Modeling of radiation hardening in ferritic/martensitic steel using multi-scale approach

► Irradiation hardening is estimated by atomistic and dislocation dynamics analyses. ► Molecular dynamics is used to assess effect of irradiation on edge dislocation in Fe-10%Cr alloys. ► Irradiation effect is simulated by substitutional helium, voids and helium bubbles. ► Change in CRSS is estimated for various diameters of above obstacles. ► Flow stress is then found by DD simulation using CRSS for different values of dpa.