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@ARTICLE{Brasche:888762,
      author       = {Brasche, Frederike and Haase, Christian and
                      Lipińska-Chwałek, Marta and Mayer, Joachim and Molodov,
                      Dmitri A.},
      title        = {{C}ombined κ-carbide precipitation and recovery enables
                      ultra-high strength and ductility in light-weight steels},
      journal      = {Materials science and engineering / A},
      volume       = {795},
      issn         = {0921-5093},
      address      = {Amsterdam},
      publisher    = {Elsevier},
      reportid     = {FZJ-2020-05191},
      pages        = {139928 -},
      year         = {2020},
      abstract     = {Light-weight high-manganese steels with high aluminum and
                      carbon contents are known to possess high age-hardening
                      potential due to the precipitation of nano-sized
                      κ-carbides. Although in recrystallized material the
                      precipitation of the κ-phase has been widely researched,
                      the influence of pre-deformation/deformation microstructure
                      on the formation of κ-carbides is still unknown. The
                      present study aims at gaining an increased understanding of
                      the underlying mechanisms (and their interplay) active
                      during annealing after pre-deformation, i.e. concurrent
                      strengthening by precipitation of κ-carbides and softening
                      by recovery/recrystallization. Therefore, a
                      Fe-29.8Mn-7.65Al-1.11C steel was age-hardened in
                      deformed/cold-rolled as well as in recrystallized condition.
                      The microstructure and tensile behavior of the material in
                      both states after annealing treatments at 600–800 °C were
                      investigated by means of light optical microscopy,
                      (high-resolution) scanning transmission electron microscopy,
                      x-ray diffraction and hardness measurements as well as
                      tensile tests. The focus was put on understanding the
                      interplay between microstructural defects (e.g.
                      dislocations), precipitation of κ-carbides, and
                      recovery/recrystallization. The fundamental dependence of
                      strengthening and softening mechanisms on the precondition,
                      annealing parameters and correlation with the mechanical
                      properties are discussed.},
      cin          = {ER-C-2},
      ddc          = {530},
      cid          = {I:(DE-Juel1)ER-C-2-20170209},
      pnm          = {143 - Controlling Configuration-Based Phenomena (POF3-143)
                      / DFG project 29898171 - SFB 761: Stahl - ab initio.
                      Quantenmechanisch geführtes Design neuer
                      Eisenbasis-Werkstoffe (29898171)},
      pid          = {G:(DE-HGF)POF3-143 / G:(GEPRIS)29898171},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000576173800001},
      doi          = {10.1016/j.msea.2020.139928},
      url          = {https://juser.fz-juelich.de/record/888762},
}