Directional Dependence of the Displacement Energy Threshold for a FCC Metal
Dynamical method computer experiments were used to map out the displacement energy threshold in a fcc metal as a function of the direction in which a primary knock-on atom is ejected from a lattice site. The displacement energy threshold for the  and  directions was about 22 eV and that for the  direction was 57 eV. A region of high displacement energy threshold was found in the interior of the stereographic triangle near the line between the  and  poles. The largest threshold energy in this region was 70–75 eV.
KeywordsPair Production Austenitic Stainless Steel Frenkel Pair Collision Cascade Stereographic Triangle
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