Description

The 2012 Mordica Memorial Lecture begins with a short introduction on the theory of crystallographic textures—what they are and how they can be measured and represented, with specifics for drawn wire. Then it reviews the principles of crystal plasticity, with a focus on some practical aspects such as how to proceed if either the stress or the strain is prescribed. Special attention is devoted to the curling phenomenon in drawing of bcc metals. This is followed by a short overview of existing models for the plastic deformation of polycrystalline materials and their application to wiredrawing. Finally, two types of drawing failures affected by texture are discussed—the danger of the formation of internal brittle cracks in tungsten and of delamination in torsion-type deformation of high-strength steel wires.