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@ARTICLE{Muoz:613801,
      author       = {Muñoz, Jairo Alberto and Barriobero-Vila, Pere and Stark,
                      Andreas and Schell, Norbert and Zhu, Yuntian and Cabrera,
                      José María},
      title        = {{S}oftening kinetics and mechanism during the annealing of
                      an {A}l-{S}i alloy produced by laser powder bed fusion},
      journal      = {Journal of alloys and compounds},
      volume       = {1005},
      number       = {176141},
      issn         = {0925-8388},
      address      = {Lausanne},
      publisher    = {Elsevier},
      reportid     = {PUBDB-2024-05628},
      pages        = {176141},
      year         = {2024},
      note         = {The Deutsches Elektronen-Synchrotron (DESY) is acknowledged
                      for theprovision of synchrotron radiation facilities in the
                      framework of the I-20221372 EC proposal. Waiting for
                      fulltext},
      abstract     = {This paper elucidates the softening kinetics during
                      isothermal annealing of an AlSi11 alloy manufactured by
                      laserpowder bed fusion (L-PBF) by using in situ high-energy
                      synchrotron X-ray diffraction complemented bymicrostructure
                      microscopy analysis. Annealing in the temperature range of
                      20 ◦C to 500 ◦C for one hour led toevolutions in the
                      as-built L-PBF cellular structure, including partial
                      fragmentation of the cell boundaries between20 ◦C and 300
                      ◦C; the breakdown and transformation into ultrafine
                      Si-enriched particles in the range of 300 ◦C to400 ◦C;
                      and subsequently coarsening at temperatures exceeding 400
                      ◦C. The evolution of the crystallite size for Siis
                      consistent with the Ostwald ripening equation with an
                      activation energy of 75.8 kJ mol􀀀 1, while the Al
                      peaksregistered only marginal variations through all the
                      thermal cycle. The examination of dislocation densities
                      andgrain sizes, which varied from 4 × 1014 m􀀀 2 to 1 ×
                      1014 m􀀀 2 and 15 μm to 13 μm respectively, in the
                      temperaturerange of 20 ◦C to 500 ◦C, revealed a
                      practical absence of recovery and recrystallization
                      phenomena in the Almatrix. On the other hand, Si diffusion
                      from the supersaturated Al matrix and the coalescence of
                      particles assistedthe cellular structure transformation.
                      Thus, the decrease in yield strength observed in the AlSi11
                      alloy subjectedto annealing treatments is primarily driven
                      by a thermally assisted softening process, which is
                      controlled by thediffusion of Si, rather than the
                      annihilation of dislocations and grain growth in the Al
                      matrix.},
      cin          = {DOOR ; HAS-User / Hereon},
      ddc          = {540},
      cid          = {I:(DE-H253)HAS-User-20120731 / I:(DE-H253)Hereon-20210428},
      pnm          = {6G3 - PETRA III (DESY) (POF4-6G3) / FS-Proposal: I-20221372
                      EC (I-20221372-EC)},
      pid          = {G:(DE-HGF)POF4-6G3 / G:(DE-H253)I-20221372-EC},
      experiment   = {EXP:(DE-H253)P-P07-20150101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:001312576900001},
      doi          = {10.1016/j.jallcom.2024.176141},
      url          = {https://bib-pubdb1.desy.de/record/613801},
}