Wear characteristics of Al matrix reinforced with Al2O3-carbon hybrid metal matrix composites

Ahamad, Naseem; Mohammad, Aas; Gupta, Pallav

doi:10.1016/j.matpr.2020.05.739

Cited by 23 publications

(11 citation statements)

References 17 publications

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“…In this study, the AA/W composite showed the least wear rate (0.0011 mm 3 /m) which is 8% and 40% lesser than AA/Z and AA8090 materials, respectively. This is good in accordance with the earlier results reported by Ahamad et al (2021). He performed a similar study and reported that Al – 2.5 wt% Al 2 O 3 – 2.5 wt% C hybrid composites showed the least wear rate of 0.85 × 10 −3 mm 3 /m for 10 N load and 1.5 m/s sliding velocity.…”

Section: Resultssupporting

confidence: 92%

Tribological characteristics of AA8090-WC-ZrC metal matrix composites prepared by stir casting process for Aerospace applications

A¹,

S²,

Gunasekaran³

et al. 2021

ILT

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Purpose Aerospace field is demanding a material with superior strength and high resistance against wear, tear and corrosion. The current study aimed to develop a new material with high performance to be applicable in aerospace field Design/methodology/approach A metal matrix composite AA8090-WC-ZrC was fabricated using stir casting method and its tribological behavior was investigated. Totally, five composites viz. AA/Z, AA/W, AA/WZ (1:3), AA/WZ (1:1) & AA/WZ (3:1) were prepared. Micro hardness, tensile and wear study were performed on the fabricated composites and the results were compared with AA8090 alloy Findings Vickers hardness test resulted that the AA/W composite showed the higher hardness value of 160 HB compared to other materials due to the reinforcing effect of WC particles with high hardness. Tensile test reported that the AA/W composite displayed the maximum tensile strength of 502 MPa owing to the creation of more dislocation density. Further, wear study showed that the AA/W composite exhibited the least wear rate of 0.0011 mm3/m because of the more resisting force offered by the WC particles. Furthermore, the AA/W composite showed the slightest mass loss of 0.0028 g and lower COF value of 0.31 due to the hinder effect of WC particle to the movement of atoms in AA8090 alloy Originality/value This work is original in the field of aerospace engineering and materials science which deals with the fabrication of AA8090 alloy with the reinforcement particles such as tungsten carbide and zirconium carbide. The impact of the combination of hybrid particles and their volume fractions on the tribological properties has been investigated in this work. This work would provide new scientific information to society.

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Section: Resultssupporting

confidence: 92%

Tribological characteristics of AA8090-WC-ZrC metal matrix composites prepared by stir casting process for Aerospace applications

A¹,

S²,

Gunasekaran³

et al. 2021

ILT

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“…These researches reported an increase in Hardness as the reinforced particulate wt. % increased [34,36,37,[40][41][42]44]. In the experiment conducted by Devaganesh et al (2020) an increase in Hardness till 5% Gr and then a decline in hardness value were observed [43].…”

Section: Hardness Testmentioning

confidence: 99%

Characterization of Aluminium Hybrid Metal Matrix Composites

Srivastava¹,

Bhatnagar²,

Verma³

et al. 2021

Preprint

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Hybrid Metal Matrix composites have emerged as an epicentre of material research due to their vast applications and a wide array of reinforcement combinations. In this experiment, a hybrid Aluminum metal matrix composite has been fabricated by the double (two steps) stir casting method. The present study evaluates the mechanical properties of AA6061 in varying concentrations of silicon carbide with 5, 10, 15 and 20 weight percent (wt.%), in addition to Rice Husk Ash, Tungsten Carbide and Alumina Powder which are in a fixed quantity. Mechanical properties have been evaluated by conducting an Impact test, Hardness test, Flexural test and Tensile Strength. In addition, micrograph Images have been incorporated for analysing the microstructural characteristics of the Hybrid AMMC. It was observed that MMC properties such as Tensile Strength, Yield Strength, Hardness, Impact Strength were highest at 20 wt.% SiC. Hence, it was inferred that 20wt% SiC was an appropriate concentration for applications in automobile and aerospace pertaining to its augmented mechanical properties. In conclusion, prospects of future research are also explored.

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“…24,25 Jamwal et al again examined the various properties of Cu-Al 2 O 3 /SiC/TiC/ZrO 2 composites and also discussed its various applications. 26 29 In the present study, Al-Al 2 O 3 -SiC hybrid composites were prepared by the stir casting technique with the addition of ceramic reinforcements in equal proportion. The aim of this research is to examine the phase, microstructure, and mechanical behavior of Al-Al 2 O 3 -SiC hybrid composites.…”

Section: Introductionmentioning

confidence: 99%

Correlation of structural and mechanical properties for Al-Al₂O₃-SiC hybrid metal matrix composites

Ahamad

Mohammad

Rinawa

et al. 2021

Journal of Composite Materials

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The aim of the present paper is to examine the outcome of Al2O3-SiC reinforcements on structural and mechanical behavior of Al matrix based hybrid composites. Al-Al2O3-SiC hybrid composite has been developed through stir casting with addition of ceramics i.e. Al2O3-SiC (2.5 wt.%, 5.0 wt.%, 7.5 wt.% and 10.0 wt.%) in relative and symmetrical proportion. The structural characteristics, i.e. phase, microstructure, EDS; physical property i.e. density and the mechanical properties, i.e. hardness, impact strength and tensile strength of fabricated specimens have been investigated. XRD represents the transitional phase formation among Al base material and Al2O3-SiC ceramic phases with inter-atomic bonding between them. SEM reveals that the Al2O3-SiC fragments has distributed symmetrically in Al matrix. EDS spectrum of various samples are in confirmation with the XRD results. Density of hybrid composite reduces with increase in weight percentage of ceramic reinforcements i.e. Al2O3-SiC because ceramic particle gains low density after preheating. Hardness of hybrid composites increases upto 5 wt.% variation of ceramic reinforcements i.e. Al2O3-SiC after that it decreases. Impact strength of hybrid composite has been increased with an increase in weight percentage of ceramic. Al-2.5 wt.% Al2O3-2.5 wt.% SiC shows maximum ultimate tensile strength. It is expected that the prepared hybrid composites will be useful for fastener studs.

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Wear characteristics of Al matrix reinforced with Al2O3-carbon hybrid metal matrix composites

Cited by 23 publications

References 17 publications

Tribological characteristics of AA8090-WC-ZrC metal matrix composites prepared by stir casting process for Aerospace applications

Tribological characteristics of AA8090-WC-ZrC metal matrix composites prepared by stir casting process for Aerospace applications

Characterization of Aluminium Hybrid Metal Matrix Composites

Correlation of structural and mechanical properties for Al-Al₂O₃-SiC hybrid metal matrix composites

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Wear characteristics of Al matrix reinforced with Al2O3-carbon hybrid metal matrix composites

Cited by 23 publications

References 17 publications

Tribological characteristics of AA8090-WC-ZrC metal matrix composites prepared by stir casting process for Aerospace applications

Tribological characteristics of AA8090-WC-ZrC metal matrix composites prepared by stir casting process for Aerospace applications

Characterization of Aluminium Hybrid Metal Matrix Composites

Correlation of structural and mechanical properties for Al-Al2O3-SiC hybrid metal matrix composites

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Product

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Correlation of structural and mechanical properties for Al-Al₂O₃-SiC hybrid metal matrix composites