Formation of Interstitial Dislocation Loops by Irradiation in Alpha-Iron under Strain: A Molecular Dynamics Study

The present work reports the formation of an interstitial dislocation loop with a lower primary knock-on atom (PKA) energy in alpha-iron under strain conditions by use molecular dynamics simulation. study was conducted using PKA 1~10 keV and hydro-static from −1.4 to 1.6%. application 1.6% hydrostatic results ½<111> low 3 keV. This result associated threshold displacement decrement when moving compression tension strain, which resulted more Frenkel pairs initiated at peak time. Furthermore, many defects were energetically favorable 2 eV form rather than mono defect.