Flow accelerated corrosion rate on carbon steel pipe bend by thin layer activation technique and computational modeling: Under PHWR operating conditions

•Carbon Steel pipe corrosion in 50NB Sch 160 of bend angle 58° radius 4 times diameter.•Specimen welded to HTHP loop irradiated with proton beam for nuclear reaction.•In loop pH (10.2) DO (<5 ppb) at 290 °C/87 bar maintained by adding LiOH and N2H4.•Corrosion rate measured by TLA method.•CFD simulated corrosion rate coincides with that of TLA method.