% IMPORTANT: The following is UTF-8 encoded.  This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.

@ARTICLE{Ledieu:903584,
      author       = {Ledieu, J. and Feuerbacher, M. and Thomas, C. and de Weerd,
                      M.-C. and Šturm, S. and Podlogar, M. and Ghanbaja, J. and
                      Migot, S. and Sicot, M. and Fournée, V.},
      title        = {{T}he (110) and (320) surfaces of a {C}antor alloy},
      journal      = {Acta materialia},
      volume       = {209},
      issn         = {1359-6454},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier Science},
      reportid     = {FZJ-2021-05238},
      pages        = {116790 -},
      year         = {2021},
      abstract     = {The (110) and (320) surfaces of the single-phase FeCrMnNiCo
                      solid solution have been studied on two adjacent millimeter
                      size grains using surface science and transmission electron
                      microscopy (TEM) techniques. The structural and chemical
                      evolutions of the high entropy alloy (HEA) surfaces have
                      been determined for various sputtering conditions, annealing
                      temperatures and durations. Up to 873 K, angle-resolved
                      X-ray photoelectron spectroscopy measurements indicate a
                      clear Mn and Ni surface co-segregation. We propose that the
                      surface segregation of Mn is driven by its low surface
                      energy. The attractive interaction between Mn and Ni
                      promotes Ni segregation which accompanied the Mn diffusion
                      to the surface. Regarding the structures investigated by low
                      energy electron diffraction and scanning tunneling
                      microscopy, the (320) surface presents a terraced morphology
                      with an ordered structure consistent with a () termination.
                      On the contrary, the (110) surface reveals an important
                      degree of structural disorder and local reconstructions. Its
                      highly anisotropic morphology resembles rows propagating
                      along the [001] direction. Above 873 K, Mn desorption occurs
                      while the Ni content keeps increasing linearly with the
                      temperature. TEM analysis show no evidence for HEA
                      decomposition into metallic or intermetallic phases even
                      after repeated annealing and sputtering cycles. The above
                      results set the upper temperature limit above which the
                      surface stoichiometry departs from the quinary HEA concept.
                      It also defines the temperature range for the use of
                      FeCrMnNiCo based coating under high vacuum conditions and
                      for aerospace applications.},
      cin          = {ER-C-1},
      ddc          = {670},
      cid          = {I:(DE-Juel1)ER-C-1-20170209},
      pnm          = {5353 - Understanding the Structural and Functional Behavior
                      of Solid State Systems (POF4-535)},
      pid          = {G:(DE-HGF)POF4-5353},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000641587700001},
      doi          = {10.1016/j.actamat.2021.116790},
      url          = {https://juser.fz-juelich.de/record/903584},
}