About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Energy Technology 2026: Advancement in Energy Materials - Theory, Simulation, Characterization, Application
|
| Presentation Title |
Structural alloys and their embrittlement in hydrogen transport |
| Author(s) |
Eason Yi-Sheng Chen |
| On-Site Speaker (Planned) |
Eason Yi-Sheng Chen |
| Abstract Scope |
Hydrogen embrittlement presents a critical barrier to the reliable use of structural alloys in hydrogen transport and related applications, often leading to premature and unpredictable failure. A major obstacle in addressing this issue has been the difficulty of directly visualizing hydrogen behavior within complex alloy microstructures. In this work, we utilize cryogenic atom probe tomography (cryo-APT) to achieve nanoscale mapping of hydrogen distributions, offering unprecedented insight into its interactions with microstructural features such as grain boundaries, dislocations, and precipitates. Coupling cryo-APT with micromechanical testing enables us to link hydrogen localization to both failure-prone regions and sites of beneficial hydrogen trapping. This integrated approach reveals new mechanistic understanding of hydrogen embrittlement and informs the design of microstructures with enhanced resistance to hydrogen-induced damage. Our findings underscore the value of advanced characterization tools in developing high-performance structural alloys for safe and durable hydrogen infrastructure. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Characterization, Energy Conversion and Storage, Iron and Steel |