An exploding-wire system for dynamic loading was used to study the influence of stacking-fault energy on the deformation and fracture behavior of alloys containing up to 3.3wt%Si. Transmission electron microscopic examination of the dynamically loaded alloys revealed sub-structures which were similar to those observed in plate impact loaded specimens of copper-based alloys of comparable stacking-fault energy. The deformation structure and the corresponding hardness of the dynamically loaded alloys exhibited the most dramatic change when the stacking-fault energy was varied over the range of 25 to 50mJ/m2. The results indicated that the hardness increase resulting from a given shock pressure and strain-rate was much greater for the exploding-wire configuration than for plate impact loading; given specimens of comparable stacking-fault energy.

Deformation and Fracture Behavior of Cu and CuSi Alloys under Dynamic Loading Conditions. H.Vora, I.M.Fyfe, D.H.Polonis: Materials Science and Engineering, 1978, 32[2], 129-36