In Situ Study on Fracture Behavior of Z-Pinned Carbon Fiber-Reinforced Aluminum Matrix Composite via Scanning Electron Microscope (SEM)

Zhang, Yunhe; Wang, Sian; Zhao, Xiwang; Wang, Fanming; Wu, Guanglei

doi:10.3390/ma12121941

Cited by 5 publications

(1 citation statement)

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“…Metal matrix composites are widely used in aerospace and automotive industries for their excellent properties such as high strength-to-weight ratio and low coefficient of thermal expansion. In recent years, fruitful results have been achieved by using nano-phase reinforced metal matrix composites such as carbon nanotubes and graphene [ 12 , 13 ], which have led to the improvement of the composites in terms of hardness, strength and wear resistance [ 14 , 15 , 16 , 17 , 18 ]. Graphene is highly preferred for its excellent mechanical properties such as high Young’s modulus and high strength.…”

Section: Introductionmentioning

confidence: 99%

Effect of Temperatures and Graphene on the Mechanical Properties of the Aluminum Matrix: A Molecular Dynamics Study

Huang

Chen

et al. 2023

Materials

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Graphene has become an ideal reinforcement for reinforced metal matrix composites due to its excellent mechanical properties. However, the theory of graphene reinforcement in graphene/aluminum matrix composites is not yet well developed. In this paper, the effect of different temperatures on the mechanical properties of the metal matrix is investigated using a classical molecular dynamics approach, and the effects of the configuration and distribution of graphene in the metal matrix on the mechanical properties of the composites are also described in detail. It is shown that in the case of a monolayer graphene-reinforced aluminum matrix, the simulated stretching process does not break the graphene as the strain increases, but rather, the graphene and the aluminum matrix have a shearing behavior, and thus, the graphene “pulls out" from the aluminum matrix. In the parallel stretching direction, the tensile stress tends to increase with the increase of the graphene area ratio. In the vertical stretching direction, the tensile stress tends to decrease as the percentage of graphene area increases. In the parallel stretching direction, the tensile stress of the system tends to decrease as the angle between graphene and the stretching direction increases. It is important to investigate the effect of a different graphene distribution in the aluminum matrix on the mechanical properties of the composites for the design of high-strength graphene/metal matrix composites.

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