Mechanical Characterization Studies of Aluminium Alloy 7075 Based Nanocomposites

Prakash, J.; Gopalakannan, S.; Chakravarthy, V. Kalyana

doi:10.1007/s12633-021-00979-8

Cited by 31 publications

(6 citation statements)

References 43 publications

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“…al. (7)aimed to fabricate a lightweight Nano composite, evaluate its mechanical, corrosion, and wear behaviour according to ASTM standards, and determine the optimal nSiCp reinforcement percentage for improved strength in AA7075. Aluminum Alloy 7075, predominantly alloyed with zinc was used as matrix material Silicon Carbide (SiC) nanoparticles were used as reinforcement.…”

Section: Aluminum Metal Matrix Composites Reinforced With Silicon Car...mentioning

confidence: 99%

Nano reinforced aluminium based Metal Matrix Hybrid Composites - an overview

Annapoorna,

Ananda,

Deshpande

et al. 2024

J. Phys.: Conf. Ser.

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Aluminium and its alloys find their application in aerospace, automobile, and marine sectors as it costs less and properties like low density, good ductility, high resistance to corrosion etc. However, aluminium has many drawbacks like low resistance to abrasion and wear, poor strength etc. These drawbacks can be overcome by adding certain materials as reinforcement into pure aluminium and its alloy. Hybrid reinforcement imbibes superior properties to Al matrix composites, compared along with single reinforced Al composites. The properties of Al matrix composite is enhanced by reinforcing with nano particles compared to micro reinforcement. In recent years, research advancement is focusing on fabrication of composites prepared by nano reinforcement materials. Various nano materials are used to fabricate aluminium/alloy matrix composites for improved abrasion, enhanced wear properties, high specific strength, better corrosion resistance etc. This review paper gives an overview of various processing techniques, different nano reinforcements used for fabrication of aluminium and its alloy matrix. Further, Hybrid Nano composite properties along with their types, concentration of reinforcement and microstructure of the composite fabricated are discussed. Finally, Future trends and potential applications of aluminium based nano composites are presented and have been concluded with recent advancements in the specified area.

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Section: Aluminum Metal Matrix Composites Reinforced With Silicon Car...mentioning

confidence: 99%

Nano reinforced aluminium based Metal Matrix Hybrid Composites - an overview

Annapoorna,

Ananda,

Deshpande

et al. 2024

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

show abstract

“…To ascertain the impact strength of the generated composites, the Charpy samples were made in compliance with the ASTME23 standard. Impact testing may be used to measure the amount of energy absorbed by a material when subjected to sudden loading, which can then be used to evaluate the material's ability to resist deformation [44]. The impact strength of different composites is shown in figure 4.…”

Section: Impact Strengthmentioning

confidence: 99%

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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“…The solid-state processes mainly include powder metallurgy, and accumulative roll bonding [9,[12][13][14][15]. It is found that the composites fabricated via conventional techniques often contain many defects such as high porosities, weak interface bonds due to poor wetting behavior between liquid matrix and reinforcement particles, and large differences in density of the matrix and reinforcement particles, which ultimately result in non-uniform dispersion of reinforcement particles in the matrix materials [16][17][18]. In powder metallurgy-based techniques, the properties of materials can be effectively tailored by varying the process parameters.…”

Section: Introductionmentioning

confidence: 99%

Effect of Variations in Microwave Processing Temperatures on Microstructural and Mechanical Properties of AA7075/SiC/Graphite Hybrid Composite Fabricated by Powder Metallurgy Techniques

Manohar¹,

Pandey

Maity

2022

Silicon

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Due to the demand in present industrial, aerospace, defense sectors for lightweight high-performance aluminum (Al) particle-reinforced metal matrix composites, the advancement of techniques to fabricate these composites with superior mechanical properties have gained technological interest in the modern world. In this direction, SiC and graphite reinforced AA7075 matrix composite material has been fabricated in this study, through hybrid microwave sintering techniques. The microwave sintering temperatures for the optimized volume fraction composition of AA7075/SiC/graphite hybrid composite has been varied from 400 to 550 ℃ with a step value of 50 ℃. The obtained results showed a superior improvement in the mechanical properties for microwave sintered composites as compared to the conventionally sintered composites. Mechanical properties are found to show increasing trend with increasing microwave sintering temperatures up to 500 ℃, after that, a downfall is observed in their mechanical properties, which can be attributed to the increased average grain size of the composite at 550 ℃. Selection of SiC as primary reinforcement material helped in achieving high mechanical strengths, and through microwave sintering, an increment of 37.2% in tensile, 26.6% in compression, and 16.5% in hardness is achieved. From this investigation, it is also observed that the selection of materials that shows high response to microwaves helps in achieving the enhanced mechanical properties for the hybrid composites processed by microwave sintering techniques.

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Mechanical Characterization Studies of Aluminium Alloy 7075 Based Nanocomposites

Cited by 31 publications

References 43 publications

Nano reinforced aluminium based Metal Matrix Hybrid Composites - an overview

Nano reinforced aluminium based Metal Matrix Hybrid Composites - an overview

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

Effect of Variations in Microwave Processing Temperatures on Microstructural and Mechanical Properties of AA7075/SiC/Graphite Hybrid Composite Fabricated by Powder Metallurgy Techniques

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