About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: Length-Scale Phenomena in Mechanical Response
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| Presentation Title |
Mechanical Response of Tailored 304L Stainless Steels, Processed with L-PBF, under Different Stress States |
| Author(s) |
Christos Sofras, Jan Capek, Markus Strobl, Efthymios Polatidis |
| On-Site Speaker (Planned) |
Christos Sofras |
| Abstract Scope |
Apart from the profound advantage of producing complex geometries, laser-powder bed fusion (L-PBF) provides the possibility of manipulating microstructures and crystallographic textures. By combining the texture-manipulation capabilities of L-PBF with the strong orientation-dependence of the transformation induced plasticity (TRIP) and the twinning induced plasticity (TWIP) effects, it is possible to realize L-PBFed alloys with equal or even superior mechanical properties compared to their wrought counterparts. In this contribution, the mechanical behavior of a 304L steel processed with L-PBF and with locally tailored crystallographic textures will be shown. Uniaxial tension, compression and equibiaxial tests, paired with in-situ neutron diffraction and EBSD analysis, enable monitoring the microstructural evolution during deformation. Additionally, quasi-static EBSD measurements are performed on multi-textured specimens subjected to V-bending tests. The present investigation highlights how tailored microstructures, produced by L-PBF, lead to different mechanical responses and paves the way for tailored materials with enchanced strength and energy dissipation applications. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Iron and Steel, Phase Transformations |