The Interaction of Long-Range Order and Deformation Processes in Cu₃Au Polycrystals

Abstract

It is shown that the state of ordering in a copper-25 at.- % gold alloy does not affect the texture developed on rolling. At no stage in the rolling process were significant differences detected between materials in which different states of order had been produced. A method is introduced for investigating processes of disordering in polycrystalline samples. It allows the order parameter to be determined as a function of orientation and has led to the conclusion that hard orientations, i.e. those having a large M value, disorder less rapidly than soft orientations. This result is at first sight surprising, but can be accounted for in terms of the mechanisms of polycrystalline deformation.