%0 Journal Article %A Zhou, Bijin %A Zhou, Hongrui %A Wang, Jie %A Zhu, Gaoming %T Effects of reinforcement distribution on stress heterogeneity in magnesium matrix composites: In-situ synchrotron experiments and crystal plasticity modeling %J Journal of alloys and compounds %V 1038 %@ 0925-8388 %C Lausanne %I Elsevier %M PUBDB-2025-03917 %P 182902 %D 2025 %Z Waiting for fulltext %X Premature failures of magnesium matrix composites (MMCs) reinforced with ceramic particles generally originate from stress concentrations in particle-agglomerated regions. This study investigates how the spatial distribution of SiC particles (SiCp) affects internal stress states in a SiCp/Mg-5Al composite through in-situ synchrotron tensile testing combined with multi-scale crystal plasticity modeling. Simulation of four microstructures with coarse intergranular SiCp (5 μm), refined intergranular SiCp (2 μm), intergranular-dominated SiCp, or balanced hybrid SiCp have performed. Key findings show that refining intergranular SiCp (from 5 μm to 2 μm) increases particle stress heterogeneity by 65 %F PUB:(DE-HGF)16 %9 Journal Article %R 10.1016/j.jallcom.2025.182902 %U https://bib-pubdb1.desy.de/record/637927