Aluminum Matrix Composites Reinforced with Graphene: A Review on Production, Microstructure, and Properties

Pourmand, Nima Seyed; Asgharzadeh, H.

doi:10.1080/10408436.2019.1632792

Cited by 84 publications

(26 citation statements)

References 167 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The significance of these alloys (particularly AA2024) in other industrial sectors, including the automotive, construction, marine and defence industries, is also stated, due to their corrosion resistance, conductivity, malleability, recyclability, density and cost [2]. Further improvements in the microstructure and mechanical properties of these alloys using different manufacturing technologies (for instance additive manufacturing) have the potential to introduce this alloy into new research and manufacturing areas [3,4].…”

Section: Introductionmentioning

confidence: 99%

Effect of process parameters on the microstructure and mechanical properties of AA2024 fabricated using selective laser melting

Pekok

Setchi

Ryan

et al. 2020

Int J Adv Manuf Technol

View full text Add to dashboard Cite

Selective laser melting (SLM) offers significant benefits, including geometric freedom and rapid production, when compared with traditional manufacturing techniques. However, the materials available for SLM production remain limited, restricting the industrial adoption of the technology. The mechanical properties and microstructure of many aluminium alloys have not been fully explored, as their manufacturability using SLM is extremely challenging. This study investigates the effect of laser power, hatch spacing and scanning speed on the mechanical and microstructural properties of as-fabricated aluminium 2024 alloy (AA2024) manufactured using SLM. The results reveal that almost crack-free structures with high relative density (99.9%) and Archimedes density (99.7%) have been achieved. It is shown that when using low energy density (ED) levels, large cracks and porosities are a major problem, owing to incomplete fusion; however, small gas pores are prevalent at high-energy densities due to the dissolved gas particles in the melt pool. An inversely proportional relationship between ED and microhardness has also been observed. Lower ED decreases the melt pool size and temperature gradients but increases the cooling rate, creating a fine-grained microstructure, which restricts dislocation movement, therefore increasing the microhardness. The highest microhardness (116 HV0.2), which was obtained from one of the lowest EDs used (100 J/mm3), is 45% higher than as-cast AA2024-0, but 17% lower than wrought AA2024-T6 alloy.

show abstract

Section: Introductionmentioning

confidence: 99%

Effect of process parameters on the microstructure and mechanical properties of AA2024 fabricated using selective laser melting

Pekok

Setchi

Ryan

et al. 2020

Int J Adv Manuf Technol

View full text Add to dashboard Cite

show abstract

“…In the family of MMCs, the aluminum metal matrix composites (AMMCs) have attracted much attention due to their distinctive properties such as low density, high strength, good wear resistance, and excellent thermal stability [ 3 , 4 , 5 ]. These features lead AMMCs to become a prospective contender for comprehensive utilization in the automobile and aviation industries [ 6 ]. At the same time, research have demonstrated that the incorporation of nano-sized reinforcements in AMMCs has exhibited superior behavior in enhancing their structural, thermal, and mechanical properties when compared with micron-sized reinforcements [ 7 , 8 ].…”

Section: Introductionmentioning

confidence: 99%

“…Recent studies have indicated that the properties are remarkably influenced by the nature of reinforcement, its weight fraction, and distribution within the metal matrix [ 6 , 14 , 15 , 16 ]. To optimize the properties of the AMMCs, the reinforcement material utilized is required to be uniformly distributed within the matrix.…”

Section: Introductionmentioning

confidence: 99%

“…In the present study, silicon nitride (Si 3 N 4 ) was selected as the first reinforcement based on its significant properties such as high hardness, compressive strength, wear-resistance, and high thermal stability [ 20 , 21 ]. Additionally, graphene nanoplatelets (GNPs) were considered as the second reinforcement for the manufacturing of hybrid aluminum metal matrix composites (HAMMCs) due to their extraordinary mechanical and tribological, electrical, and thermal properties [ 6 , 22 , 23 ]. The amount of Si 3 N 4 was kept constant at 5 wt.%, whereas the amount of GNPs was varied from 0.5 to 1.5 wt.% to study their effect on the structural, and mechanical properties of the synthesized HAMMCs.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effect of Silicon Nitride and Graphene Nanoplatelets on the Properties of Aluminum Metal Matrix Composites

et al. 2021

View full text Add to dashboard Cite

This research work aims at investigating the influence of a fixed content of silicon nitride (Si3N4) and varied contents of graphene nanoplatelets (GNPs) on the physical (density, structural, morphological) and mechanical properties (microhardness, nanoindentation) of Al-Si3N4-GNPs composites. The composites were fabricated by a microwave-assisted powder metallurgy route. The Si3N4 concentration was fixed at (5 wt.%) in Al-Si3N4-GNPs composites while the GNPs concentration was varied between (0 wt.%) to (1.5 wt.%) with an increment of (0.5 wt.%). The structural analysis indicates the formation of phase pure materials with high crystallinity. The microstructural analysis confirmed the presence of the Si3N4 and GNPs showing enhanced agglomeration with the increasing amount of GNPs. Moreover, the surface roughness of the synthesized composites increases with an increasing amount of GNPs reaching its maximum value (RMS = 65.32 nm) at 1.5 wt.% of GNPs. The Al-Si3N4-GNPs composites exhibit improved microhardness and promising load-indentation behavior during nanoindentation when compared to pure aluminum (Al). Moreover, Al-Si3N4-GNPs composites demonstrate higher values of compressive yield strength (CYS) and ultimate compressive strength (UCS) when compared to pure Al despite showing a declining trend with an increasing amount of GNPs in the matrix. Finally, a shear mode of fracture is prevalent in Al-Si3N4-GNPs composites under compression loading.

show abstract

“…In addition, Al-based composites have high specific strength and specific stiffness, good high-temperature performance, better fatigue and wear resistance, good damping performance, and a low thermal expansion coefficient [2][3][4]. Therefore, Al-based composites have become one of the most essential materials in metal matrix composites [5]. It is widely used in electronic and optical instruments.…”

Section: Introductionmentioning

confidence: 99%

Effects of Defects and Doping on an Al Atom Adsorbed on Graphene: A First-Principles Investigation

et al. 2020

View full text Add to dashboard Cite

In order to enhance the interaction between an Al atom and graphene in graphene-reinforced aluminum-based composites, the method of first-principles calculation was used to investigate the adsorption behavior of Al atoms on graphene. Our calculations indicate that defective and doped graphene are energetically favored for Al atom adsorption compared with pristine graphene. The adsorption effects show that both defects and doping can improve the stability of the Al–graphene system. Furthermore, it was also found that defects and doping lead to a red-shift of the highest optical absorption peaks. The results of the investigation provide a theoretical basis for the future application of graphene-reinforced aluminum-based composites in optical and optoelectronic devices.

show abstract

Aluminum Matrix Composites Reinforced with Graphene: A Review on Production, Microstructure, and Properties

Cited by 84 publications

References 167 publications

Effect of process parameters on the microstructure and mechanical properties of AA2024 fabricated using selective laser melting

Effect of process parameters on the microstructure and mechanical properties of AA2024 fabricated using selective laser melting

Effect of Silicon Nitride and Graphene Nanoplatelets on the Properties of Aluminum Metal Matrix Composites

Effects of Defects and Doping on an Al Atom Adsorbed on Graphene: A First-Principles Investigation

Contact Info

Product

Resources

About