4D microstructural evolution in a heavily deformed ferritic alloy: A new perspective in recrystallisation studies

[Display omitted] We present a multiscale study on the recovery and recrystallisation of a heavily deformed (85% reduction in size) Fe–Si–Sn alloy using a combination of dark field X-ray microscopy (DFXM), synchrotron X-ray diffraction (SXRD) and electron backscatter diffraction (EBSD). By utilizing...

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Bibliographic Details
Published in:Scripta materialia 2022-06, Vol.214, p.114689, Article 114689
Main Authors: Yildirim, C., Mavrikakis, N., Cook, P.K., Rodriguez-Lamas, R., Kutsal, M., Poulsen, H.F., Detlefs, C.
Format: Article
Language:English
Subjects:
Annealing
Dark field X-ray microscopy
Grain growth
Misorientation
Recrystallisation
Recrystallized microstructure
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Summary:[Display omitted] We present a multiscale study on the recovery and recrystallisation of a heavily deformed (85% reduction in size) Fe–Si–Sn alloy using a combination of dark field X-ray microscopy (DFXM), synchrotron X-ray diffraction (SXRD) and electron backscatter diffraction (EBSD). By utilizing DFXM, we focus on a grain within the high stored energy (HSE) regions, and track it through consecutive isothermal annealing steps. The intra-granular structure of the as-deformed grain reveals deformation bands separated by ≈3–5∘ misorientation. During the early stages of annealing, cells with 2–5∘ misorientation form while new nuclei appear. The recrystallized grains nucleate near prior grain boundaries, having a typical internal angular spread of
ISSN:1359-6462
DOI:10.1016/j.scriptamat.2022.114689