Evolution of Frank loops in austenitic stainless steels under neutron radiation condition by multi-scale modeling method.Based on mean field rate theory,a physical model was constructed to modeling the evolution of neutron irradiation induced Frank loop in materials(Table 1).The parameters in the model were achieved from Evolution of Frank loops in austenitic stainless steels under neutron radiation condition by multi-scale modeling method. Based on mean field rate theory, a physical model was constructed to modeling the evolution of neutron irradiation induced Frank loop in materials (Table 1). The parameters in the model were achieved from