Abstract
The general features of transformation textures are described, and an improved model that accounts for variant selection is presented. The initial fcc rolling texture is represented by the seven well-known deformation fibre orientations. The Kurdjumov-Sachs relationship is employed, and the 24 rotation axes inherent in this formulation are related to the 24 slip systems in the fcc lattice, using the nomenclature of Bishop and Hill. The slip activity, or amount of shear, on each active slip plane is used, together with the direction of shear to predict one set of the variants selected. A second set, which corresponds to variants related to dislocations with unstressed (i.c. inactive) Burgers vectors. is also shown to play a role. In this case. the dislocations are formed by a combination of in-plane reaction and cross-slip. The predictions made in this way are in very good agreement with experimental steel textures, in particular with respect to the locations and intensities of the {113} , {332} , {211} and rotated cube, {100} orientations.
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