TY - JOUR
T1 - In-situ (Ti,Nb)C/Graphene synergistic enhancement of strength and toughness in IN718 composites
AU - Ma, Shuan
AU - Zhang, Wei
AU - Yang, Yanjie
AU - Zhou, Shiqi
AU - Du, Quanbin
AU - Li, Ang
AU - Wang, Shaolan
AU - Liu, Mabao
N1 - Publisher Copyright:
© 2025 Elsevier B.V.
PY - 2025/4
Y1 - 2025/4
N2 - Graphene shows promise as a reinforcement for metal matrix composites, though its tendency to agglomerate limits uniform distribution. This study presents a facile in-situ approach to produce graphene from graphite balls to reinforce Inconel718. The process yielded a (Ti,Nb)C/graphene core-shell structure via 3D rock milling and spark plasma sintering (SPS), enhancing graphene nanosheets (GNSs) uniformity and load transfer. Using scanning electron microscopy (SEM) and high-angle annular dark-field scanning transmission electron microscopy (HAADF-STEM), we analyzed the microstructure and mechanical properties of graphene nanosheets-IN718 (GNSs-IN718) composites. The 0.3GNSs-IN718 composite exhibited improved microstructure and mechanical properties, driven by grain refinement, dislocation strengthening, and load transfer, verified through molecular dynamics simulations. This approach offers new directions for metal matrix composites design in aerospace.
AB - Graphene shows promise as a reinforcement for metal matrix composites, though its tendency to agglomerate limits uniform distribution. This study presents a facile in-situ approach to produce graphene from graphite balls to reinforce Inconel718. The process yielded a (Ti,Nb)C/graphene core-shell structure via 3D rock milling and spark plasma sintering (SPS), enhancing graphene nanosheets (GNSs) uniformity and load transfer. Using scanning electron microscopy (SEM) and high-angle annular dark-field scanning transmission electron microscopy (HAADF-STEM), we analyzed the microstructure and mechanical properties of graphene nanosheets-IN718 (GNSs-IN718) composites. The 0.3GNSs-IN718 composite exhibited improved microstructure and mechanical properties, driven by grain refinement, dislocation strengthening, and load transfer, verified through molecular dynamics simulations. This approach offers new directions for metal matrix composites design in aerospace.
KW - 3D rock-milling
KW - GNSs-IN718 composite
KW - Graphene
KW - Mechanical properties
KW - Spark plasma sintering
UR - https://www.scopus.com/pages/publications/85217790263
U2 - 10.1016/j.msea.2025.148039
DO - 10.1016/j.msea.2025.148039
M3 - 文章
AN - SCOPUS:85217790263
SN - 0921-5093
VL - 927
JO - Materials Science and Engineering: A
JF - Materials Science and Engineering: A
M1 - 148039
ER -