Multiscale Exploration of Texture and Microstructure Development in Recrystallization Annealing of Heavily Deformed Ferritic Alloys

Abstract We present a multi-scale study of recrystallization annealing an 85% cold rolled Fe-3%Si-0.1%Sn alloy using combination dark field X-ray microscopy (DFXM), synchrotron diffraction (SXRD), and electron backscatter (EBSD). Grains interest from high stored energy (HSE) regions in 200μm-thick sample are studied DFXM during isothermal annealing. The intra-granular structure the as deformed grain reveals deformation bands separated by ≈ 3–5° misorientation. Geometrically Necessary Dislocation evolution growth is investigated. These findings supported quantitative non-destructive texture analysis SXRD terms pole figures orientation distribution functions. Although no significant macroscopic change observed up to 50% recrystallization, calculated index indicates different nucleation processes at various stages Our results show that zones local misorientation HSE decisive for formation recrystallized grains.