About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
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Symposium
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Deformation-induced Microstructural Evolution during Solid Phase Processing: Experimental and Computational Studies
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Presentation Title |
Recrystallization and Microstructural Evolution in Cold Sprayed SS304L |
Author(s) |
Christopher M. Roper, Anita Heczel, Ke An, Luke N Brewer |
On-Site Speaker (Planned) |
Christopher M. Roper |
Abstract Scope |
This study investigates how deformation during the cold spray process effects the microstructural evolution of cold sprayed stainless steel 304L. Mechanical deformation during cold spray deposition leads to high hardness and refined microstructures particularly within prior particle interface regions. Our previous work has shown that laser heating of these cold sprayed microstructures can lead to rapid recrystallization in a matter of seconds compared to a typical furnace heat treatment of hours in cold rolled material. Additionally, using neutron diffraction it was seen that cold spraying SS304L does not lead to a significant increase in strain induced martensite as one might expect. We have recently combined precession electron diffraction, EBSD, and neutron diffraction to look at the microstructures that result from cold spray. Additionally, in situ neutron diffraction during annealing and corresponding thermal simulations have been performed to look at how these microstructures effect the recrystallization mechanisms in cold sprayed SS304L. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, Characterization, Powder Materials |