| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Titanium Technology
|
| Presentation Title |
Influence of Oxygen and Zirconium Additions on Oxidation Resistance and Mechanical Properties of Ti-Al and Ti-Al-Zr Alloys |
| Author(s) |
Michal Kuris, Maria Tsoutsouva, Thomas Vaubois, Agnes Locq, Catherine Rio, Marc Thomas, Frédéric Habiyaremye, Jean-Philippe Monchoux |
| On-Site Speaker (Planned) |
Michal Kuris |
| Abstract Scope |
Titanium-aluminide alloys with a high γ-phase content are promising materials for high-temperature applications (700-800°C) that demand high strength, low density and oxidation resistance. However, their broader use is limited by low ductility, fracture toughness and challenges in production. This study examines the impact of adding Zr in proportions of 0.5, 1, and 2 at.% on the mechanical properties and oxidation resistance of Ti-Al alloys by adjusting the α to γ phase ratio. Binary Ti52Al alloys along with ternary Ti52Al0.5Zr, Ti52Al1Zr and Ti52Al2Zr alloys, were heat-treated at 1250°C. The α and γ phase transformations, their stability and the resulting effects on Ti-Al alloys were analyzed across varying O2 levels (800–4200 ppm) to optimize Ti-Al alloy composition and processing conditions. ThermoCalc simulation results were validated through chemical and microstructural analyses, providing key insights into the effects of Zr and O2 content on mechanical properties and oxidation resistance. |
| Proceedings Inclusion? |
Planned: |