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@ARTICLE{Hamada:1046971,
      author       = {Hamada, Atef and Khosravifard, Ali and Alatarvas, Tuomas
                      and Jaskari, Matias and Abd-Elaziem, Walaa and Allam, Tarek
                      and Järvenpää, Antti},
      title        = {{F}ast heating annealing of {V}-microalloyed {TWIP} steel:
                      {P}athway to ultrafine grains and enhanced mechanical
                      performance},
      journal      = {Journal of materials research and technology},
      volume       = {37},
      issn         = {2238-7854},
      address      = {Rio de Janeiro},
      publisher    = {Elsevier},
      reportid     = {FZJ-2025-04039},
      pages        = {2449 - 2462},
      year         = {2025},
      abstract     = {This study explores the effect of fast heating annealing
                      (FHA) on the microstructure and mechanical properties of
                      V-microalloyed high-Mn TWIP steel. Cold-rolled sheets were
                      subjected to FA cycles at a heating rate of 200 °C/s over a
                      temperature range of 700–900 °C for 30 s. The
                      microstructures achieved through FHA were characterized
                      using electron backscatter diffraction (EBSD), while
                      mechanical performance was evaluated through uniaxial
                      tensile testing and physically based modeling.FHA at lower
                      temperatures (700–800 °C) promoted partially
                      recrystallized structures, while fully recrystallized
                      ultrafine-grained microstructures were obtained at 850–900
                      °C. The optimized structure achieved at 850 °C showcased
                      an exceptional strength–ductility balance, with a yield
                      strength of 415 MPa, tensile strength of 850 MPa, and
                      elongation of 60 $\%,$ resulting in a high UTS × TE product
                      of 50700 $MPa·\%.$ Fractographic analysis revealed ductile
                      failure dominated by dimple formation, with voids nucleated
                      at non-metallic inclusions.Inclusion classification and
                      statistical analysis further identified Al2O3–Mn(S,Se) as
                      the most dominant inclusion type, with complex multiphase
                      clusters also observed, indicating their role in damage
                      initiation. The applied mechanistic modeling and
                      strain-hardening analysis confirmed that dynamic
                      Hall–Petch strengthening, driven by mechanical twinning
                      and grain refinement, significantly enhanced strain
                      hardening and delayed plastic deformation instability.These
                      findings demonstrate that FHA offers a viable,
                      time-efficient processing strategy for tailoring
                      microstructure and optimizing the mechanical performance of
                      high-Mn TWIP steels through controlled recrystallization,
                      twin activation, and precipitation strengthening.},
      cin          = {IMD-1},
      ddc          = {670},
      cid          = {I:(DE-Juel1)IMD-1-20101013},
      pnm          = {1221 - Fundamentals and Materials (POF4-122)},
      pid          = {G:(DE-HGF)POF4-1221},
      typ          = {PUB:(DE-HGF)16},
      doi          = {10.1016/j.jmrt.2025.06.164},
      url          = {https://juser.fz-juelich.de/record/1046971},
}