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@PHDTHESIS{Ewald:973962,
      author       = {Ewald, Simon},
      othercontributors = {Schleifenbaum, Johannes Henrich and Krupp, Ulrich},
      title        = {{U}ntersuchung der {V}erarbeitbarkeit von
                      {P}ulvermischungen im {L}aser {P}owder {B}ed {F}usion; 1.
                      {A}uflage},
      school       = {RWTH Aachen University},
      type         = {Dissertation},
      address      = {Aachen},
      publisher    = {Apprimus Verlag},
      reportid     = {RWTH-2023-11117},
      isbn         = {978-3-98555-187-3},
      series       = {Ergebnisse aus der additiven Fertigung},
      pages        = {1 Online-Ressource : Illustrationen},
      year         = {2023},
      note         = {Druckausgabe: 2023. - Auch veröffentlicht auf dem
                      Publikationsserver der RWTH Aachen University; Dissertation,
                      RWTH Aachen University, 2023},
      abstract     = {The development of new materials for metal additive
                      manufacturing, especially for LaserPowder Bed Fusion, is
                      becoming more and more important in science and industry.Up
                      to now, mainly pre-alloyed powders are used as feedstock,
                      which are often expensive, depending on their chemical
                      composition and not suitable for rapid adjustment ofthe
                      chemical composition. Thus, pre-alloyed powders are limited
                      for the development of new alloys for Laser Powder Bed
                      Fusion. A new approach is to generate the desiredchemical
                      composition by powder blending and thus beeing able to
                      produce and test new alloys fast and flexible. In the
                      present work, the processability of powder blends
                      isinvestigated in comparison to pre-alloyed powder. As
                      example alloy a FeMnAlC-system with a content of 5–7
                      $wt\%$ aluminum is used. The work is divided into four main
                      investigation steps. First, a detailed characterization of
                      the powders is performed and the chemical distribution of
                      the powder blends on the build platform before and after
                      processing is determined. Consequently, cubes for the
                      analysis of the relative density depending on the process
                      parameters are produced and analyzed. This is followed by
                      investigations of the chemical distribution of the elements
                      within the melt pool, the microstructure and the mechanical
                      properties. Finally, the results are critically discussed
                      and the usability is demonstrated by producing thin-walled
                      structures.},
      cin          = {421510},
      ddc          = {620},
      cid          = {$I:(DE-82)421510_20170406$},
      pnm          = {DFG project 390621612 - EXC 2023: Internet of Production
                      (IoP) (390621612) / WS-B1.I - Integrated Computational
                      Materials Engineering (X080067-WS-B1.I)},
      pid          = {G:(GEPRIS)390621612 / G:(DE-82)X080067-WS-B1.I},
      typ          = {PUB:(DE-HGF)11 / PUB:(DE-HGF)3},
      doi          = {10.18154/RWTH-2023-11117},
      url          = {https://publications.rwth-aachen.de/record/973962},
}