.png){kind=icon}
.png){kind=icon}
Return
Toughening aluminum matrix composites via spatial decoupling of phase interfaces and grain boundaries
.png){kind=icon}
OA
AI
Z
S
Z
L
D
B
Z
DOI：10.1080/21663831.2026.2678516.png)
.png){kind=icon}
Original request for help.png){kind=icon}
Share.png){kind=icon}
Save
Abstract
En 中文
To overcome poor fracture toughness in particle-reinforced aluminum matrix composites (PRAMCs), we engineered a coarse-grained architecture featuring the intragranular dispersion of micron-sized reinforcements. Fabricated via extrusion-forging-rolling, a 17 vol.% B4C/Al-Zn-Mg-Cu composite achieved a 73% toughness improvement without sacrificing strength. This exceptional fracture toughness originates from spatially decoupling phase interfaces from grain boundaries, which prevents rapid damage propagation. A synergy was identified between crack deflection induced by low-angle grain boundaries and sufficient plastic deformation in the coarse-grained matrix. This intragranular design offers a robust paradigm for developing highly damage-tolerant PRAMCs.
Keywords:
Aluminum matrix composites
B4C particles
Fracture toughness
Grain boundary
Intragranular particle distribution
Journal
IF:
7.9
Papers:
1.1K
Citations:
6.4K
Organization
Cited Papers