-Throughput Microstructure Design of Laser Powder Bed Fusion SS316L |
Author(s) |
Janith C. Wanni, Dan J Thoma |
On-Site Speaker (Planned) |
Janith C. Wanni |
Abstract Scope |
The ability to control microstructures in real-time during the powder bed fusion (PBF) process facilitates the qualification of parts for application-specific property requirements. This study aims to define a predictive robust process-structure-property (PSP) relationship for PBF SS316L by using high-throughput experimental microstructure and property characterization techniques. The method enables the complete analyses of ten processing conditions within just five days, whereas traditional low-throughput characterization techniques would take at least two weeks. The high-throughput characterization framework utilizes advanced imaging techniques to characterize the hierarchical microstructure in PBF SS316L at various length scales. The experimental framework establishes accelerated PSP relationships between process parameters, grain structure, cellular subgrain structure, and mechanical properties of PBF SS316L. Validation of the methodology is demonstrated to tailor the grain structure and cellular subgrain structure in PBF SS316L for designing parts with desired properties. The framework will be briefly extended to other alloy systems to demonstrate its flexibility. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, Characterization, Mechanical Properties |