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@ARTICLE{Shen:623735,
      author       = {Shen, Jiajia and Kim, Rae Eon and Mestre, Martim and Lopes,
                      Joao and He, Jingjing and Yang, Jin and Zeng, Zhi and
                      Schell, N. and Kim, Hyoung Seop and Oliveira, J. P.},
      title        = {{U}nveiling the macrosegregation formation mechanism and
                      its impact on properties in dissimilar welding between
                      {C}o{C}r{F}e{M}n{N}i high-entropy alloy and 316 stainless
                      steel},
      journal      = {Journal of materials science},
      volume       = {60},
      number       = {9},
      issn         = {0022-2461},
      address      = {Dordrecht [u.a.]},
      publisher    = {Springer Science + Business Media B.V},
      reportid     = {PUBDB-2025-00756},
      pages        = {4432 - 4457},
      year         = {2025},
      abstract     = {High-entropy alloys (HEAs) are increasingly preferred as
                      structural materials innuclear engineering and aerospace
                      applications. These fields often require thedesign of
                      dissimilar joints. Here, gas tungsten arc welding (GTAW) was
                      used forthe first time to join CoCrFeMnNi HEAs with 316
                      stainless steel. Microstructuralcharacterization, including
                      electron microscopy, high-energy synchrotron
                      X-raydiffraction, and thermodynamic calculations, along with
                      micro- and macroscalemechanical assessments, was utilized.
                      These methods were instrumental in evaluatingand clarifying
                      the effects of the non-equilibrium solidification and
                      weldthermal cycle on the microstructure evolution of the
                      joint. In the fusion zone(FZ), distinctive peninsula-shaped
                      macroscopic segregation area is observed,with its formation
                      being related to the liquidus temperature differences
                      betweenthe base materials (BMs) and the welded metal,
                      compounded by the Marangonieffect. The weld thermal cycle
                      was found to promote multiple solid-state
                      phasetransformations in the heat-affected zone (HAZ)
                      adjacent to the CoCrFeMnNiBM, leading to varying degrees of
                      softening. The HAZ near the 316 stainless steelBM maintained
                      its original microstructural and mechanical properties.
                      Fracturepredominantly occurred in the FZ, mainly due to the
                      interplay of large columnargrains, macrosegregation effects,
                      and emergence of BCC and σ brittle phases dueto the complex
                      chemistry within this region. Thermodynamic modeling
                      validatedthe formation of these phases. The ultimate tensile
                      strength and elongation atroom temperature were
                      approximately ≈493 MPa and $≈10.70\%,$ respectively.},
      cin          = {DOOR ; HAS-User / Hereon},
      ddc          = {670},
      cid          = {I:(DE-H253)HAS-User-20120731 / I:(DE-H253)Hereon-20210428},
      pnm          = {6G3 - PETRA III (DESY) (POF4-6G3) / CALIPSOplus -
                      Convenient Access to Light Sources Open to Innovation,
                      Science and to the World (730872)},
      pid          = {G:(DE-HGF)POF4-6G3 / G:(EU-Grant)730872},
      experiment   = {EXP:(DE-H253)P-P07-20150101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:001428313100001},
      doi          = {10.1007/s10853-025-10708-w},
      url          = {https://bib-pubdb1.desy.de/record/623735},
}