Simulation of atomic displacement cascades in binary Fe-1.8at.%Ni alloy by molecular dynamics method

This paper is devoted to the results of computer simulation of primary irradiation damage processes in FE-1.8at.%Ni by molecular dynamics method. Simulation is performed for temperature of 600 K. N-body interatomic potentials are used here. Cascade energies in rang of 0.1 – 30 keV are considered. Evaluations of amounts of defects survived in displacement cascades as well as numbers and sizes of vacancy and self-interstitial atoms (SIAs) are obtained. It is revealed that Cr fraction in SIAs is more than twice as higher in comparison with Cr fraction in initial alloy. The influence of nickel in considered concentration on number of point defects survived in displacement atomic cascades is not detected.