Deformation and recrystallization texture development in Fe-4%Si subjected to large shear deformation

Abstract

Machining is used as a deformation technique to impose large shear strains (γ ∼ 2) in a commercial Fe-4%Si alloy. The partial <111> and {110} – fiber texture components are generated throughout the as-deformed microstructure, which is expected of BCC metals deformed in simple shear. Using an annealing schedule similar to that in the commercial rolling process, samples retain the deformation texture, consistent with a continuous-type recrystallization mechanism. Fine-grained annealed samples reveal two different partial fiber orientations, one of which becomes the dominate texture, following the high-temperature growth treatment. The mechanisms of texture evolution and implications for texture control in the machining-based process are discussed.