About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
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Symposium
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Additive Manufacturing: Advanced Characterization with Synchrotron, Neutron, and In Situ Laboratory-scale Techniques III
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Presentation Title |
Continuous-wave Lasering Improves Strength-Ductility Tradeoff and Fatigue Response of Additively Manufactured Stainless Steels |
Author(s) |
Juan Guillermo Santos Macías, Kewei Chen, Alexandre Tanguy, Manas Upadhyay |
On-Site Speaker (Planned) |
Manas Upadhyay |
Abstract Scope |
One of the most important goals of research on engineering of stainless steels is to design microstructures that exhibit higher strength, ductility and improved fatigue response than currently possible. The advent of metal additive manufacturing (AM) has opened up the possibility to design steel microstructures that exhibit unprecedentedly high strength. However, this increase in strength is often accompanied with a decrease in ductility and reduction in fatigue limit due to a worse surface roughness than conventionally processed steels. We propose a new strategy to engineer microstructures of direct energy deposited (DED) 316L stainless steel in such a way that it improves not only its strength but also its ductility and fatigue response. To facilitate such studies, we have designed a novel coupling between a continuous-wave (CW) laser and a scanning electron microscope (SEM). This coupling and the experimental results will be presented. |
Proceedings Inclusion? |
Planned: |
Keywords |
Solidification, Iron and Steel, Surface Modification and Coatings |