|About this Abstract
||2022 TMS Annual Meeting & Exhibition
||Advanced Characterization Techniques for Quantifying and Modeling Deformation
||3D Orientation and Strain Mapping of Recrystallization and Micro-texture Development in Heavily Deformed Ferritic Alloys
||Can Yildirim, Carsten Detlefs, Henning F. Poulsen, Raquel Rodrigues-Lamas, Philip K. Cook, Mustafacan Kutsal, Melanie Gauvin, Dominique Mangelinck, Myriam Dumont, Nikolas Mavrikakis
|On-Site Speaker (Planned)
We present a multiscale study on the recrystallization annealing of heavily cold rolled (true strain of 2) Fe-Si-Sn alloys using dark field X-ray microscopy, 3D X-ray diffraction (3DXRD) and electron backscattered diffraction (EBSD). A grain oriented along the rolling direction and embedded in a 200-micron thick sample is studied at consecutive annealing steps. The 3D intra-granular structure of the as-deformed grain reveals deformation bands separated by ~ 5° misorientation. An orientation spread > 10° is observed within the grain prior to annealing. During the early stages of annealing, cells having 2-5° misorientation are formed within the deformed grain while the nucleation of the recrystallized grains is observed. The recrystallized grains form at the prior grain boundaries, between the parent and adjacent grains with an internal angular spread around 0.04°. They exhibit no particular orientation relationship with respect to the parent grain. No macroscopic texture change is observed upon further annealing.
||Characterization, Iron and Steel, Other