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@ARTICLE{Li:636255,
      author       = {Li, Shaopeng and Xiao, Shan and Li, Zhipeng and Zhu,
                      Gaoming and Le, Jianwen and Liu, Yuyang and Wei, Zichao and
                      Huang, Guangfa and Hegedüs, Zoltan and Lienert, Ulrich and
                      Sui, Xiaodong and Han, Yuanfei and Lu, Weijie and Zhang, Di},
      title        = {{T}he synergistic strength-ductility mechanism of the
                      in-situ constructed interfacial/intragranular hierarchical
                      structure in nano particulate reinforced
                      ({T}i{B}+{L}a$_2${O}$_3$)/{T}i composites},
      journal      = {Composites / Part B},
      volume       = {305},
      issn         = {1359-8368},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier},
      reportid     = {PUBDB-2025-03637},
      pages        = {112737},
      year         = {2025},
      abstract     = {The strength-ductility trade-off has hindered the
                      widespread application of powder metallurgy (PM) titanium
                      matrix composites (TMCs). In-situ planting nano-particles as
                      ultra-fine networks into the TMCs powder and constructing
                      the interfacial/intragranular hierarchical microstructure
                      have emerged as a promising strategy to overcome the
                      strength-ductility trade-off. In the present work, we
                      precisely controlled the distribution of the network
                      nano-particles by adjusting the sintering temperatures and
                      successfully transformed the ultrafine network into the
                      interfacial/intragranular structure. The well-designed (TiB
                      + La$_2$O$_3$)/IMI834 TMCs demonstrated exceptional
                      mechanical properties, achieving a tensile strength of 1158
                      MPa while maintaining an elongation exceeding 8.6
                      \%—performance comparable to wrought TMCs without
                      requiring thermo-mechanical processing. The dislocation
                      evolution and the slip activation behavior were investigated
                      by in-situ synchrotron X-ray diffraction experiments and
                      interrupted in-situ SEM-EBSD observations, which provided
                      new insights into the strength-ductility synergy mechanism
                      of the interfacial/intragranular nano-particles. These
                      studies revealed that the hierarchical structure enhanced
                      the dislocation storage capacity while simultaneously
                      promoting <c+a> slip activation. This dual effect
                      facilitated multi-system sliding, which effectively
                      optimized dislocation distribution and reduced stress
                      concentration. This study visually elucidates the
                      synergistic strength-ductility mechanism of the
                      interfacial/intragranular hierarchical structure and
                      establishes a straightforward and reliable approach for
                      manufacturing high-performance PM TMCs.},
      cin          = {FS DOOR-User / FS-PET-D},
      ddc          = {660},
      cid          = {$I:(DE-H253)FS_DOOR-User-20241023$ /
                      I:(DE-H253)FS-PET-D-20190712},
      pnm          = {632 - Materials – Quantum, Complex and Functional
                      Materials (POF4-632) / 6G3 - PETRA III (DESY) (POF4-6G3)},
      pid          = {G:(DE-HGF)POF4-632 / G:(DE-HGF)POF4-6G3},
      experiment   = {EXP:(DE-H253)P-P21.2-20150101},
      typ          = {PUB:(DE-HGF)16},
      doi          = {10.1016/j.compositesb.2025.112737},
      url          = {https://bib-pubdb1.desy.de/record/636255},
}