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@ARTICLE{Yang:892531,
      author       = {Yang, Mujin and King, Daniel. J. M. and Povstugar, Ivan and
                      Wen, Yuren and Luan, Junhua and Kuhn, Bernd and Jiao,
                      Zengbao and Wang, Cuiping and Wenman, M. R. and Liu,
                      Xingjun},
      title        = {{P}recipitation behavior in {G}-phase strengthened ferritic
                      stainless steels},
      journal      = {Acta materialia},
      volume       = {205},
      issn         = {1359-6454},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier Science},
      reportid     = {FZJ-2021-02139},
      pages        = {116542 -},
      year         = {2021},
      abstract     = {A series of G-phase strengthened ferritic stainless steels
                      Fe-20Cr-3Ni-3Si-X (X = 2Mn, 1Mn-2Ti, 1Mn-2Nb and 1Mn-2Ta)
                      are characterized after aging using experimental
                      (microhardness, TEM and APT) and theoretical (DFT)
                      techniques. The results indicate that the Ni16Mn6Si7 G-phase
                      shows sluggish precipitation during aging treatment. This
                      was attributed to the small difference in the enthalpy of
                      formation between the Ni16Mn6Si7 G- and BCC phase and the
                      requirement of high Ni:Fe ratio. A superfine Ni16Ti6Si7
                      G-phase was found to precipitate as a core accompanied with
                      an “envelope” of Fe2TiSi-L21 Heusler phase during early
                      aging (≤24 h) in the Ti containing alloy. This morphology
                      is predicted to occur due to early Ni clustering in ferrite
                      and a negative Ni concentration gradient away from the
                      cluster that favors Fe2TiSi formation. The G-phases show
                      only particle coarsening without obvious chemical
                      composition evolution for further aging up to 96 h. A
                      prominent hardness increase of 100-275 HV was also observed
                      during aging. These findings provide valuable insight into
                      methods for precipitating low lattice mismatch silicide
                      phases for the development of future high strength steels.},
      cin          = {ZEA-3 / IEK-2},
      ddc          = {670},
      cid          = {I:(DE-Juel1)ZEA-3-20090406 / I:(DE-Juel1)IEK-2-20101013},
      pnm          = {899 - ohne Topic (POF4-899)},
      pid          = {G:(DE-HGF)POF4-899},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000609936600021},
      doi          = {10.1016/j.actamat.2020.116542},
      url          = {https://juser.fz-juelich.de/record/892531},
}