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@ARTICLE{Peng:644960,
      author       = {Peng, Sizhe and Jiang, Zhenfei and Wang, Zhong and Liu,
                      Junchen and Zhu, Gaoming and Liu, Yinghang and Song, Zhe and
                      Zhu, Dezhi},
      title        = {{C}o-free {A}l$_{0.5}${C}r{N}i$_{1.5}${F}e$_2$
                      multi-principal element alloy with heterogeneous structure
                      and excellent strength-ductility combination},
      journal      = {Journal of alloys and compounds},
      volume       = {1021},
      issn         = {0925-8388},
      address      = {Lausanne},
      publisher    = {Elsevier},
      reportid     = {PUBDB-2026-00503},
      pages        = {179563},
      year         = {2025},
      note         = {Waiting for fulltext},
      abstract     = {This study investigates a cost-effective, cobalt-free
                      Al$_{0.5}$CrNi$_{1.5}$Fe$_2$ multi-principal element alloy,
                      based on the most studied AlCoCrFeNi alloy system. The alloy
                      underwent thermal mechanical treatment to induce partial
                      recrystallization, resulting in a multi-phase, multi-scale
                      heterogeneous microstructure. After cold rolling the
                      Al$_{0.5}$CrNi$_{1.5}$Fe$_2$ alloy to 80 \% reduction and
                      annealing at 800°C for 1 hour, a heterogeneous structure
                      predominantly consisting of “fine-grained recrystallized
                      regions and nano-grained un-recrystallized regions” was
                      formed. The phase compositions of both regions included a
                      disordered FCC matrix and dispersed ordered BCC (B2)
                      precipitates enriched in Al and Ni, as well as disordered
                      BCC precipitates enriched in Fe and Cr. The alloy exhibited
                      a yield strength of 1035 MPa and an elongation of
                      20.8 \%. Compared to its as-cast counterpart, the
                      elongation decreased slightly, while the yield strength
                      increased by 238 \%, achieving an excellent combination of
                      high strength, high ductility, and low cost. Cyclic tensile
                      testing revealed that the heterogeneous deformation-induced
                      stress, driven by the heterogeneous microstructure,
                      accounted for over 49 \% of the flow stress. This stress,
                      representing the dominant strengthening mechanism, plays a
                      crucial role in maintaining both high strength and ductility
                      in this Co-free alloy.},
      cin          = {FS-PETRA-D},
      ddc          = {540},
      cid          = {I:(DE-H253)FS-PETRA-D-20210408},
      pnm          = {632 - Materials – Quantum, Complex and Functional
                      Materials (POF4-632)},
      pid          = {G:(DE-HGF)POF4-632},
      experiment   = {EXP:(DE-MLZ)NOSPEC-20140101},
      typ          = {PUB:(DE-HGF)16},
      doi          = {10.1016/j.jallcom.2025.179563},
      url          = {https://bib-pubdb1.desy.de/record/644960},
}