摘要
Lead cooled fast reactor(LFR)is considered as an innovative nuclear energy system,which has attracted attention worldwide in recent years^([1]).The LFR was also chosen as the sub-critical reactor in the China initiative Accelerator Driven System(CiADS).LFRs present an extreme environments in which structural materials(mainly FeCr base steels)are required to withstand intense neutron radiation and coolant corrosion in a wide temperature range.
