| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
Environmental Degradation of Additively Manufactured Alloys
|
| Presentation Title |
Long-term High-temperature Oxidation Performance of Inconel 625 Processed by Laser-assisted Additive Manufacturing |
| Author(s) |
Grace Vanessa De Leon Nope, Juan Manuel Alvarado-Orozco, Guofeng Wang, Brian Gleeson |
| On-Site Speaker (Planned) |
Grace Vanessa De Leon Nope |
| Abstract Scope |
After achieving consistent microstructure of additive manufactured (AM) parts of Ni-based alloys, research efforts have focused on assessing mechanical and oxidation performance. Consistent oxidation performance at high temperatures is essential to continue the qualification of AM parts for their implementation in industrial applications. Previous work has demonstrated better oxidation resistance at short-term of wrought Inconel 625 than its AM counterpart. This study aims to investigate the long-term oxidation performance of AM Inconel 625 after isothermal exposure in lab air at 800°C and 950°C for up to 5000 h. Oxidation behavior of as-built AM, homogenization heat-treated AM, and wrought samples will be evaluated and compared. Oxidation kinetics, internal attack (i.e., internal oxidation and void formation), and chromia/alloy interfacial defects will be correlated to the microstructure prior to oxidation. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Environmental Effects, |