Jp. Hirth et Rg. Hoagland, EXTRINSICALLY DISSOCIATED DISLOCATIONS IN SIMULATED ALUMINUM, Philosophical magazine. A. Physics of condensed matter. Structure, defects and mechanical properties, 78(3), 1998, pp. 529-532
The dissociation of dislocations into partials bounding an extrinsic s
tacking fault is studied in an atomistic simulation of aluminium. An e
mbedded-atom-type potential is employed. Of two possible extended conf
igurations, one retains an extrinsic stacking fault in a stable array
while the other converts to an array with an intrinsic stacking fault.
The results are related to interaction forces among the partial dislo
cations in the arrays.