About this Abstract |
| Meeting |
TMS Specialty Congress 2026
|
| Symposium
|
4th World Congress on High Entropy Alloys (HEA 2026)
|
| Presentation Title |
Development of NiCoFeCrAl Based High Entropy Alloys for Hydrogen Fueled Turbine System |
| Author(s) |
Shanshan Hu, Xingru Tan, Michael Gao |
| On-Site Speaker (Planned) |
Shanshan Hu |
| Abstract Scope |
Hydrogen-fueled gas turbines are important for achieving carbon-neutral technology to meet ambitious energy and climate goals. But hydrogen combustion will significantly decrease the life span of current state-of-the-art MCrAlY coated turbines due to the higher flame temperature and the presence of water vapor. Herein, with the aid of machine learning and high throughput CALPHAD calculations, we successfully developed several NiCoFeCrAl based HEAs coatings which achieved the same performance in hydrogen combustion environment as current systems in a natural gas environment. The HEA coating facilitates the formation of a protective scale of alpha-alumina to slow down the inward diffusion of oxidizing species and the outward diffusion of metal elements and possesses ultrahigh corrosion and spallation resistance to prolong the service lifetime of critical components in hydrogen turbine power system. |
| Proceedings Inclusion? |
Undecided |