Early stages of dissolution corrosion in 316L and DIN 1.4970 austenitic stainless steels with and without anticorrosion coatings in static liquid lead-bismuth eutectic (LBE) at 500 °C

This work addresses the early stages (≤1000 h) of dissolution corrosion behavior 316L and DIN 1.4970 austenitic stainless steels in contact with oxygen-poor (CO < 10−8 mass%), static liquid lead‑bismuth eutectic (LBE) at 500 °C for 600–1000 h. The objective this study was to determine relative early-stage resistance uncoated assess protectiveness select candidate coatings (Cr2AlC, Al2O3, V2AlxCy). simultaneous exposure intended differences microstructure thermomechanical state showed effects steel grain size, density annealing/deformation twins, secondary precipitates on behavior. findings provide recommendations manufacturing aim using construct Gen-IV lead-cooled fast reactors.