Quantitative determination of a change of dominant slip system in tensile FCC single crystals

Abstract

A change of dominant slip system (CDSS) in tensile FCC single crystals, as illustrated by properties of Cu-11at.%Al alloy single crystals, is quantitatively analyzed. The analysis shows that before and after the changeover cumulative shear of the dominant slip system is of the order of a magnitude larger than that of any other active secondary system. It was also found that at the critical condition for the CDSS to occur the rate of work hardening of the previously dominant slip system becomes equal to that one which is taking over. © 2010 IOP Publishing Ltd.