Effect of Graphite Particle Reinforcement on Dry Sliding Wear of SiC/Gr/Al Composites

Leng, Jinfeng; Jiang, Longtao; Gao, Wu; Tian, Shuai; Chen, Guoqin

doi:10.1016/s1875-5372(10)60059-8

Cited by 70 publications

(27 citation statements)

References 12 publications

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“…Tribological properties of MMCs have been extensively investigated by various researchers [3,[6][7][8][9][10][11][12][13][14]. The results have shown that the wear performance of MMCs is higher than that of unreinforced matrices [10,[15][16][17] and is shown in Fig.…”

Section: Wear and Friction Propertiesmentioning

confidence: 99%

“…In this regard, efforts have been made to study the mechanical behavior and wear resistance of two aluminum matrix composites. The results showed that hybrid aluminum alloy matrix composite reinforced by SiC and graphite (20 % SiC-3 % and 10 % Gr-Al) has a better mechanical properties and wear resistance than aluminum alloy matrix composite reinforced by SiC (20% SiC-A356) [6].…”

Section: Volume Fractionmentioning

confidence: 99%

“…Within the micro-composites, the effect of the particle size on the wear rate of the MMCs is not clear. Some researchers have indicated a decrease in the wear rate of the MMCs with an increase in the particle size of the reinforcements [6,23,[86][87][88]. Efforts have been made to study the wear rate of 2014 Al matrix composite reinforced by SiC with different particle sizes.…”

Section: Particle Sizementioning

confidence: 99%

“…An approach in SiC p /Al (SiC particles embedded in Al matrix) composite production is to incorporate graphite particles as additional reinforcement into the SiC p /Al composites. The graphite-embedded SiC p /Al composites showed better wear resistance and low coefficient of friction when compared to SiC p /Al composites without graphite reinforcement [3,6,7].…”

Section: Introductionmentioning

confidence: 96%

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Tribology of Metal Matrix Composites

Rohatgi

Tabandeh-Khorshid

Omrani

et al. 2013

Tribology for Scientists and Engineers

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Metal matrix composites (MMCs) are an important class of engineering materials that are increasingly replacing a number of conventional materials in the automotive, aerospace, marine, and sports industries due to their lightweight and superior mechanical properties. In MMCs, nonmetallic materials are embedded into the metals or the alloys as reinforcements to obtain a novel material with attractive engineering properties, such as improved ultimate tensile strength, ductility, toughness, and tribological behavior. In this chapter, an attempt has been made to summarize the tribological performance of various MMCs as a function of several relevant parameters. These parameters include material parameters (size, shape, volume fraction, and type of the reinforcements), mechanical parameters (normal load and sliding speed), and physical parameters (temperature and the environment). In general, it was shown that the wear resistance and friction coefficient of MMCs are improved by increasing the volume fraction of the reinforcements. As the normal load and sliding speed increase, the wear rate of the composites increases and the friction coefficient of the composites decreases. The wear rate and friction coefficient decrease with increasing temperature up to a critical temperature, and thereafter both wear rate and friction coefficient increase with increasing temperature. The nano-composites showed best friction and wear performance when compared to micro-composites.

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Section: Wear and Friction Propertiesmentioning

confidence: 99%

Section: Volume Fractionmentioning

confidence: 99%

Section: Particle Sizementioning

confidence: 99%

Section: Introductionmentioning

confidence: 96%

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Tribology of Metal Matrix Composites

Rohatgi

Tabandeh-Khorshid

Omrani

et al. 2013

Tribology for Scientists and Engineers

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“…Jinfeng et al [62] studied the effect of graphite (abbreviated Gr) particle reinforcement on dry sliding wear of SiC-Gr-Al composites. The aluminum alloy matrix composites composed of 40 % SiC, 5 % graphite, and 55 % Al with various sizes of graphite particles were fabricated by squeeze casting technology.…”

Section: Self-lubricating Behavior Of Aluminum-graphite Compositesmentioning

confidence: 99%

Self-Lubricating Behavior of Graphite-Reinforced Composites

Menezes

Reeves

Rohatgi

et al. 2013

Tribology for Scientists and Engineers

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Lubricants are extensively used between contacting surfaces to reduce friction and wear. Typically, liquid lubricants are used to achieve low friction and wear. However, these lubricants are not effective in elevated temperature applications or vacuum environments. For these reasons, solid lubricants are utilized to meet these operational needs, where liquid lubrication is impractical. Solid lubricants are only effective as long as they are present in the tribo-interface. Therefore, it is desirable to provide a constant supply of solid lubricant material to the contacting surface. This is often achieved by incorporating solid lubricants as a second phase in the base material. These composite materials have the ability to achieve low friction and wear at the contact surfaces without any external supply of lubrication during sliding. Metal matrix composites reinforced with lamellar solid lubricant particles such as graphite are being used as self-lubricating materials for various engineering applications. In this chapter, the tribological behavior of metal and ceramic matrix composites reinforced with graphite particles has been reviewed. More specifically, copper-graphite, nickel-graphite, magnesiumgraphite, silver-graphite, aluminum-graphite, silicon nitride-graphite, and alumina-graphite composites are studied. The influence of various environmental and mechanical parameters on the friction coefficient and wear rate is discussed. It was found that the amount of graphite released on the worn surface forms a thin transfer film on the contact surfaces. This transfer film reduces the overall friction coefficient and wear rate. The presence of the graphite-based transfer film increases the seizure resistance and enables the contacting surfaces to run under boundary lubrication without galling. The formation and retention of this transfer film on the sliding surface as well as its composition, area fraction, thickness, and hardness are important factors in controlling the friction and wear behavior of the material. The effectiveness of the transfer film also depends on the nature of the sliding surface, the test condition, environment, and the graphite content in the composite.

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