PLASTIC DEFORMATION OF QUENCH-HARDENED ALUMINUM SINGLE CRYSTALS

Deformation morphology of quench-hardened aluminum single crystals was studied on the surface and internally with transmission electron microscopy. It was shown that plastic deformation took place only in distinct slip bands and that these slip bands corresponded to vacancy loop free channels observed in transmission electron microscopy. The empirical equations of microscopic parameters describing the behavior of the slip bands were determined. Then a description of the macroscopic plastic deformation was developed from these parameters instead of discussing the macroscopic plastic deformation in terms of a particular dislocation mechanism. Further, these parameters were qualitatively interpreted in terms of dislocation kinetics. © 1969.