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← ScienceWhich outcome is observed as a dislocation core expands within a metallic crystal lattice?
A)Increased material plastic deformation rate✓
B)Enhanced vacancy climbs through lattice
C)Augmented electron-phonon scattering events
D)Elevated interstitial diffusion coefficient values
💡 Explanation
Increased plastic deformation results because dislocation motion via the Frank-Read source mechanism generates new dislocations, therefore promoting slip planes throughout the material rather than elastic strain build-up.
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