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@ARTICLE{Maziarz:646666,
      author       = {Maziarz, Wojciech and Chulist, Robert and Chyzhyk, Ganna
                      and Wojcik, Anna and Kurtyka, Pawel and Sobula, Sebastian
                      and Schell, Norbert and Olejnik, Ewa},
      title        = {{E}ffect of microstructural heterogeneity on the
                      strengthening and fracture mechanism in in-situ cast
                      {T}i{C}/{A}l composites},
      journal      = {Materials and design},
      volume       = {264},
      issn         = {0264-1275},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier Science},
      reportid     = {PUBDB-2026-00913},
      pages        = {115756},
      year         = {2026},
      abstract     = {Structural heterogeneity is an inherent feature that occurs
                      practically in all cast materials. In this work,
                      wedemonstrated that the chemical heterogeneity resulting
                      from the SHS reaction of TiC formation in the aluminumAl1000
                      alloy bath can enhance the strength by refining the matrix
                      grains in in-situ cast TiC/Al1000 composites.Using advanced
                      characterization techniques including X-Ray synchrotron
                      radiation diffraction, (S)TEM-HREMand SEM-EBSD studies, we
                      identified two types of aluminum solid solutions within the
                      dendritic grains of theAl1000 matrix, distinguished by
                      different lattice parameters. These differences result from
                      the presence ofunreacted titanium, which locally forms a
                      supersaturated solid solution in the form of
                      nanoprecipitates with asize of about 10 nm and a smaller
                      lattice parameter compared to titanium-free regions. Another
                      structuralheterogeneity influencing the mechanical
                      properties and fracture of composites is the agglomeration
                      of TiCparticles driven by the pushing and engulfment of
                      particles at the crystallization front. Fractographic
                      analysisrevealed a correlation between mechanical properties
                      and wear resistance in TiC/Al1000 composites with
                      TiCcontents ranging from 5 to 15 $vol\%.$ In samples with
                      more than 10 $vol\%$ TiC, particle agglomeration
                      contributedto increased strength but reduced ductility, due
                      to weakened interfacial bonding and non-uniform
                      deformationunder load.},
      cin          = {DOOR ; HAS-User / Hereon},
      ddc          = {690},
      cid          = {I:(DE-H253)HAS-User-20120731 / I:(DE-H253)Hereon-20210428},
      pnm          = {6G3 - PETRA III (DESY) (POF4-6G3)},
      pid          = {G:(DE-HGF)POF4-6G3},
      experiment   = {EXP:(DE-H253)P-P07-20150101},
      typ          = {PUB:(DE-HGF)16},
      doi          = {10.1016/j.matdes.2026.115756},
      url          = {https://bib-pubdb1.desy.de/record/646666},
}