| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing of Large-scale Metallic Components
|
| Presentation Title |
The Effect of Build Platform Temperature and Thermal Post-Processing on the Ferritic/Martensitic T-91 Stainless Steel Additively Manufactured via Directed Energy Deposition Laser technique |
| Author(s) |
Shmuel Samuha, Jeff Bickel, Tuhin Mukherjee , Tarasankar DebRoy , Thomas Lienert, Stuart Maloy , Calvin Lear, Peter Hosemann |
| On-Site Speaker (Planned) |
Shmuel Samuha |
| Abstract Scope |
The Ferritic/Martensitic T91 steel, a structural material used for various nuclear applications, was fabricated using the directed energy deposition laser technique.
Aimed at linking fabrication to performance via defining the process-structure-property relationships, this talk will address two essential issues in the fabrication strategy: 1) the influence of the platform temperature and 2) the effects of a post-processing thermal treatment on mechanical properties and microstructure. Samples machined along the principal axis of a cuboid shape product were evaluated in their pristine state and following different heat treatments. Variations in the mechanical properties were explained in terms of several competing strengthening mechanisms, and their activity was considered owing to fabrication-related mechanisms. Cases showing high potential applicability were further considered a profitable starting point for the design of optimized thermal post-processing treatment. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Iron and Steel, Characterization |