About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing Materials, Processes and Applications for Energy Industry
|
| Presentation Title |
Impact of Build Texture and Grain Morphology on the Creep Performance of Additively Manufacturing Austenitic Stainless Steel |
| Author(s) |
Olivia Denonno, Robert Hamlin, Stephen Tate, Jonah Klemm-Toole |
| On-Site Speaker (Planned) |
Olivia Denonno |
| Abstract Scope |
Additive manufacturing (AM) processes such as gas metal arc directed energy deposition (GMA-DED) and laser powder bed fusion (L-PBF) provide a fabrication pathway that can significantly reduce costs and production time within the power generation sector. Implementation of AM components in the power generation sector requires an understanding of elevated temperature creep performance. This work evaluates the creep performance of GMA-DED and L-PBF 316L at 650°C, 750°C, and 825°C and compares to wrought 316L performance. It is shown that build texture effects both creep strength and ductility. Both AM conditions were recrystallized to remove build texture and produce an equiaxed grain morphology similar to wrought material to understand the impact of the AM microstructure on creep performance. Creep life, creep ductility, minimum creep rate, and creep stress exponents as a function of creep temperature for each condition are discussed with respect to employing AM 316L stainless steel for creep-limited applications. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Iron and Steel, Mechanical Properties |