Recent progress in graphene-reinforced aluminum matrix composites

Su, Jinlong; Teng, Jie

doi:10.1007/s11706-021-0541-0

Cited by 50 publications

(21 citation statements)

References 88 publications

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“…Therefore, a 300 × 300 × 50 grid was used, q and λ were chosen as 100 and 1 µm, respectively. Modeled thermal treatment was 600 • C kept for 6 h, which was within the commonly used ranges of powder metallurgy and provides sufficient time for grain growth [3,4]. The MCS obtained by Equation (7) was 2826 for all cases due to the same thermal history.…”

Section: Resultsmentioning

confidence: 99%

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Effect of Content and Size of Reinforcements on the Grain Evolution of Graphene-Reinforced Aluminum Matrix Composites

Cai

Long

2021

Nanomaterials

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Graphene-reinforced aluminum matrix composites (GRAMCs) attract great interest in industries due to their high performance potential. High-temperature processes such as sintering and aging are usually applied during the preparation of GRAMCs, leading to grain coarsening that significantly influences its properties. In this work, a modified 3D Monte Carlo Potts model was proposed to investigate the effect of content and size of graphene on the grain evolution during the heat treatment of GRAMCs. Grain growth with graphene contents from 0.5 wt.% to 4.5 wt.% and sizes from 5 μm to 15 μm were simulated. The grain growth process, final grain size and morphology of the microstructure were predicted. The results indicated that both the content and size of the reinforcements had an impact on the grain evolution. The pinning effect of grain size can be enhanced by increasing the content and decreasing the size of graphene. Agglomeration and self-contacting phenomena of the graphene arose obviously when the contents and sizes were relatively high. The average grain size decreased by 48.77% when the content increased from 0.5 wt.% to 4.5 wt.%. The proposed method and predicted regulations can provide a reference for the design and fabrication of GRAMCs.

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Section: Resultsmentioning

confidence: 99%

“…Common fabrication methods of GRAMCs include powder metallurgy, casting, severe plastic deformation, additive manufacturing and so on [4]. Latief et al [5] prepared GNPs/Al composites with a mass ratio of up to 5 wt.% by powder metallurgy and hot extrusion methods.…”

Section: Introductionmentioning

confidence: 99%

Effect of Content and Size of Reinforcements on the Grain Evolution of Graphene-Reinforced Aluminum Matrix Composites

Cai

Long

2021

Nanomaterials

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“…% GNP into the alloy. Stir casting method is used for uniform distribution of the graphene powder since the liquid state processing is more economical and scalable for mass production than solid state processing [12]. Microstructure of the AA6061 alloy and composite (Fig.…”

Section: Materials Preparationmentioning

confidence: 99%

An initial study on the impression creep behaviour of stir-cast GNP reinforced AA6061 composite (AMMC)

Khokhar

Khajuria

Bedi

2022

IOP Conf. Ser.: Mater. Sci. Eng.

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Impression creep testing technique is used to screen out creep behaviour of materials as it is relatively faster method, requires small volume of the specimen, and is relatively material non-invasive technique when compared to conventional uniaxial tensile creep test method. This technique also possesses the benefit of maintaining constant stress throughout the experiment because a flat cylindrical indenter is used to apply load on the specimen. Owing to commercial unavailability of the materials under development such as metal matrix composites (MMC), the impression creep testing approach for such materials becomes a best method. In present work, creep behaviour of stir-cast graphene nanoplatelets (GNP) reinforced AA6061 composite (AMMC) is studied by using impression creep tests. The AMMC was prepared by adding GNPs in AA6061 through stir casting process by melting the alloy up to 1073 K. The impression creep experimentation included stress levels of 140 MPa, 170 MPa, and 200 MPa at a temperature of 573 K, 603 K and 633 K. The tests were conducted at constant stress by varying the temperature and vice-versa in vacuum. Two distinct regions i.e., primary and secondary/steady-state were observed and minimum creep strain rate was obtained in steady-state region. Tertiary region was absent, since the load/stress applied was compressive. During the experiment, depth of indentation of 0.03 mm to 0.14 mm was produced in the specimen. The microstructure of the composite has been analyzed using optical microscope and scanning electron microscope (SEM) to correlate with impression creep behaviour of the studied materials.

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“…Therefore, MMCs exhibit many favorable properties such as high specific strength, excellent stiffness and good wear resistance [10][11][12]. These composites can be prepared by using ductile material (aluminum, copper, titanium, or nickel as the matrix material) [13][14][15][16][17] and ceramic reinforcements (e.g., alumina, zirconia, silicon carbide, or graphene) [18][19][20][21][22][23]. It is important to highlight that the final characteristics of nanocomposites are strongly correlated to the following factors:…”

Section: Metal-matrix Nanocomposites (Mmncs)mentioning

confidence: 99%

Review on Using Powder Metallurgy Method for Production of Metal-Based Nanocomposites

Hakam

Taha

2021

Egypt. J. Chem.

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Due to the constant need for metal matrix nanocomposites (MMNCs), which are used in industrial applications such as automotive, aerospace, and many others, and therefore many researchers, are interested in making them nanocomposites with better performance, studies are continuing to improve their properties. In contrast to other versatile conventional production methods, powder metallurgy (PM) method is highly effective in eliminating porosity, wetting and casting defects. In this review, an in-depth discussion of the different MMNCs fabricated by the PM method with an explanation of the different stages of preparation of these nanocomposites such as powder production, pressing and sintering was discussed. Also, the different factors affecting milling and sintering processes were reviewed. Finally, the advantages, disadvantages, and more common applications of PM in the preparation of these nanocomposites mentioned above were discussed in some detail.

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Recent progress in graphene-reinforced aluminum matrix composites

Cited by 50 publications

References 88 publications

Effect of Content and Size of Reinforcements on the Grain Evolution of Graphene-Reinforced Aluminum Matrix Composites

Effect of Content and Size of Reinforcements on the Grain Evolution of Graphene-Reinforced Aluminum Matrix Composites

An initial study on the impression creep behaviour of stir-cast GNP reinforced AA6061 composite (AMMC)

Review on Using Powder Metallurgy Method for Production of Metal-Based Nanocomposites

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