Influence of Torsion Deformation on Textures of Cold Drawing Pearlitic Steel Wires

Abstract

The influence of torsion deformation on textures of cold drawing pearlitic steel wires was investigated by twisting the wires to different number of revolutions. Macro-texture (over the entire wire cross section) associated with torsion deformation was investigated by X-ray diffraction, while micro-texture (near the wire surface) was characterized by EBSD. The results show that the $\left\langle { 1 10} \right\rangle$ macro-texture increases at the beginning of torsion and then decreases with increasing of torsion strain, while the $\left\langle { 1 10} \right\rangle$ micro-texture decreases linearly with increasing of torsion strain. The relationships between the $\left\langle { 1 10} \right\rangle$ fiber texture and the microhardness of the wires are also discussed.