Investigation of contribution of {123} slip planes to development of rolling textures in bee metals by use of Taylor models

Abstract

In order to describe the evolution of rolling textures in bcc metals, and particularly to assess the contribution of dislocation slip on {123} glide planes, a Taylor model, which makes use of increasing strain relaxation and considers various types of bcc glide system, is applied. The deformation is simulated in the range ε=0–90%. The model in which dislocation slip on {IIO}, {l12}, and {123} planes is taken into account exhibits good agreement with experimentally detected rolling textures. A comparison with computations carried out using only {11O} and {112} slip planes reveals that the additionally activated {l23} <111> glide systems contributed a considerable amount of shear which wasformerly attributed to the {110}<111> and (112}<111> slip systems.

MST/2091