Effect of Graphene Nanoplatelets on Microstructure and Mechanical Properties of AlSi10Mg Nanocomposites Produced by Hot Extrusion

Saboori, Abdollah; Casati, Riccardo; Zanatta, André Marcon; Pavese, Matteo; Badini, Claudio Francesco; Vedani, Maurizio

doi:10.1007/s11106-018-9939-3

Cited by 17 publications

(8 citation statements)

References 41 publications

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“…The deterioration of tensile properties leads to a decrease in the values of UTS and FS in comparison with that of AlSi10Mg. These findings are also in line with a previous work on the mechanical properties of AlSi10Mg-GNPs [29,30]. The mechanical features improvement of AlSi10Mg-0.5 wt.% GNPs can be related to the hindering of dislocation motion across the matrix/reinforcement interface by GNPs during the tensile loading (Orowan looping) and grain refinement that was achieved through the addition of GNPs [21].…”

Section: Mechanical Properties Evaluationsupporting

confidence: 92%

Development of Novel AlSi10Mg Based Nanocomposites: Microstructure, Thermal and Mechanical Properties

Moheimani

Dadkhah

Saboori

2019

Metals

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Al matrix nanocomposites are interestingly employed in the automotive, military, aerospace and electronics packaging industries. In this study, Graphene Nanoplatelets (GNPs) reinforced AlSi10Mg nanocomposites were produced via powder metallurgy. The effect of GNPs content on density, microstructure and mechanical characteristics of the AlSi10Mg/GNPs nanocomposites was investigated systematically. To this aim, AlSi10Mg/GNPs nanocomposites reinforced with 0.5, 1.0 and 2.0 wt.% of GNPs were produced by wet mixing method following by hot compaction at 600 °C. To evaluate the effect of GNPs on mechanical properties of the as-fabricated nanocomposite, Vickers hardness and tensile properties of composites analyzed at room temperature. According to the results, it was found that the fabrication of AlSi10Mg/GNPs nanocomposites is faced with several challenges such as agglomeration and non-uniform dispersion of GNPs that should be addressed to achieve the desirable thermal and mechanical properties. For instance, surprisingly, it is revealed that the mechanical and thermal properties of nanocomposites were deteriorated in the presence of a high quantity of GNPs (>1.0 wt.%), which can be attributed to the GNPs agglomeration and accordingly introduction of internal porosity in the nanocomposite. The relatively low fraction of GNPs can uniformly be dispersed in the matrix and improve the performance of the nanocomposite.

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Section: Mechanical Properties Evaluationsupporting

confidence: 92%

Development of Novel AlSi10Mg Based Nanocomposites: Microstructure, Thermal and Mechanical Properties

Moheimani

Dadkhah

Saboori

2019

Metals

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“…Apart from the preferred orientation of GNPs and GNPs agglomerate formation, the higher thermal conductivity of samples produced by hot rolling was correlated to their higher density and lower porosity content. Recently, Saboori et al have studied the effect of graphene addition on microstructure and mechanical properties of AlSi10Mg/GNPs nanocomposites produced by hot extrusion [132]. In this research, AlSi10Mg composites reinforced with graphene nanoplatelets (GNPs) were produced by a wet mixing method followed by two-step hot consolidation (hot compaction then hot extrusion) at 400 °C.…”

Section: Al Matrix Composites (Amcs)mentioning

confidence: 99%

“…The hardness and tensile results demonstrated that the mechanical properties improve slightly through the addition of 0.5 wt % of GNPs, while 1.0 wt % GNPs addition did not lead to improved performance owing to overwhelming effects of porosity ( Figure 12). Recently, Saboori et al have studied the effect of graphene addition on microstructure and mechanical properties of AlSi10Mg/GNPs nanocomposites produced by hot extrusion [132]. In this research, AlSi10Mg composites reinforced with graphene nanoplatelets (GNPs) were produced by a wet mixing method followed by two-step hot consolidation (hot compaction then hot extrusion) at 400 • C. The weight percentages of GNPs were 0.5 and 1 wt % concerning the AlSi10Mg alloy.…”

Section: Al Matrix Composites (Amcs)mentioning

confidence: 99%

“…Tensile stress-strain curves of AlSi10Mg/GNPs curves produced by hot rolling [132], Reproduced from [132], with permission from Springer Nature, 2018.…”

Section: Figure 12mentioning

confidence: 99%

“…For instance, Caron et al have reported that the electrical conductivity of copper can be lower down to 86% IACS (International Annealed Copper Standard) only as a consequence of 0.023% Fe addition during the fabrication process [137]. Tensile stress-strain curves of AlSi10Mg/GNPs curves produced by hot rolling [132], Reproduced from [132], with permission from Springer Nature, 2018.…”

Section: Copper Matrix Composites (Cumcs)mentioning

confidence: 99%

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An Overview of Metal Matrix Nanocomposites Reinforced with Graphene Nanoplatelets; Mechanical, Electrical and Thermophysical Properties

Saboori

Dadkhah

Fino

et al. 2018

Metals

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Two-dimensional graphene nanoplatelets with unique electrical, mechanical and thermophysical characteristics are considered as an interesting reinforcement to develop new lightweight, high-strength, and high-performance metal matrix nanocomposites. On the other hand, by the rapid progress of technology in recent years, development of advanced materials like new metal matrix nanocomposites for structural engineering and functional device applications is a priority for various industries. This article provides an overview of research efforts with an emphasis on the fabrication and characterization of different metal matrix nanocomposites reinforced by graphene nanoplatelets (GNPs). Particular attention is devoted to find the role of GNPs on the final electrical and thermal conductivity, the coefficient of thermal expansion, and mechanical responses of aluminum, magnesium and copper matrix nanocomposites. In sum, this review pays specific attention to the structure-property relationship of these novel nanocomposites.

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Experimental and Finite Element Study of Recycled Aluminium (AA7075) Matrix Composites Reinforced of TiC/MoS2/γ-Al2O3Fibre/Nb2Al

Mihlyuzova

Enginsoy

Slavov

et al. 2022

Mechanics of Composite, Hybrid and Multifunctional Materials, Fracture, Fatigue, Failure and Damage Evolution, Volume 3

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Effect of Graphene Nanoplatelets on Microstructure and Mechanical Properties of AlSi10Mg Nanocomposites Produced by Hot Extrusion

Cited by 17 publications

References 41 publications

Development of Novel AlSi10Mg Based Nanocomposites: Microstructure, Thermal and Mechanical Properties

Development of Novel AlSi10Mg Based Nanocomposites: Microstructure, Thermal and Mechanical Properties

An Overview of Metal Matrix Nanocomposites Reinforced with Graphene Nanoplatelets; Mechanical, Electrical and Thermophysical Properties

Experimental and Finite Element Study of Recycled Aluminium (AA7075) Matrix Composites Reinforced of TiC/MoS2/γ-Al2O3Fibre/Nb2Al

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