| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Radiation Effects in Metals and Ceramics
|
| Presentation Title |
H-51: Ion Irradiation Effects on the Microstructure of PM-HIP Inconel 625 |
| Author(s) |
Caleb Clement, Janelle Wharry, Xiang Liu, Megha Dubey, David Gandy |
| On-Site Speaker (Planned) |
Caleb Clement |
| Abstract Scope |
The objective of this talk is to compare the microstructure of an ion irradiated Ni-based alloy produced by powder metallurgy with hot isostatic pressing (PM-HIP), and its traditionally manufactured counterpart. PM-HIP is an attractive alternative to castings and forgings in the nuclear industry because components exhibit chemical homogeneity and are produced near-net shape, reducing the need for machining and welding. Irradiation effects must be understood before PM-HIP materials can be employed in nuclear reactors. This work focuses on PM-HIP and cast Inconel 625, self-ion irradiated to a dose of 100 displacements per atom (dpa) at temperatures 400-500°C. Transmission electron microscopy (TEM) is used to characterize irradiation-induced voids, dislocation loops, and changes in pre-existing precipitates. The irradiated microstructures are compared between the PM-HIP and cast material. Results will be discussed in the context of an ongoing PM-HIP neutron irradiation campaign and the progress toward qualification of PM-HIP alloys for nuclear service. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |