抄録
The changes in orientation and the deformation structures of (211)[\bar111] single crystals of silver during rolling have been studied. It was shown that shear bands were formed in a pure metal such as silver. The (211)[\bar111] orientation changed into the {111}⟨211⟩ duplex orientation at about 75% reduction. At more than about 30% reduction mechanical twins were induced, and the shear bands were formed preferentially within the twin lamellae. The orientational change correlated well with the activation of single family of shear bands which penetrate whole specimen thickness. With increasing rolling reduction, additional orientations, {011}⟨100⟩ and {011}⟨211⟩, appeared although the duplex orientation retained stably. At the reductions more than about 75%, two families of shear bands were formed symmetrically with respect to the rolling plane normal, and the fraction of shear band regions increased with rolling reduction. The additional orientations were responsible for the texture developed within the shear band regions owing to intense shearing deformation on the two families of shear bands.
