| About this Abstract |
| Meeting |
MS&T22: Materials Science & Technology
|
| Symposium
|
Computation Assisted Materials Development for Improved Corrosion Resistance
|
| Presentation Title |
Oxidation Lifetime Modeling of FeCr and NiCr Foils in Hydrogen-fired Microturbines |
| Author(s) |
Marie Romedenne, Rishi Pillai, Bruce Pint |
| On-Site Speaker (Planned) |
Marie Romedenne |
| Abstract Scope |
Materials degradation models are needed to accelerate the development of materials for a future with hydrogen-fired power generation technologies while limiting their cost. By combining these models with long-term experimental data, a better scientific understanding of the degradation mechanisms and highly accurate predictions can be achieved. In the present work, foil specimens of various Fe- and Ni-based alloys were oxidized in air + 10 % H2O and air + 60 % H2O for up to 5,000 h at 700 °C to simulate the exhaust atmosphere of a hydrogen-fueled microturbine. The impact of composition and water vapor content on the oxidation/ volatilization induced loss of wall thickness will be evaluated with a coupled thermodynamic-kinetic lifetime model. This research was sponsored by the U. S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Combined Heat and Power Program. |