| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Mechanical Behavior of Nuclear Reactor Materials and Components IV
|
| Presentation Title |
Creep Rupture and Microstructural Analysis of Dissimilar Welded Joints of P92 Steel and Alloy 617 |
| Author(s) |
Amit Kumar, Chandan Pandey, Kalpana Gupta |
| On-Site Speaker (Planned) |
Amit Kumar |
| Abstract Scope |
Nuclear power plants are recognised for their efficiency and effectiveness, particularly when operating at elevated steam temperatures. High-temperature components within these plants employ nickel-based alloys like Alloy 617. Nevertheless, lower-temperature components frequently use less expensive ferritic-grade steels like P91 and P92. Welding these dissimilar materials balanced the plant's performance and cost-effectiveness. This study focuses on the creep rupture behaviour of a dissimilar welded joint (DWJ) joint of P92 steel and Alloy 617. An optical microscope (OM) and a field emission scanning electron microscope (FESEM) were used to analyse the joint and investigate its properties. The investigation looks at how creep ruptures happen and how the microstructure changes inside the DWJ, and microhardness testing to comprehensively assess the joint's performance under specific stress and temperature conditions. At 140 MPa and 650°C, the sample demonstrated a creep rupture time of 54.48 hours. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Joining, High-Temperature Materials, Characterization |