Dislocation Slip Conditions and Structures in Copper Single Crystals Exhibiting Instabilities in Creep

Abstract

Microstructural aspects of compressive creep at 723 to 773 K and its instabilities in copper single crystals of various orientations are investigated. Metallography, transmission electron microscopy, electron- and Laue X-ray diffraction were used to study dislocation slip. A computer simulation of a change of crystal orientation due to straining was applied to analyse dislocation slip conditions.