About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Environmental Degradation of Additively Manufactured Materials
|
| Presentation Title |
Oxidation Behavior and Microstructural Evolution of Additively Manufactured 316H Stainless Steel Under High-Temperature Exposure |
| Author(s) |
Kinga A. Unocic, S. Saralkar, J. Galeano, Peeyush Nandwana, Juho Lehmusto, Sebastien Dryepondt |
| On-Site Speaker (Planned) |
Kinga A. Unocic |
| Abstract Scope |
Additive manufacturing (AM) produces unique microstructures in structural alloys, offering opportunities for enhanced high-temperature performance when processing parameters are optimized. Achieving this potential requires understanding the processing–structure–property relationships, particularly under oxidative environments. This study investigates the oxidation behavior and microstructural evolution of additively manufactured 316H stainless steel at 650°C and 750°C in air over extended exposure times. The effects of processing power density, testing temperature, and exposure duration were examined using advanced microscopy and spectroscopy techniques. Key findings include elemental segregation within the oxide scale, chromium depletion beneath the oxide–metal interface, and the formation of MC-type carbides along grain boundaries after prolonged exposure. These results emphasize the interplay between AM processing parameters and high-temperature environmental performance. This work provides critical insights for optimizing AM processing strategies to enhance oxidation resistance and ensure the reliable long-term performance of 316H in demanding high-temperature applications. |
| Proceedings Inclusion? |
Planned: |