About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in the State-of-the-Art of High Temperature Alloys
|
| Presentation Title |
Development of Oxidation-Resistant Cr-Mo-Si Solid Solution Alloys |
| Author(s) |
Gabriely Falcão, Daniel Schliephake, Sri Rathinamani Ramdoss, Sandipan Sen, Ewa Marlene Hahn, Frauke Hinrichs, Alexander Kauffmann, Martin Heilmaier |
| On-Site Speaker (Planned) |
Gabriely Falcão |
| Abstract Scope |
Recently, a Cr-36.1Mo-3Si (at.%) alloy was found to be oxidation-resistant between 800 and 1100 °C, as well as to be plastically deformable in compression at room temperature. This unique property combination for refractory alloys makes this alloy a promising candidate for high-temperature applications. In this study, cyclic oxidation experiments were conducted at 800 and 1100 °C for up to 100 h on Cr-XMo-YSi (X = 40 to 60; Y = 3, to 6 at.%) alloys to determine the chemical composition requirements for oxidation resistance. The oxidation in these alloys is characterized by both, mass gain by Cr2O3 formation and mass loss by MoO3 evaporation. Only the alloys containing 40 and 42 at.% Mo possess an oxidation resistance comparable to Cr-36.1Mo-3Si at 800 °C, while a slightly increased mass loss was observed at 1100 °C. As the mass change increased, the character of the oxide scale changed from dense to porous. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
High-Temperature Materials, Other, Other |