|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Accident Tolerant Fuels for Light Water Reactor
||Development of Alumina-forming Duplex Stainless Steels as Potential ATF Cladding Materials: Preliminary Assessments of High Temperature Steam Corrosion Behavior and Tensile Property
||Hyunmyung Kim, Gokul Obulan Subramanian, Chaewon Kim, Changheui Jang
|On-Site Speaker (Planned)
As candidate accident tolerant fuel (ATF) cladding materials for light water reactors, high aluminum duplex stainless steels were developed. Alumina-forming duplex stainless streel (ADSS) model alloys with 5–6 wt.% of Al were prepared by vacuum induction melting followed by subsequent thermo-mechanical processing. Initial microstructure of ADSS alloys was characterized and high temperature steam corrosion behavior at 900–1200°C was evaluated. Using weight gain and oxides analysis, the initial transient and steady-state corrosion behavior was examined. The phase fraction of austenite, ferrite, and intermetallic NiAl phases in ADSS alloys seemed to have effects on both the tensile strength and protective alumina formation at elevated temperature. Overall, the high temperature steam corrosion resistance of ADSS alloys under accident conditions was comparable to commercial FeCrAl stainless steels, while they showed better tensile properties.
||Planned: Supplemental Proceedings volume