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@ARTICLE{Vayyala:1008592,
      author       = {Vayyala, Ashok and Povstugar, Ivan and Naumenko, Dmitry and
                      Quadakkers, Willem J. and Hattendorf, Heike and Mayer,
                      Joachim},
      title        = {{E}ffect of gas composition on the oxide scale growth
                      mechanisms in a ferritic steel for solid oxide cell
                      interconnects},
      journal      = {Corrosion science},
      volume       = {221},
      issn         = {0010-938x},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier Science},
      reportid     = {FZJ-2023-02425},
      pages        = {111317 -},
      year         = {2023},
      abstract     = {The oxidation behavior of a ferritic steel
                      Fe-23Cr-0.5Mn-0.6 Nb-0.1Ti $(at\%)$ considered for
                      application in solid oxide cell (SOC) stack interconnects
                      was studied at 800 °C. The oxidation kinetics and oxide
                      scale microstructure formed in $Ar-20\%O2,$
                      $Ar-4\%H2-4\%H2O$ and $Ar-1\%CO-1\%CO2$ atmospheres,
                      simulating the SOC operation environments, were investigated
                      by thermogravimetry (TG) in conjunction with electron
                      microscopy (SEM/TEM) and atom probe tomography (APT). In all
                      three environments multilayered oxide scales formed,
                      consisting of Mn-Cr spinel on top of Cr2O3 and an additional
                      Nb-rich oxide layer at the chromia-alloy interface. The
                      initially faster oxidation in the low pO2 gases was
                      attributed to formation of porous chromia scales compared to
                      a dense scale formed in the high pO2 (Ar-O2) atmosphere. APT
                      revealed segregation of minor alloying elements (Mn, Nb and
                      Ti) to chromia grain boundaries in all three simulated SOC
                      environments in quantitatively similar amounts, suggesting
                      their similar effect on the ionic transport through the
                      oxide scale. The findings indicate that oxygen activity in
                      the test gas plays a dominating role in governing the
                      oxidation kinetics and the oxide scale microstructure of the
                      studied ferritic steel.},
      cin          = {ER-C-2 / IEK-2},
      ddc          = {670},
      cid          = {I:(DE-Juel1)ER-C-2-20170209 / I:(DE-Juel1)IEK-2-20101013},
      pnm          = {5353 - Understanding the Structural and Functional Behavior
                      of Solid State Systems (POF4-535) / SFB 1120 B08 -
                      Untersuchung präzisionsbestimmender Faktoren zur
                      Minimierung von Verzug im Kokillen- und Druckgussprozess
                      (B08) (260071920) / 1231 - Electrochemistry for Hydrogen
                      (POF4-123)},
      pid          = {G:(DE-HGF)POF4-5353 / G:(GEPRIS)260071920 /
                      G:(DE-HGF)POF4-1231},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:001025766900001},
      doi          = {10.1016/j.corsci.2023.111317},
      url          = {https://juser.fz-juelich.de/record/1008592},
}