| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Steels in Extreme Environments
|
| Presentation Title |
Tensile deformation behavior and thermal conductivity of metallic alloys including stainless steels at deep cryogenic temperature as low as 4K |
| Author(s) |
Young-Sang Na, Young-Kyun Kim, Sang-Hun Shim, Seung-Min Jeon |
| On-Site Speaker (Planned) |
Young-Sang Na |
| Abstract Scope |
As the social importance of hydrogen energy increases, interest in liquid hydrogen is skyrocketing. Consequently, there is a growing need to understand the thermal and mechanical properties of materials at deep cryogenic environments. Thorough understanding of mechanical and thermal behavior at deep cryogenic temperature can lead the optimization of alloy’s compositions or microstructures with better performance at the deep cryogenic environment.
In this study, we aim to observe the tensile deformation behavior and corresponding microstructural changes of various metallic alloys including austenitic stainless steels at deep cryogenic temperature as low as 4K. As alternative materials, high-entropy alloys at cryogenic temperature have also been accessed. Deformation-induced phase transformations and deformation instabilities during the deep-cryogenic tensile tests have been thoroughly investigated. New strengthening methods of stainless steel will be suggested based on the cryogenic microstructure tailoring. Some data of thermal conductivity at deep cryogenic temperature will be presented. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Iron and Steel, Mechanical Properties, Environmental Effects |