|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Accident Tolerant Fuels for Light Water Reactor
||Optimization of Process Parameters for Thin-wall Tube Fabrication of FeCrAl Alloys
||Zhiqian Sun, Yukinori Yamamoto
|On-Site Speaker (Planned)
Nuclear-grade FeCrAl alloys are under development as accident-tolerant fuel cladding in light-water reactors due to their superior oxidation resistance in high-temperature steam environments compared with commercial zirconium alloys. However, the neutronic penalty of FeCrAl alloys limits the wall thickness of fuel cladding. In addition, the limited deformability of FeCrAl alloys imposes challenges on successful fabrication of seamless thin-wall tube products. Improper processing parameters could result in either premature failure or undesirable microstructures (e.g., coarse grains) during tube fabrication. In this study, the intertwined effects of process parameters (i.e., reduction ratio per pass, inter-pass annealing temperature and time, etc.) on FeCrAl alloy tube production were investigated. The results provide a guideline for selection of the process parameters to achieve desirable microstructures with balanced processability and properties in the final tube products. Research sponsored by US DOE, Office of Nuclear Energy, Advanced Fuel Campaign of the Fuel Cycle R&D program.
||Planned: Supplemental Proceedings volume