Characterization of surface morphology, wear performance and modelling of graphite reinforced aluminium hybrid composites

Arif, Sajjad; Jamil, Basharat; Shaikh, Mohd Bilal Naim; Aziz, Tariq; Ansari, Akhter Husain; Khan, Mahfoozurrahman

doi:10.1016/j.jestch.2019.07.001

Cited by 41 publications

(32 citation statements)

References 50 publications

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“…The highest peak is observed in Al 7075, accompanied by TiC and graphite. The findings are consistent with previously published research [ 48 , 49 , 50 ].…”

Section: Resultssupporting

confidence: 94%

Modeling, Optimization and Performance Evaluation of TiC/Graphite Reinforced Al 7075 Hybrid Composites Using Response Surface Methodology

Alam

Yusuf

et al. 2021

Materials

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The tenacious thirst for fuel-saving and desirable physical and mechanical properties of the materials have compelled researchers to focus on a new generation of aluminum hybrid composites for automotive and aircraft applications. This work investigates the microhardness behavior and microstructural characterization of aluminum alloy (Al 7075)-titanium carbide (TiC)-graphite (Gr) hybrid composites. The hybrid composites were prepared via the powder metallurgy technique with the amounts of TiC (0, 3, 5, and 7 wt.%), reinforced to Al 7075 + 1 wt.% Gr. The microstructural characteristics were investigated by optical microscopy, scanning electron microscopy (SEM), X-ray diffraction (XRD) and energy dispersive X-ray spectroscopy (EDS) elemental mapping. A Box Behnken design (BBD) response surface methodology (RSM) approach was utilized for modeling and optimization of density and microhardness independent parameters and to develop an empirical model of density and microhardness in terms of process variables. Effects of independent parameters on the responses have been evaluated by analysis of variance (ANOVA). The density and microhardness of the Al 7075-TiC-Gr hybrid composites are found to be increased by increasing the weight percentage of TiC particles. The optimal conditions for obtaining the highest density and microhardness are estimated to be 6.79 wt.% TiC at temperature 626.13 °C and compaction pressure of 300 Mpa.

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“…The highest peak is observed in Al 7075, accompanied by TiC and graphite. The findings are consistent with previously published research [ 48 , 49 , 50 ].…”

Section: Resultssupporting

confidence: 94%

Modeling, Optimization and Performance Evaluation of TiC/Graphite Reinforced Al 7075 Hybrid Composites Using Response Surface Methodology

Alam

Yusuf

et al. 2021

Materials

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“…The crystal phases of Al (111), Al (200), Al (220) and Al (311) were observed at diffraction angle 38.45°, 44.69°, 65.04°and 78.15°respectively. The results have been found consistent with the literature [23,24]. The above-mentioned xray diffraction peaks of Al can be utilized to assure the fabrication of the Al-TiC composites with the existence of an appropriate crystal phase of Al and TiC.…”

Section: Resultssupporting

confidence: 90%

Investigating the effect of mixing time on the crystallite size and lattice strain of the AA7075/TiC composites

Alam

Azeem

et al. 2021

Materialwissenschaft Werkst

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With numerous reinforcements, aluminum and its alloys are finding growing applications in every sector of industry. Titanium carbide (TiC) is regarded as an outstanding reinforcing material as compared to widely used carbide particles because of its excellent physical and mechanical characteristics, as well as its especially good interfacial bonding (wetting) capacity with aluminum. In the present research work, the effect of the mixing time of the matrix and reinforcement powders has been investigated on the crystallite size and lattice strain of the AA7075–5 wt.% TiC composites. The mechanical properties of the developed composites were also investigated in terms of microhardness values. X‐ray diffraction and scanning electron microscopy (SEM), transmission electron microscopy (TEM), particles size distribution analysis and x‐ray energy dispersive spectroscopy (EDS) of the synthesized powder samples were done to see the effect of mixing time on their microstructures. The increase in mixing time led to a homogeneous distribution of 5 wt.% of TiC particles, a decrease in particles clustering. The considerable grain refining was confirmed, which reflected a reduction in particle size originating from a prolonged mixing time. The significant improvement in the crystallite size and microhardness of the produced composites were achieved with increasing mixing time.

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“…Sajjad Arif et al [18] conducted a morphological and wear study on aluminium matrix reinforced micro graphite and nano zirconia particles with varying volume fractions. The authors concluded that the inclusion of graphite particles enhances the wear resistance.…”

Section: Introductionmentioning

confidence: 99%

A comprehensive analysis to assess the impact of nano MoS₂ on the wear characteristic of Al-TiB₂-Gr composite

Chenrayan

Vaishnav

Shahapurkar

et al. 2022

Mater. Res. Express

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The present study evaluates the influence of nano MoS2 particles on the wear properties of newly developed TiB2 and Graphite reinforced Aluminium composite. Micro particles of MoS2 are downsized into nano levels using a planetary ball mill. Three different compositions of specimens are fabricated through stir casting, with a constant 10% of weight of TiB2, graphite, and nano MoS2 is kept at varying amounts of 10, 15, and 20%. The dry sliding wear tests are executed by following Taguchi's design of experiment. The wear rate and coefficient of friction are considered as responses, whereas the normal load, sliding distance and the composition of MoS2 are considered as the chief parameters with three levels. The hybridized Taguchi-Grey Relational -Principal Component Analysis mathematical model is implemented to study the effect of wear parameters and inclusion of MoS2 on the wear behavior. Mathematical and experimental results explore the increasing nano MoS2 content reduces the wear rate and coefficient of friction of composites. Analysis of variance results also acknowledge that nano MoS2 content in the composite is a remarkable parameter to impact the tribological property. The hybrid statistical model results explore that the optimum parameter to yield better tribological property are 30 N normal load, 2 km sliding distance and 20 % of MoS2. Worn surfaces are analyzed using scanning electron microscopy to picturize the wear mechanism concerning the varying content of reinforcement.

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Characterization of surface morphology, wear performance and modelling of graphite reinforced aluminium hybrid composites

Cited by 41 publications

References 50 publications

Modeling, Optimization and Performance Evaluation of TiC/Graphite Reinforced Al 7075 Hybrid Composites Using Response Surface Methodology

Modeling, Optimization and Performance Evaluation of TiC/Graphite Reinforced Al 7075 Hybrid Composites Using Response Surface Methodology

Investigating the effect of mixing time on the crystallite size and lattice strain of the AA7075/TiC composites

A comprehensive analysis to assess the impact of nano MoS₂ on the wear characteristic of Al-TiB₂-Gr composite

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Characterization of surface morphology, wear performance and modelling of graphite reinforced aluminium hybrid composites

Cited by 41 publications

References 50 publications

Modeling, Optimization and Performance Evaluation of TiC/Graphite Reinforced Al 7075 Hybrid Composites Using Response Surface Methodology

Modeling, Optimization and Performance Evaluation of TiC/Graphite Reinforced Al 7075 Hybrid Composites Using Response Surface Methodology

Investigating the effect of mixing time on the crystallite size and lattice strain of the AA7075/TiC composites

A comprehensive analysis to assess the impact of nano MoS2 on the wear characteristic of Al-TiB2-Gr composite

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A comprehensive analysis to assess the impact of nano MoS₂ on the wear characteristic of Al-TiB₂-Gr composite