About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Accelerated Qualification Methods for Nuclear Reactor Structural Materials
|
| Presentation Title |
Advancing the Understanding of Mechanical Properties of Diffusion-Bonded 316H and Alloy 617 for High-Temperature Applications |
| Author(s) |
Mahmud Hasan Ovi, Intisher Al-Tahmid Omi, Tamim Hossain, Hoon Lee, James F. Stubbins |
| On-Site Speaker (Planned) |
Mahmud Hasan Ovi |
| Abstract Scope |
The aim of this study is to investigate the properties of diffusion-bonded 316H and A617 in high-temperature environments, with focus on identifying critical material characteristics/properties of bonded structures and explain how bonds fail under mechanical loading, particularly the effects of elevated temperatures. Tensile and creep tests have been conducted along with Digital Image Correlation (DIC) over a range of temperatures upto 760°C. The combined approach offers important insights into the material response to ongoing mechanical loading. Creep-fatigue testing is used to simulate design limits for “damage” accumulation and the associated controlling microstructural mechanisms. Shear punch tests are also used to assess bond integrity and detect potential bond delamination. Grain growth across bondlines is a determining factor for bond performance and has been analyzed using multiple microstructural analysis techniques. This effort is the basis for an ASME Code Case for elevated temperature applications of compact heat exchangers in advanced nuclear systems. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
High-Temperature Materials, Mechanical Properties, Characterization |