Study on tribological behaviour of aluminium hybrid composites strengthened with novel groundnut shell ash and boron carbide

Venkatesh, L.; Arulraj, M.; Kumar, K. Ravi

doi:10.1177/09544089221112162

Cited by 10 publications

(3 citation statements)

References 42 publications

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“…These compounds help to enhance adhesive properties and also increase load bearing capability of the matrix. [22][23][24][25] Due to heating thermal stress is generated which may also influence the strength. Also, the thermal variation between the matrix and CPA/TiB 2 is a reason for the increase in strength.…”

Section: Influence Of Cpa On Mechanical Propertiesmentioning

confidence: 99%

Experimental studies on the effects of reinforcing cowpat ash with aluminium composites

Varun

Gopi²,

Manikandan³

2022

Proceedings of the Institution of Mechanical Engineers, Part E:

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A brief study is attempted to identify the effects of cowpat ash (CPA) having single reinforcement and also a second reinforcement with titanium diboride (TiB2) in aluminium 7075 alloys through the liquid metallurgy technique. The microstructural and mechanical properties of the fabricated samples are evaluated and compared with the base material to identify the increase and decrease in properties of the composite materials. In the first stage, single reinforced composites (SRCs) with CPA were varied by 2, 4, 6 and 8 weight percentages. It was found that at 6% of CPA the properties have enhanced in the composite materials. In the second stage of the research, hybrid reinforced composites (HRC) were fabricated with 6% CPA which was kept constant and TiB2 were varied by 2, 4 and 6 weight percentages. Among the composition, it was found that at 6% CPA and 4% TiB2 the properties of aluminium 7075 have enhanced. Optical microstructure, SEM with EDAX and XRD for SRC and HRC exhibited uniform distribution of reinforcements and their existence in the matrix respectively. The density has reduced for both SRC and HRCs but porosity has increased with an increase in reinforcement percentage. Hardness has increased by 18.18% for SRC and 34.54% for HRC. Tensile strength has increased by 14.28% for SRC and 29.67% for HRC. The impact strength has gradually decreased by 31.25% for SRC and 43.75% for HRC. Flexural strength has increased by 7.54% for SRC and 15.09% for HRC. The fracture SEM images exhibited cracks, voids, and dimples for tensile and impact specimens for fabricated samples.

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Section: Influence Of Cpa On Mechanical Propertiesmentioning

confidence: 99%

Experimental studies on the effects of reinforcing cowpat ash with aluminium composites

Varun

Gopi²,

Manikandan³

2022

Proceedings of the Institution of Mechanical Engineers, Part E:

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“…27 The aluminum matrix hybrid composites (AMHCs) are reinforced with groundnut shell ash and boron carbide. 28 According to the base alloy, the mechanical properties of the hybrid composites displayed more than 50% improvement. Authors declared that one of the most important parameters in improving the mechanical properties of hybrid composites is the reinforcing percentage and also the groundnut shell ash is environmental friendly.…”

Section: Introductionmentioning

confidence: 99%

Development and characterization of Al2024/magnesium oxide/CNTs/ hybrid composites via stir casting method

Kurt

Ergül

Başyiğit

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part E:

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In this research, the aluminum (Al2024) matrix composites are reinforced with nano magnesium oxide (MgO) and multi-walled carbon nanotubes (MWCNTs). The aim of Al2024 alloy reinforced with MgO and MWCNTs is to reveal the effects of the reinforcement particle ratio on the microstructure and mechanical properties of the hybrid composites, to find the optimum hybrid ratio, and to form a stronger hybrid composite. The composites with the different hybrid ratios are produced via stir casting method. The theoretical and measured densities and porosity content of the composites are studied. The microstructure and fracture surface of the composites are examined by optical microscopy, scanning electron microscopy (SEM), and electron dispersive spectrum (EDS). The hardness, compression, and tensile properties of the composites are studied in this work. Results indicated that the hardness of the aluminum (Al) matrix composites (AMCs) is significantly improved after the reinforcement with MgO and carbon nanotube (CNT), and also heat treatment of T6. The stress–strain curve of the composites is tested by a material testing machine. The maximum tensile and compression strengths are obtained at Al2024-0.2 wt.% (MgO 50% + CNT 50%) the composite as 226 MPa and 684 MPa, respectively .The hardness, compression, and tensile strengths of the hybrid composites are higher than 1.51, 1.39, and 1.31 than that of the base metal. After heat treatment of T6, the maximum harness, compression, and tensile strengths are obtained by 102 HB, 730 MPa, and 277 MPa, respectively, which are 1.82, 1.49, and 1.61 times higher hardness than that that of the base Al2024 alloy. The main strengthening mechanism of nano-MgO particles and MWCNTs-reinforced Al2024/MgO/CNTs composites is observed by the precipitation strengthening mechanism.

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“…Al has weak hardness and strength for the indicated purpose given their low weight. Aluminum matrix composites, a successful method of enhancing the mechanical properties of aluminum alloys, are created by the adding of reinforcement particles to the matrix alloys [10]. The usage of nitrides, carbides, oxides, and a few intermetallic compounds as reinforcing particles for AMCs has been widespread.…”

Section: Introductionmentioning

confidence: 99%

Evaluation on the impact behavior of stir-casted Aluminum composites reinforced with SiC and Gr for lightweight applications

Alam,

Ya,

Gerewal

et al. 2024

J. Phys.: Conf. Ser.

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Increasing demands for lightweight materials in various industries, such as aerospace, automotive, and manufacturing, have led to a growing interest in the development of advanced materials with enhanced mechanical properties. One promising avenue for achieving lightweight and high-performance materials is the fabrication of aluminum-based composites reinforced with silicon carbide (SiC) and graphite (Gr) particles through stir casting. The current study examines the impact strength behavior of composites reinforced with AA6063 cast materials that contain different amounts of micron sized SiC particles and 5 weight percent graphite. By using liquid metallurgy, hybrid composites of AA6063, SiC, and Gr were created. The numerous created samples underwent the customary Charpy impact testing, and the impact strength was assessed. By reinforcing SiC and graphite to the aluminum matrix, a substantial increase in impact strength was observed. For the three test samples, the average impact strength of pure aluminum was found to be 7 Joule. Average Impact strength for aluminum with 10% silicon carbide was found to be 8 Joule, which is 14.28% greater than for pure aluminum. The average Impact strength for the composite of aluminum with 20% silicon carbide was 10 Joule, which represents a 42.85% increase in strength over pure aluminum.

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Study on tribological behaviour of aluminium hybrid composites strengthened with novel groundnut shell ash and boron carbide

Cited by 10 publications

References 42 publications

Experimental studies on the effects of reinforcing cowpat ash with aluminium composites

Experimental studies on the effects of reinforcing cowpat ash with aluminium composites

Development and characterization of Al2024/magnesium oxide/CNTs/ hybrid composites via stir casting method

Evaluation on the impact behavior of stir-casted Aluminum composites reinforced with SiC and Gr for lightweight applications

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