| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Mechanical Behavior of Nuclear Reactor Components
|
| Presentation Title |
In-situ Scanning Electron Microscopic Observation of Creep and Creep-fatigue of Alloy 709 |
| Author(s) |
Amrita Lall, Rengen Ding, Paul Bowen, Afsaneh Rabiei |
| On-Site Speaker (Planned) |
Afsaneh Rabiei |
| Abstract Scope |
Alloy 709 is a 20Cr-25Ni advanced austenitic stainless steel developed as an improvement over the existing advanced austenitic stainless steels. The alloy’s high Ni content provides increased austenite stability, while its high Cr content improves its corrosion resistance at extreme environments of nuclear structures. In this study, in-situ scanning electron microscope (SEM) tensile, creep and creep-fatigue tests at various temperatures from room temperature to 1000 °C will be reported. Electron backscatter diffraction (EBSD) and Energy Dispersive X-ray spectrometry (EDS) were used to observe the microstructural evolution and phase change during the in-situ heating and loading at different temperatures and strain rates and identify the dominant deformation mechanisms in each environmental condition. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Characterization, Iron and Steel, High-Temperature Materials |