| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Multi-Principal Element Alloys II
|
| Presentation Title |
J-36: GTA Weldability of Metastable Ferrous Medium-entropy Alloys with Various Welding Materials |
| Author(s) |
Yoona Lee, Sanghyeon Park, Yoonsuk Choi, Nokeun Park, Youngsang Na, Namhyun Kang |
| On-Site Speaker (Planned) |
Yoona Lee |
| Abstract Scope |
Due to the need to develop alternative energy resources, the need for developing materials with cryogenic properties used in the deep sea and polar regions increases. As conventional materials with these properties, austenitic stainless steel has used, but there are problems of hot cracking, stress corrosion cracking, and sensitization after welding. Therefore, high-entropy alloys (HEAs), which can overcome the limitations of conventional alloys, are in the spotlight. Also, ferrous medium-entropy alloys (MEAs) with more economical compared to HEAs and excellent cryogenic properties due to deformation-induced phase transformation by a metastable phase are being actively studied. To use such ferrous MEAs to the next-generation structural materials, it is necessary to develop welding materials, but there are no studies.
In this study, welding materials suitable for metastable ferrous MEAs were developed. The mechanical properties and microstructural behavior of the welds with various welding materials at room and cryogenic temperature were examined. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
High-Entropy Alloys, Mechanical Properties, Other |