| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Heterostructured and Gradient Materials (HGM VI): Principle, Processing and Properties
|
| Presentation Title |
Using Hydrogen as a Temporary Alloying Element for Microstructure Control During Thermo-Mechanical Processing |
| Author(s) |
Can Okuyucu, Haoxue Yan, Cemal Cem Tasan |
| On-Site Speaker (Planned) |
Can Okuyucu |
| Abstract Scope |
Diffusible hydrogen in commercial alloys is known to be the cause of many catastrophic failure modes. Past decades have witnessed various research activities focused on solving these embrittlement effects of hydrogen. In this study, we follow a strategy to explore the beneficial use of hydrogen in metals for locally controlling microstructural evolution. Aluminum and its alloy systems were chosen as a model system to utilize the high solubility of H inside the fcc-lattice and to gain higher control over the diffusion and recrystallization kinetics under suitable heat treatment conditions. The transient effects of charged and temporarily segregated H on defects were used to tune different recrystallization and growth regimes. The resultant interactions of H with defects yielded a successful effort to create a tailored microstructure. Overall, our study discusses the success of this H-based strategy by building connections between structure, diffusion, and recrystallization kinetics to better understand resulting property combinations. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Characterization, Mechanical Properties, Aluminum |