Development of alumina reinforced aluminum metal matrix composite with enhanced compressive strength through squeeze casting process

Muraliraja, R.; Arunachalam, R. M.; Al-Fori, Ibrahim; Al-Maharbi, Majid; Piya, Sujan

doi:10.1177/1464420718809516

Cited by 33 publications

(23 citation statements)

References 35 publications

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“…The improvement in hardness by incorporation of ceramic particles has already been reported in several literatures. 17,18,29,36,40,41…”

Section: Resultsmentioning

confidence: 99%

Mechanical and microstructural analysis of Al-Al₂O₃/B4C hybrid composites

Gupta

2020

Proceedings of the Institution of Mechanical Engineers, Part L:

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The present work aims to enhance the mechanical performance of monolithic Al alloy and single reinforced metal matrix composite using a hybridization technique. The microparticles of alumina and boron carbide were reinforced into cast Al alloy (6061) in a systematic varying ratio (i.e.100/0, 75/25, 50/50, 25/75 and 0/100) to prepare the hybrid metal matrix composites via stir casting method. The mechanical properties (i.e. tensile, impact, hardness and flexural) of the prepared composites were investigated as per ASTM standards. Furthermore, microstructural analysis of unfractured and fractured composite samples was also carried out using Scanning Electron Microscope. It was observed that hybrid composites comprising of microparticles revealed an enhanced tensile, flexural and hardness properties, and reduced impact energy and porosity as compared to Al alloy and single reinforced metal matrix composites. The highest values of tensile strength and modulus were offered by a hybrid composite (B50A50), which was 40% and 52.12% higher than that of Al alloy. Furthermore, there was an improvement of 105.72% in flexural strength and a reduction of 23.88% in impact energy for composite B50A50 than that of Al alloy. The present developed hybrid metal matrix composites can be proposed to be used in automobile parts and construction applications.

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“…The improvement in hardness by incorporation of ceramic particles has already been reported in several literatures. 17,18,29,36,40,41…”

Section: Resultsmentioning

confidence: 99%

Mechanical and microstructural analysis of Al-Al₂O₃/B4C hybrid composites

Gupta

2020

Proceedings of the Institution of Mechanical Engineers, Part L:

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“…Inhomogeneous dispersion of the reinforcement particles in the form of clusters as seen in Figure 6(e), and lower interfacial bonding may also be the reason for the decrement in the compressive strength. 31 Tensile strength. Tensile strength of the composites was presented in terms of the UTS as shown in Figure 11, where UTS is increased from 246.66 to 397.33 MPa with the addition of LBA and B 4 C particles.…”

Section: Mechanical Characterizationmentioning

confidence: 99%

Microstructural and mechanical characterization of lamb bone ash and boron carbide reinforced ZA-27 hybrid metal matrix composites

Singh

Mishra

Singh

2021

Proceedings of the Institution of Mechanical Engineers, Part L:

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ZA-27 hybrid metal matrix composites reinforced with lamb bone ash (LBA) and boron carbide (B4C) were fabricated by employing stir casting route. Single-reinforced composite with 5 wt.% of LBA and hybrid composites reinforced with LBA/B4C in the ratio of (3.75:1.25, 2.5:2.5, 1.25:3.75) were developed. Composites were processed as per ASTM standards and subjected to physical characterization (density and porosity), microstructural characterization, and mechanical characterization (hardness, compressive strength, tensile strength, and impact strength). Microstructural studies of ZA-27 composites using a scanning electron microscope (SEM) revealed the uniform dispersion of reinforcements. X-ray diffraction (XRD) patterns and energy-dispersive X-ray spectroscopy (EDS) of the developed composites confirmed the existence of LBA and B4C particles in the matrix. The density of the composites declined, and porosity increased with the increment in B4C wt.% compared with base alloy. Mechanical properties like hardness, compressive strength, and tensile strength improved significantly in the case of hybrid composites than single-reinforced composite. Hardness, compressive strength and tensile strength of the hybrid composites increased to a maximum of 41.12%, 24.40%, 61.08% respectively compared to the base alloy, whereas single-reinforced composite showed maximum improvement of 19.26% (hardness), 11.16% (compressive strength), and 28.38% (tensile strength) compared to the base alloy. Ductility of the composites decreased with the addition of reinforcements. Impact strength of the composites showed a marginal reduction; however, the reduction was higher in the single-reinforced composite than hybrid reinforced composites. Fractured morphology showed dimples, cracks, tear ridges, and voids.

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“…The major problem with stir casting is segregation or dusting of reinforced particles [13]. The squeeze casting process combines casting and forging to overcome casting defects such as pitting, porosity, and segregation of reinforcements [16]. Squeeze casting is a nonconventional process.…”

Section: Fabrication and Properties Of Sic P /Al Matrix Composites 21 Fabricationmentioning

confidence: 99%

A review on conventional and nonconventional machining of SiC particle-reinforced aluminium matrix composites

Chen

2020

Adv. Manuf.

112

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Among the various types of metal matrix composites, SiC particle-reinforced aluminum matrix composites (SiC p /Al) are finding increasing applications in many industrial fields such as aerospace, automotive, and electronics. However, SiC p /Al composites are considered as difficult-to-cut materials due to the hard ceramic reinforcement, which causes severe machinability degradation by increasing cutting tool wear, cutting force, etc. To improve the machinability of SiC p /Al composites, many techniques including conventional and nonconventional machining processes have been employed. The purpose of this study is to evaluate the machining performance of SiC p /Al composites using conventional machining, i.e., turning, milling, drilling, and grinding, and using nonconventional machining, namely electrical discharge machining (EDM), powder mixed EDM, wire EDM, electrochemical machining, and newly developed high-efficiency machining technologies, e.g., blasting erosion arc machining. This research not only presents an overview of the machining aspects of SiC p /Al composites using various processing technologies but also establishes optimization parameters as reference of industry applications.

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Development of alumina reinforced aluminum metal matrix composite with enhanced compressive strength through squeeze casting process

Cited by 33 publications

References 35 publications

Mechanical and microstructural analysis of Al-Al₂O₃/B4C hybrid composites

Mechanical and microstructural analysis of Al-Al₂O₃/B4C hybrid composites

Microstructural and mechanical characterization of lamb bone ash and boron carbide reinforced ZA-27 hybrid metal matrix composites

A review on conventional and nonconventional machining of SiC particle-reinforced aluminium matrix composites

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Development of alumina reinforced aluminum metal matrix composite with enhanced compressive strength through squeeze casting process

Cited by 33 publications

References 35 publications

Mechanical and microstructural analysis of Al-Al2O3/B4C hybrid composites

Mechanical and microstructural analysis of Al-Al2O3/B4C hybrid composites

Microstructural and mechanical characterization of lamb bone ash and boron carbide reinforced ZA-27 hybrid metal matrix composites

A review on conventional and nonconventional machining of SiC particle-reinforced aluminium matrix composites

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Mechanical and microstructural analysis of Al-Al₂O₃/B4C hybrid composites

Mechanical and microstructural analysis of Al-Al₂O₃/B4C hybrid composites