Deformation banding and ferrite-type rolling textures

A computer model fur predicting rolling textures formed in bcc metals and a lloys deforming by slip using the Taylor-Chin framework and including defor mation banding is presented. The model is rate insensitive. Deformation ban ding in both the rolling and transverse planes were investigated and it is shown that the best results are obtained when grain subdivision in the roll ing plane only is allowed. By modeling two kinds of deformation banding in the rolling plane, rotations of typical texture components along the gamma fiber and the alpha fiber have been traced to demonstrate the development o f individual texture components formed by deformation banding. The influenc e of latent hardening through a parameter, L-h, on the deformation banding process is included in the model, and it is shown that lower L-h produces p eak-type textures, whereas higher values for L-h lead to more deformation b anding as expected, and this strengthens the gamma fiber.