Effect of addition of graphite particulates on the wear behaviour in aluminium–silicon carbide–graphite composites

Suresha, S.; Sridhara, B.K.

doi:10.1016/j.matdes.2009.11.015

Cited by 175 publications

(76 citation statements)

References 8 publications

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“…12(a) and 12(b)) [30,80]. These features may be attributed to the lower temperature rise in this case as compared with the Al/5%SiC/10%Gr composite.…”

Section: Surface and Subsurface Behaviormentioning

confidence: 78%

“…The results indicate that wear of hybrid composites initially decreases with increasing Gr contents up to 5 wt.% and then increases for 10 wt.% Gr contents (for fixed percentage of SiC) in the hybrid composites. Overall, the presence of Gr particles improves the tribological properties of Al-based composites [30,[79][80][81]. Notably, the wear rate of Al composites increases with increased load because of adhesive wear.…”

Section: Influence Of Gr Additionmentioning

confidence: 94%

“…The Al/SiC composites reinforced with graphite (Gr) particles have shown significant potential in wear resistance applications [28][29][30][31][32][33]. Previous studies have found that Gr particles smear at the interface and reduce the friction coefficient during sliding wear of Al/SiC/Gr hybrid composites.…”

Section: Introductionmentioning

confidence: 99%

“…Although the presence of solid lubrication can lead to low wear rates, but the selection of Gr contents is a key influencing parameter as it can adversely affect the strength of composites [30,31,34]. Therefore, the influence of Gr contents on the tribological properties of Al/SiC/Gr composites must be analyzed.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Fabrication characteristics and tribological behavior of Al/SiC/Gr hybrid aluminum matrix composites: A review

Singh

2016

Friction

115

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Improvement in surface properties and retainment of bulk properties are essential requirements for the design of components for wear resistance applications. This paper summarizes various features of Al/SiC/Gr hybrid composites that can be employed in different tribological applications. The study has revealed that the processing route plays a significant role in obtaining a homogeneous structure of these composites. In powder metallurgy, the selection of sizes of the matrix and reinforcement powders is crucial, whereas the wettability between the reinforcement particles and molten alloy is a major challenge in liquid metallurgy. The incorporation of SiC particles increases the mechanical strength and wear performance of Al composites. However, ejection of these particles can reduce the wear performance of Al composites under severe conditions. The addition of Gr particles helps in the formation of a thick and extensive tribolayer on the wear surface. This layer reduces direct contact between the rubbing surfaces, thereby decreasing the wear rate under certain conditions. Morphological analysis of worn surfaces has confirmed that the hybrid composites exhibit superior wear properties than the pure Al alloy and the ceramic-reinforced composite. However, increase in the Gr content beyond a limiting value can deteriorate the tribological properties of these composites. Therefore, true optimization of a tribosystem (of the hybrid composite and counterface) can be achieved by selecting appropriate reinforcement contents.

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“…12(a) and 12(b)) [30,80]. These features may be attributed to the lower temperature rise in this case as compared with the Al/5%SiC/10%Gr composite.…”

Section: Surface and Subsurface Behaviormentioning

confidence: 78%

Section: Influence Of Gr Additionmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Fabrication characteristics and tribological behavior of Al/SiC/Gr hybrid aluminum matrix composites: A review

Singh

2016

Friction

115

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“…Sridhara investigates the influence of addition of graphite (Gr) particulates as a second reinforcement on the tribological behaviour of aluminium matrix composites reinforced with silicon carbide (SiC) particulates. Dry sliding wear tests have been performed to study the influence of Gr particulates, load, sliding speed and sliding distance on the wear of hybrid composite [5] .Load and sliding distance show a positive influence on wear implying increase of wear with increase of either load or sliding distance or both [5]. Where as speed shows a negative influence on wear indicating decrease of wear with increase of speed.…”

Section: Introductionmentioning

confidence: 99%

Dry Sliding Wear Behavior of Hybrid Metal Matrix Composites

.¹

2014

IJRET

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Potentiality of artificially aged aluminium 6061 hybrid composites reinforced with granite and graphite micro–fillers for structural applications

Sharma

Pai

Gowrishankar

2017

Materialwissenschaft Werkst

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The current study explores the feasibility of artificial aging treatment to aluminium alloy 6061 hybrid composites reinforced with graphite and fine granite particulates to suit structural applications. Aging at 100 °C retrieved a better response of the hybrid composites as compared to that at 150 °C in terms of peak hardness and strength. Among the five different stir‐cast compositions, the composition of aluminium 6061 with 2 wt. % graphite and 4 wt. % granite showed enhanced mechanical properties than that of the base alloy as well as mono reinforcement type composites which was attribued to the formation of rod‐shaped β‐Mg2Si precipitates.

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Effect of addition of graphite particulates on the wear behaviour in aluminium–silicon carbide–graphite composites

Cited by 175 publications

References 8 publications

Fabrication characteristics and tribological behavior of Al/SiC/Gr hybrid aluminum matrix composites: A review

Fabrication characteristics and tribological behavior of Al/SiC/Gr hybrid aluminum matrix composites: A review

Dry Sliding Wear Behavior of Hybrid Metal Matrix Composites

Potentiality of artificially aged aluminium 6061 hybrid composites reinforced with granite and graphite micro–fillers for structural applications

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