Abstract
A dissociated dislocation introduced by compression at room temperature in a Ag-15at.%Al alloy was studied comprehensively by the weak-beam method. In addition to the two Shockley partials of the dissociated dislocation, faint contrasts were observed near the Shockley partial with pure edge orientation. Contrast experiment was carried out on the faint contrast, and we conclude that this is evidence for the interaction between an edge-orientated Shockley partial moving under the action of an applied stress and vacancies at room temperature.
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