Friction and wear behavior of Al-SiC(n) hybrid composites with carbon addition

Hekner, Bartosz; Myalski, J.; Valle, Nathalie; Botor-Probierz, A.; Sopicka-Lizer, Małgorzata; Wieczorek, J.

doi:10.1016/j.compositesb.2016.09.103

Cited by 72 publications

(21 citation statements)

References 42 publications

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“…Recently, there has been an increasing number of research works related to the development of hybrid aluminum matrix composites (HAlMCs), which contain two or more ceramic components with different properties [17,18,19,20,21,22,23,24,25,26,27,28]. The main advantage of using hybrid-reinforced materials compared with composites with only one particle type is the possibility of achieving synergistic strengthening and lubrication effects [26,27,28]. In the literature, various methods have been described for the production of aluminum-based hybrid composites.…”

Section: Introductionmentioning

confidence: 99%

“…The next step is to shape the finished products via high-pressure die casting, squeeze casting, or centrifugal casting. Compared with the unit methods based on powder metallurgy proposed and described by Hekner et al [26,27], centrifugal casting methods are similar to squeeze casting [29], making it possible to obtain a series of near-net shape castings that are also locally reinforced [30]. An example of a practical use of such solutions are locally-reinforced pistons and engine blocks obtained by the high-pressure infiltration of ceramic preforms using liquid Al alloys [31,32].…”

Section: Introductionmentioning

confidence: 99%

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Tribological Properties of Single (AlSi7/SiCp, AlSi7/GCsf) and Hybrid (AlSi7/SiCp + GCsf) Composite Layers Formed in Sleeves via Centrifugal Casting

2019

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When designing the composition and structure of a composite material intended for tribological cooperation, many external and structural factors must be considered. The aim of this research was to compare the tribological properties (wear resistance and friction coefficient) of AlSi7Mg1Sr0.03/SiCp and AlSi7Mg1Sr0.03/GCsf single-reinforced composite layers with AlSi7Mg1Sr0.03/SiCp + GCsf hybrid composite layer formed in sleeves via vertical centrifugal casting. Profilometry enabled quantitative and qualitative analyses to be performed on the wear traces formed on investigated surfaces. The results show that a hybrid composite layer containing spherical glassy carbon particles had a significantly lower and more stable coefficient of friction (μ) and a higher wear resistance compared with single composite layers. The obtained effect was related to the mechanism of vitreous carbon consumption, which was crushed during operation, and then introduced between the cooperating friction surfaces. In this way, it acted as a solid lubricant, which stabilized the coefficient of friction and reduced the wear process.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Tribological Properties of Single (AlSi7/SiCp, AlSi7/GCsf) and Hybrid (AlSi7/SiCp + GCsf) Composite Layers Formed in Sleeves via Centrifugal Casting

2019

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“…The presence of GC stabilizes the COF on the level near 0.6. Detailed tribological properties and microstructure studies of those composites after the wear test at ambient and elevated temperature can be found elsewhere [ 46 ]. Glassy carbon modification seems to be more perspective and efficient in further research if formation of Al 4 C 3 is limited during densification stage.…”

Section: Discussionmentioning

confidence: 99%

Effect of Carbon in Fabrication Al-SiC Nanocomposites for Tribological Application

et al. 2017

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Aluminium-based hybrid composites are a new class of advanced materials with the potential of satisfying the demands in engineering applications. This paper describes the effects of carbon addition on the formation and properties of AMC with SiC nanoparticles reinforcement. The composites were produced via mechanical alloying followed by hot pressing. Three forms of carbon, graphite (GR), multiwalled carbon nanotubes (CNTs), and, for the first time, glassy carbon (GC), were used for the hybrid composites manufacturing and compared with tribological properties of Al-SiC composite without carbon addition. GC and CNTs enhanced formation of Al-SiC composite particles and resulted in a homogeneous distribution of reinforcing particles. On the other hand, GR addition altered mechanochemical alloying and did not lead to a proper distribution of nanoparticulate SiC reinforcement. Hot pressing technique led to the reaction between Al and carbon as well as SiC particles and caused the formation of Al4C3 and γ-Al2O3. The subsistence of carbon particles in the composites altered the predominant wear mechanisms since the wear reduction and the stabilization of the friction coefficient were observed. GC with simultaneous γ-Al2O3 formation in the hybrid Al-SiC(n)-C composites turned out to be the most effective additive in terms of their tribological behaviour.

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“…Rao and Das [9] investigated the effect of SiC and sliding speed on wear behavior of aluminum alloy and its composites. Hekner et al [10] studied the wear behaviors of SiC-, SiC/carbon nanotube (CN)-and SiC/ glassy carbon-reinforced Al matrix composites produced by mechanical alloying and hot pressing at 25 °C and 450 °C separately. They observed that the presence of both carbon forms significantly reduced wear in comparison with composites which do not include carbon.…”

Section: Introductionmentioning

confidence: 99%

Investigation of wear behavior of aged and non-aged SiC-reinforced AlSi7Mg2 metal matrix composites in dry sliding conditions

Çelik

Demir

Kılıçkap

et al. 2019

J Braz. Soc. Mech. Sci. Eng.

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Metal matrix composites (MMCs) with their splendid mechanical properties have been specifically designed for use in fields such as aerospace and aviation. The presence of hard ceramic particles in MMC increases the hardness of the matrix product and decreases its coefficient of friction. Therefore, the wear resistance is improved. Moreover, the mechanical properties of these composite materials can be improved by applying heat treatments. In this study, AlSi7Mg2 MMCs with 15 wt% SiC reinforcement were produced by squeeze casting technique. Some of the composites were aged by heat treatment. Hardness values of aged and non-aged composites were compared. In addition, abrasive wear behaviors of these composites were investigated on pin-on-disk device, depending on the load (7, 12 and 17 N), the sliding speed (0.2, 0.3 and 0.4 m/s) and the sliding distance (700, 1000 and 1300 m). Worn surfaces were also analyzed by scanning electron microscopy (SEM). As a result of the analyses, it was determined that both the hardness values and the wear resistance were higher in the composites subjected to aging treatment. Furthermore, it was observed that the increase in the applied load led up to the weight loss. The increase in the sliding distance increased both friction coefficient and weight loss. The increase in sliding speed also made way for the friction coefficient but ensured less weight loss. When SEM images were examined, it was ascertained that deformation and tribo-surface formation had a significant effect on weight losses.

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Friction and wear behavior of Al-SiC(n) hybrid composites with carbon addition

Cited by 72 publications

References 42 publications

Tribological Properties of Single (AlSi7/SiCp, AlSi7/GCsf) and Hybrid (AlSi7/SiCp + GCsf) Composite Layers Formed in Sleeves via Centrifugal Casting

Tribological Properties of Single (AlSi7/SiCp, AlSi7/GCsf) and Hybrid (AlSi7/SiCp + GCsf) Composite Layers Formed in Sleeves via Centrifugal Casting

Effect of Carbon in Fabrication Al-SiC Nanocomposites for Tribological Application

Investigation of wear behavior of aged and non-aged SiC-reinforced AlSi7Mg2 metal matrix composites in dry sliding conditions

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