Anti-phase domains and dislocation configurations in the Fe-13 at. % Si alloy

Abstract

Transmission electron microscopic observations have been made on the thermally produced anti-phase domain structures and the dislocation configurations associated with ordering in the Fe-13 at. % Si alloy. Dislocations have been found to move as pairs of ordinary dislocations bound together by an anti-phase boundary of the (¼)a ₀′ 〈111〉 type on {110}, {112} and {123} planes. The anti-phase boundaries of the (¹/₂)a ₀′ 〈100〉 type very likely left behind dislocation pairs have also been observed.