The <111> superlattice dislocations in B2 ordered β-CuZn alloy were studied using weak-beam electron microscopy, and the antiphase boundary energy γ was determined from the separation of two super-partials on {110} and {112} planes. Values of 50 and 37mJ/m2 were obtained for γ110 and γ112, respectively. The operative slip systems in β-CuZn at low temperatures were considered on the basis of the direct measurement of γ110 and γ112.

Anti-Phase Boundary Energy in β-CuZn. H.Saka, M.Kawase, A.Nohara, T.Imura: Philosophical Magazine A, 1984, 50[1], 65-70