Stacking faults in plastically deformed FeAl alloy with the B2 structure

Abstract
The stacking faults formed in 4% plastically deformed Fe-35 at.% Al alloy with the B2 ordered superlattice structure have been detected by transmission electron microscopy (TEM). Their crystallographic characters have been determined by use of diffraction contrast techniques in the TEM. The observed faults are compared with stacking faults in f.c.c. materials and with dislocation multipoles. A mechanism for the production of the faults is proposed.