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@ARTICLE{Tandogan:1034975,
      author       = {Tandogan, Tarik and Budnitzki, Michael and Sandfeld,
                      Stefan},
      title        = {{A} multi-physics model for the evolution of grain
                      microstructure},
      journal      = {International journal of plasticity},
      volume       = {185},
      issn         = {0749-6419},
      address      = {Frankfurt, M. [u.a.]},
      publisher    = {Pergamon Press},
      reportid     = {FZJ-2025-00081},
      pages        = {104201 -},
      year         = {2025},
      abstract     = {When a metal is loaded mechanically at elevated
                      temperatures, its grain microstructure evolves due to
                      multiple physical mechanisms. Two of which are the
                      curvature-driven migration of the grain boundaries due to
                      increased mobility, and the formation of subgrains due to
                      severe plastic deformation. Similar phenomena are observed
                      during heat treatment subsequent to severe plastic
                      deformation. Grain boundary migration and plastic
                      deformation simultaneously change the lattice orientation at
                      any given material point, which is challenging to simulate
                      consistently. The majority of existing simulation approaches
                      tackle this problem by applying separate, specialized models
                      for mechanical deformation and grain boundary migration
                      sequentially. Significant progress was made recognizing that
                      the Cosserat continuum represents an ideal framework for the
                      coupling between different mechanisms causing lattice
                      reorientation, since rotations are native degrees of freedom
                      in this setting.In this work we propose and implement a
                      multi-physics model, which couples Cosserat crystal
                      plasticity to Henry–Mellenthin–Plapp (HMP) type
                      orientation phase-field in a single thermodynamically
                      consistent framework for microstructure evolution. Compared
                      to models based on the Kobayashi–Warren–Carter (KWC)
                      phase-field, the HMP formulation removes the nonphysical
                      term linear in the gradient of orientation from the free
                      energy density, thus eliminating long-range interactions
                      between grain boundaries. Further, HMP orientation phase
                      field can handle inclination-dependent grain boundary
                      energies. We evaluate the model’s predictions and
                      numerical performance within a two-dimensional finite
                      element framework, and compare it to a previously published
                      results based on KWC phase-field coupled with Cosserat
                      mechanics.},
      cin          = {IAS-9},
      ddc          = {530},
      cid          = {I:(DE-Juel1)IAS-9-20201008},
      pnm          = {5111 - Domain-Specific Simulation $\&$ Data Life Cycle Labs
                      (SDLs) and Research Groups (POF4-511)},
      pid          = {G:(DE-HGF)POF4-5111},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:001402762100001},
      doi          = {10.1016/j.ijplas.2024.104201},
      url          = {https://juser.fz-juelich.de/record/1034975},
}