b'One of the major accomplishments was the post irradiation examination (PIE) in the hot cells at ORNL of the first version of ARMOR articles removed from the Hatch NPS number 1 (Figure 3). These ARMOR articles were exposed to typical BWR environments for one cycle of 24 months from February 2018 to February 2020. Similarly, in June 2021, irradiated ARMOR and IronClad articles were removed from the Advanced Test Reactor(ATR) after receiving a dose of approximately 20 GWd/MTU. Poolside optical inspec-tion did not show any type of obvious degradation after exposure in a simu-lated pressurized water reactor (PWR) environment (Figure 4). The articles will be moved to the INL hot cells in September 2021 for PIE studies. GE is continuing with the character-ization of two main compositions of IronClad (C26M and Advanced Powder Metallurgy Tubing (APMT) which have bounding compositions of chromium (12% and 21%, respectively). Research studies include the evaluation of (1) resistance of these alloys to 300-800C creep, (2) resistance to fretting corro-sion, (3) effect of composition on the thermal formation of alpha prime, (4) dissolution behavior in hydrogenated and oxygenated environments, (5) effect of presence of zinc on their passivation behavior, and (6) repro-Figure 3. The GE 2000 cask containingfragmentation in the case of an accidentcessing capabilities of FeCrAl compared GNF articles removed from Hatch NPSor for extended burn up conditions. GEto Zircaloy cladding.All the results #1 delivered to ORNL hot cellsis also concurrently working on higher on IronClad are highly promising 235U fuel enrichment and higher fuelcompared with the current cladding burn-up concepts (Figure 2). of Zircaloy-2. For example, Ironclad Accomplishments: materials have higher resistance to In spite of the Covid pandemic disrup- fretting than Zircaloy since under the tion, significant accomplishments cansame tested conditions in 288C water be claimed for the Fiscal year 2021.containing 2 ppm oxygen, the wear 92 2021|AFC ACCOMPLISHMENTS'