| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Aluminum Alloys: Development and Manufacturing
|
| Presentation Title |
Challenging the Hydrogen Embrittlement in Powertrain Aluminum Alloys |
| Author(s) |
Dimitry Sediako, Rashiga Walallawita, Jordan Kozakevich, Matthew Hinchliff, Anna Paradowska, Mark Reid |
| On-Site Speaker (Planned) |
Dimitry Sediako |
| Abstract Scope |
Using hydrogen as a potential fuel for automotive clean-combustion engines may cause various degrees of degradation of mechanical properties in metal alloys, commonly called hydrogen embrittlement (HE). Aluminum powertrain alloys are not immune, and the HE of these materials may drastically jeopardize the longevity and reliability of the next-generation H2-fueled engines.
This discussion focuses on the adaptability of the existing commercial alloys used in powertrain components and novel alloys under development for hydrogen fuel.
Many factors may affect HE in these materials, including the fuel type (hydrogen or hybrid H2-diesel), the characteristics of the cylinder surface coating, pressure, temperature, and humidity of the combustion gases. HE is assessed via vigorous testing of materials in the fitness-for-service programs, including ex-situ and in-situ testing in the pressurized H2 high-temperature environment. Such tests provide a reliable baseline for the fitness assessment of the existing and novel lightweight materials for hydrogen-fuel combustion engines. |
| Proceedings Inclusion? |
Planned: Light Metals |
| Keywords |
Characterization, Mechanical Properties, Process Technology |