About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: Materials Design and Alloy Development VII – Design With Multi-Modal and Field Data by Integrating Uncertainty
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| Presentation Title |
Quantification of microstructural features of additive-enabled ODS superalloys |
| Author(s) |
Andreas Bezold, Subham Chattoraj, Milan Heczko, Timothy M. Smith, Michael J. Mills |
| On-Site Speaker (Planned) |
Andreas Bezold |
| Abstract Scope |
Oxide dispersion-strengthened (ODS) superalloys attracted significant attention in the 1980s for their exceptional high-temperature capabilities. This interest has been revived in recent years due to advances in additive manufacturing removing the limiting scalability issues. Among emerging strategies, the usage of resonant acoustic mixing to coat alloy powder with yttria enabled the production of crack-free, dense materials with finely dispersed Y203 nanoparticles through laser powder bed fusion. In this study, this approach is extended to precipitation-strengthened superalloys to achieve a synergistic combination of precipitation and ODS strengthening. These superalloys exhibit a complex microstructure, consisting of MX carbides, ODS particles, precipitates, subgrains and dissociated dislocations. In this presentation, we show how we quantify these various microstructural features, correlate them with the underlying mechanical properties and subsequently derive alloy design rules. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Characterization, High-Temperature Materials |