| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
Environmental Degradation of Additively Manufactured Alloys
|
| Presentation Title |
Metal Dusting Resistance of Additively Manufactured Ni-based Alloys: Influence of Post-processing Surface and Heat Treatments |
| Author(s) |
Emma M. White, Clara Schlereth, Benedikt Nowak, Heike Hattendorf, Mathias Galetz |
| On-Site Speaker (Planned) |
Emma M. White |
| Abstract Scope |
Metal dusting (MD) attack occurs in carbonaceous atmospheres (ac>1) and temperatures of 400-800°C, common in the downstream cooling stages of processing and syngas plants, and after an incubation period, causes rapid disintegration into fine coke particles. AM is of interest for MD applications as it could be used to replace corroded components on-demand, and where complex geometries would be beneficial. Advanced Ni-based alloy 699XA has been developed for MD environments and recently been adapted for AM processing. Alloy 699XA builds were tested under industrial MD conditions at 620°C for 1000 hours with different surface conditions and heat treatments. The build post-processing effects on the pit formation and MD resistance will be discussed in relation to the onset mechanisms and the results compared with conventional wrought Ni alloys. This ‘topAM’ has project received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 958192. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Environmental Effects, High-Temperature Materials |