Investigation on microstructure and fracture mechanism of n-SiCp/7075 Al composites

Zuo, Cheng Ming; Xiao, Du; Luan, Dao Cheng; Zheng, Kai; Hu, Zhijia; Li, Yuan; Deng, Tian Xin; Ren, Yang; Wang, Zheng Yun

doi:10.1007/s13204-020-01544-2

Cited by 6 publications

(1 citation statement)

References 30 publications

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“…When the local stress surpasses the breaking strength of the material, the matrix will fracture and tear. The phenomena observed suggests that the fracture of 7075 aluminium alloy occurs via the formation of many micropores, and the mechanism of fracture involves the aggregation of these micropores [52].…”

Section: Morphologymentioning

confidence: 98%

Synergistic effect of graphene nanoplatelets and titanium dioxide nanopowder-reinforced aluminium nanohybrid composites on mechanical properties

Chaurasia,

Sarangi

2024

Funct. Compos. Struct.

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Due to their effectiveness, lightweight materials have gained international attention in recent decades, with industrial sectors being the primary users of them. Metal matrix composites with nanohybrid reinforcement are a unique composite system combination that enhances the material’s mechanical qualities. In the present article, the mechanical properties of graphene nanoplatelets (GNP) and titanium dioxide (TiO2)-reinforced aluminium 7075 alloy are discussed with varying weight percentages of reinforcements prepared by the stir casting technique. 1 wt.% GNP with and 3 wt.% TiO2-reinforced composites show optimum properties within the range of reinforcement studied, with a 71.9% increment in tensile strength and an 86.6% improvement in microhardness observed; however, elongation is decreased by 31.7% in contrast to the base alloy. Maximum toughness is found to be in 0.5 wt.% GNP with 1 wt.% TiO2-reinforced nanohybrid composites. XRD results show phase analysis. SEM analysis of the fractured surface reveals a mixture of ductile and brittle fractures.

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Section: Morphologymentioning

confidence: 98%