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@ARTICLE{Lazurenko:628053,
      author       = {Lazurenko, Daria and Dovzhenko, G. D. and Emurlaev, K. I.
                      and Shikalov, V. S. and Alexandrova, N. S. and Domarov, E.
                      V. and Ruktuev, A. A. and Kuzmin, R. I. and Bataev, I. A.},
      title        = {{E}ffect of chemical inhomogeneity on the structure and
                      properties of the two-layer {T}i{A}l-based coating obtained
                      by non-vacuum electron beam cladding: {E}xperimental
                      investigations and density functional theory simulations},
      journal      = {Journal of alloys and compounds},
      volume       = {1006},
      issn         = {0925-8388},
      address      = {Lausanne},
      publisher    = {Elsevier},
      reportid     = {PUBDB-2025-01705},
      pages        = {176239},
      year         = {2024},
      note         = {Russische Institute beteiligt!},
      abstract     = {Non-vacuum electron beam cladding is a highly effective
                      technology for producing protective coatings on metal
                      workpieces. In this study, the 3.8 mm thick TiAl-based
                      coating with Cr and Nb additions was obtained on the Ti
                      alloy substrate in two passes of the electron beam. To
                      evaluate inhomogeneity of the two-layer coating,
                      energy-dispersive synchrotron X-ray diffraction (EDSXRD) in
                      combination with energy-dispersive X-ray spectroscopy (EDX)
                      was applied. It was found that in the direction from the top
                      of the coating to the substrate, the dilution of the
                      cladding layers with Ti increased. It influenced the phase
                      constitution of the coating and led to a variation in the
                      chemical composition of different phases (α2-Ti3Al,
                      β-phase, and TiN). The properties of the first (lower) and
                      the second (upper) cladding layers were evaluated
                      separately. The upper layer exhibited greater oxidation
                      resistance than the lower one due to the presence of the
                      γ-phase, which has superior high-temperature stability
                      compared to the α2-Ti3Al phase, predominant in the coating.
                      The influence of varying chemical composition on the
                      oxidation resistance was also estimated using density
                      functional theory (DFT) simulations. It was found that
                      decrease in Al content in the α2 phase leads to an increase
                      in oxygen absorption energy. This could potentially result
                      in a decrease in oxidation resistance. Wear resistance of
                      the first and the second cladding layers was at the same
                      level mainly due to the low contribution of minor phases.
                      Additionally, DFT simulations show that the variations in
                      chemical composition of the major phase (Ti3Al) are not
                      likely to impact the coating wear resistance.},
      cin          = {DOOR ; HAS-User},
      ddc          = {540},
      cid          = {I:(DE-H253)HAS-User-20120731},
      pnm          = {6G3 - PETRA III (DESY) (POF4-6G3)},
      pid          = {G:(DE-HGF)POF4-6G3},
      experiment   = {EXP:(DE-H253)P-P61.1-20150101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:001307691400001},
      doi          = {10.1016/j.jallcom.2024.176239},
      url          = {https://bib-pubdb1.desy.de/record/628053},
}