Fabrication of a new Al-Mg/graphene nanocomposite by multi-pass friction-stir processing: Dispersion, microstructure, stability, and strengthening

Khodabakhshi, F.; Arab, Seyed Mohammad; Švec, P.; Gerlich, A.P.

doi:10.1016/j.matchar.2017.08.009

Cited by 140 publications

(44 citation statements)

References 54 publications

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“…Khodabakhshi et al [30] Al-Mg SiC groove The main strengthening mechanism was the grain boundary strengthening.…”

Section: Mahmoud Et Al [70]mentioning

confidence: 99%

“…Multi-pass FSP has been widely used in the production of composites. Compared with single-pass FSP, composites fabricated via multi-pass FSP have a more homogeneous strengthening phase distribution, and in situ reactions during the FSP propagate more thoroughly [29][30][31][32].…”

Section: Influence Of Process Parametersmentioning

confidence: 99%

“…This effectively avoids burning of the strengthening phase and the formation of harmful phases. There are many kinds of reinforced particles commonly added to the FSP process including SiC [13,43], B 4 C [39,47,48], GNPs [30], CNTs [37], and Al 2 O 3 [45], etc., shown in Table 2.…”

Section: Preparation Of Superplastic Materialsmentioning

confidence: 99%

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Research Status and Prospect of Friction Stir Processing Technology

Liu

Zhao

2019

Coatings

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Friction stir processing (FSP) is a novel solid-phase processing technique that is derived from friction stir welding (FSW). The microstructure of the base metal can be modified with the friction heat and stir function during processing. It can be used to fabricate surface composites and in situ composites by adding reinforced particles into the metal matrix via FSP. Friction stir processing can significantly improve the hardness, wear resistance, ductility, etc., while preventing defects caused by material melting. It is an ideal material processing technology and has good prospects in the field of superplastic materials and for the preparation of metal matrix composites. This paper reviews research developments into the principle, process, and applications of FSP technology as well as its future research directions and development prospects.

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“…Khodabakhshi et al [30] Al-Mg SiC groove The main strengthening mechanism was the grain boundary strengthening.…”

Section: Mahmoud Et Al [70]mentioning

confidence: 99%

Section: Influence Of Process Parametersmentioning

confidence: 99%

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Research Status and Prospect of Friction Stir Processing Technology

Liu

Zhao

2019

Coatings

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“…where G and b represent the shear modulus of the aluminium matrix (26.2 GPa (Khodabakhshi et al 2017)) and Burgers vector (0.286 nm (Khodabakhshi et al 2017)) respectively; and λ is the interparticle spacing between the dispersoids (taken as 100 nm). The ΔH Orowan is calculated to be 39.7 HV.…”

Section: Hardnessmentioning

confidence: 99%

“…Another contributing mechanism is from the thermal mismatch between the GNSs (1 × 10 − 6 /K) and the aluminium matrix (~23.6 × 10 − 6 /K). The hardness increase ΔH CTE could be expressed as (Khodabakhshi et al 2017):…”

Section: Hardnessmentioning

confidence: 99%

Microstructure and mechanical properties of aluminium-graphene composite powders produced by mechanical milling

Zhang

Chen

Zhao

et al. 2018

Mech Adv Mater Mod Process

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Background: Graphene has been reported to be a promising nanofiller in fabricating advanced metal matrix composites. Methods: Graphene nanosheets (GNSs) have been incorporated into an aluminium matrix composite using mechanical milling and hot pressing in the current study. Results: The SEM observation shows that aluminium particles are firstly flattened into flakes, and then fractured/ rewelded into equiaxed particles as the ball milling progresses. The crystalline size is decreased and the lattice strain is increased during the ball milling, which are also intensified by the added GNSs. The hardness of the composite is increased by 115.1% with the incorporation of 1.0 vol. % GNSs. Conclusions: The local stress induced by the hard GNSs accelerates the milling process. The X-Ray diffraction patterns show that the intensity ratio of (111) to (200) can reflect the preferred orientation of the particle mixture, and the evolution of I(111)/I(200) agrees well with the observed results using SEM. The increased hardness is mainly attributed to the refined microstructure and Orowan strengthening.

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Graphene‐Reinforced Advanced Composite Materials

Ahmed

et al. 2019

Handbook of Graphene

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Fabrication of a new Al-Mg/graphene nanocomposite by multi-pass friction-stir processing: Dispersion, microstructure, stability, and strengthening

Cited by 140 publications

References 54 publications

Research Status and Prospect of Friction Stir Processing Technology

Research Status and Prospect of Friction Stir Processing Technology

Microstructure and mechanical properties of aluminium-graphene composite powders produced by mechanical milling

Graphene‐Reinforced Advanced Composite Materials

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