RETRACTED: Abrasive wear of zircon sand and alumina reinforced Al–4.5 wt%Cu alloy matrix composites – A comparative study

Das, Sanjeev; Das, Siddhartha; Das, Karabi

doi:10.1016/j.compscitech.2006.05.001

Cited by 130 publications

(61 citation statements)

References 19 publications

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“…Uniform distribution of reinforcement and strong bonding between matrix and reinforcement may give better mechanical properties and corrosion resistance. A similar result has been reported by Das et al [13] in their comparative study between zircon and alumina reinforced composites.…”

Section: Compressive Strength Of Al-si-mg Alloy and Synthesized Composupporting

confidence: 84%

Microstructure, mechanical properties and corrosion behaviour of Al–Si–Mg alloy matrix/zircon and alumina hybrid composite

Kumar

Subramanian

Shalini

et al. 2015

Forsch Ingenieurwes

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advantages of these MMCs are reduced processing cost compared to other matrix materials such as magnesium and titanium [4] as well as ease of fabrication [1,5]. Mechanical properties and corrosion behaviour of Al MMCs are very important requiring consideration in composite material design to ensure material reliability in applications such as aerospace, defence, automotive and sports [1]. In addition to use of Al MMCs in various corrosive environments, a detailed study has to be carried out on aluminium-based alloys and their composites [6]. From the available literature, it is found that the mechanical properties and corrosion behaviour of these composites are influenced by several factors such as the type, size and distribution of reinforcement added, method used for preparation of the composite, alloy composition and the interface between the matrix and reinforcement [7,8]. Any change in the above parameters can significantly alter the properties of these composites [8,9]. These properties are also influenced by the presence of heterogeneities such as reinforcement, voids, secondary phase precipitates and interaction products [9]. Although Al MMCs with different combinations of reinforcements have been widely investigated, only limited literature is available on zircon and alumina reinforced MMC. The choice of zircon and alumina as reinforcement is believed to significantly improve the mechanical properties and corrosion behaviour of Al-alloy-based hybrid composite. Hence in this work an attempt has been made to study the microstructure, mechanical properties and corrosion behaviour of this new combination of hybrid composite. AbstractIn the present study, the effect of reinforcement on microstructure, mechanical properties and corrosion behaviour of aluminium-silicon-magnesium (Al-Si-Mg) alloy matrix hybrid composites reinforced with varying amounts of zircon and alumina has been investigated. Hardness and room temperature compressive tests were performed on Al-Si-Mg alloy as well as composites. Hardness and compressive strength was found to be higher for composites containing 3.75 % ZrSiO 4 + 11.25 % Al 2 O 3 . Similarly, Al-Si-Mg alloy and its composites were studied for corrosion behaviour in 1 N HCl corrosive media. The weight loss of all the composites was found to decrease with time due to the formation of passive oxide layer on the sample surface. The results obtained indicate that composites exhibit superior mechanical properties and corrosion resistance compared to unreinforced alloy.

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Section: Compressive Strength Of Al-si-mg Alloy and Synthesized Composupporting

confidence: 84%

Microstructure, mechanical properties and corrosion behaviour of Al–Si–Mg alloy matrix/zircon and alumina hybrid composite

Kumar

Subramanian

Shalini

et al. 2015

Forsch Ingenieurwes

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“…This huge amount of increase in wear resistance in nanocomposite is attributed to the inclusion of hard ceramic nanoparticulates (SiC+B4C) which act as the strengthening element. Similar results were previously reported by S. Kumar et al 2010 andSanjeev Das et al 2007 [28,29]. It was also concluded that the addition of nanoparticulates and the ultrasonication processing of nanocomposites had …”

Section: Microhardnesssupporting

confidence: 81%

Abrasive wear behaviour of aluminium hybrid nanocomposites produced by ultrasonication assisted casting method

Lakshmanan¹

2017

Int. J. Automot. Mech. Eng.

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In this investigation, the abrasive wear resistance of Al/ (B4C+SiC) hybrid nanocomposites was tested against hard SiC abrasive sheets and compared to those of unreinforced Al alloy. Three loadings of nano-SiC (0.5, 1.0, and 1.5 Wt. %) and one loading of nano-B4C (0.5 Wt. %) were mixed with an aluminium alloy to produce the aluminium hybrid nanocomposites using an ultrasonication assisted casting method. Scanning electron microscopy showed a uniform distribution of nanoparticles in the Al alloy. Transmission electron microscopy indicated an increase in the dislocation density of nanocomposites compared to monolithic Al. The abrasive wear experiments were conducted on a Pin-on-Disc tribometer using pins of 9 mm diameter and 15 mm height under dry sliding conditions at room temperature. The wear rate in terms of wear volume per unit weight was calculated for both unreinforced alloy and hybrid nanocomposites. It was observed that Al hybrid nanocomposites showed superior wear resistance properties compared to the unreinforced sample. The nanocomposite with 1.5 Wt.% nano-SiC and 0.5 Wt.% nano-B4C possessed better wear resistance properties compared to the other composites tested in this work. The worn out surface of the Al alloy and its hybrid nanocomposites imply that the wear mechanism is through plowing action on the surface by SiC abrading particulates. The nanocomposite with 1.5 Wt.% SiC and 0.5 Wt.% B4C showed 88.32 % increase in wear resistance compared to the monolithic Al. This combination of material can be selected for abrasive wear resistance applications.

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“…Both dimensional and wear properties were found to be comparable to those of conventional iron pulleys. Abrasive wear of Al-4.5% Cu matrix reinforced with Al 2 O 3 and ZrSiO 4 particulate showed that wear resistance property of the composite increases with the decrease in the particle size [21]. Furthermore, the zircon reinforced composite showed high resistance to wear in comparison to the alumina reinforced composite [21].…”

Section: Introductionmentioning

confidence: 92%

Dry Sliding Wear Behavior of Zircon Sand Reinforced Al–Si Alloy

Kaur

Pandey

2010

Tribol Lett

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The emerging demand of light weight alloys and composites for the engineering and structural applications leads to explore the possibility to develop new techniques to achieve materials of high performance. In the present study, Al-Si/zircon sand reinforced composite has been developed via spray forming technique. Dry sliding wear behavior of as cast Al-Si base alloy and spray formed Al-Si/zircon sand reinforced composite containing 8% V f of zircon sand has been analyzed. An isotropic wear property of spray formed composite has been checked by selecting the spray formed preform in both horizontal and vertical sections of deposit. The wear tests which were carried out at loads of 14.7, 24.5, 34.3, 44.1, and 53.9 N have shown that spray formed composite is more wear resistant in comparison to the cast Al-Si alloy. Moreover, wear coefficient in case of composite is also found to be lower than base alloy. Optical and scanning electron microscopies have been carried out to furnish a suitable explanation for observed wear behavior of composite and alloy.

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RETRACTED: Abrasive wear of zircon sand and alumina reinforced Al–4.5 wt%Cu alloy matrix composites – A comparative study

Cited by 130 publications

References 19 publications

Microstructure, mechanical properties and corrosion behaviour of Al–Si–Mg alloy matrix/zircon and alumina hybrid composite

Microstructure, mechanical properties and corrosion behaviour of Al–Si–Mg alloy matrix/zircon and alumina hybrid composite

Abrasive wear behaviour of aluminium hybrid nanocomposites produced by ultrasonication assisted casting method

Dry Sliding Wear Behavior of Zircon Sand Reinforced Al–Si Alloy

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