Wear Behaviour of Al-6061/SiC Metal Matrix Composites

Mishra, Ashok Kumar; Srivastava, Rajesh K.

doi:10.1007/s40032-016-0284-3

Cited by 38 publications

(17 citation statements)

References 7 publications

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“…It has been reported by several researchers [27][28][29][30][31] that silicon carbide (SiC) is an ideal reinforcement for several matrix materials, including aluminium because of its significant ability to enhance the strength, modulus, thermal stability, and wear resistance of the matrix materials. The Al-Si based matrix alloy and composite were prepared by the liquid metallurgy route using graphite crucibles for melting.…”

Section: Materials Preparationmentioning

confidence: 99%

Erosive wear response of SiCp reinforced aluminium based metal matrix composite: Effects of test environments

Khan¹,

Dixit²

2017

J. MECH. ENG. SCI.

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In the present investigation, the erosive wear behaviour of a 10 wt.% SiC particles reinforced aluminium based metal matrix composite has been studied. The composite was fabricated by dispersing SiC particles of size 50-100 µm into the matrix alloy. The resulting material cast was characterised in terms of microstructure, hardness and erosive wear behaviour. The wear response was examined by the sample rotation technique using the slurry pot erosion tester. The effects of speed, sand content and slurry environment on the slurry wear behaviour have been studied. It was observed from the microstructural studies that the interfacial bonding strength between the aluminium matrix and the SiC particles was good and the particles were distributed uniformly. Moreover, in basic medium matrix alloy exhibited a minimum wear rate compared to the composite whereas in the case of an acidic and saline medium, an improved wear resistance was obtained in the case of the composite. The rate of material loss is found to be higher with the increased sand concentration due to the increased impinging action of the sand particles. Also, the rotational speed has a mixed effect on the wear rate. It can be concluded that the material loss was caused by the synergistic effect of corrosive, erosive and abrasive actions of the slurry medium although in the acidic medium, erosion was the dominant mode of material removal whereas corrosion was dominant in the case of a basic medium.

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Section: Materials Preparationmentioning

confidence: 99%

Erosive wear response of SiCp reinforced aluminium based metal matrix composite: Effects of test environments

Khan¹,

Dixit²

2017

J. MECH. ENG. SCI.

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“…The various properties of these alloys can be further enhanced by the addition of reinforcement materials, such as alumina (Al 2 O 3 ) and silicon carbide (SiC), which has led to the development of highly strong metal matrix composite materials with tailorable properties for specific applications. Among the ceramic reinforcements, SiC has been the most widely investigated 5 – 8 . SiC has excellent properties including high electron mobility, high thermal conductivity, high tolerance for electrical breakdown, high hardness, and high mechanical strength 9 .…”

Section: Introductionmentioning

confidence: 99%

Enhanced mechanical and wear properties of Al6061 alloy nanocomposite reinforced by CNT-template-grown core–shell CNT/SiC nanotubes

Yoo

Kang

Trinh

et al. 2020

Sci Rep

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Novel one-dimensional template-grown coaxial SiC@carbon nanotubes (SiC@CNTs) were fabricated using a chemical vapor deposition method. To facilitate the formation of SiC on CNT template, a molecular-level mixing process was used to coat the surface of commercial multiwalled carbon nanotubes (MWCNTs) by Fe 2 o 3. These Fe-CNTs were transformed into SiC@CNT nanotubes, which were then mixed with Al6061 alloy and consolidated by spark plasma sintering to obtain Al6061-SiC@ CNT nanocomposites. The addition of 5 vol% SiC@CNT resulted in 58% enhancement in Young's modulus and 46% enhancement in yield strength. Furthermore, the friction coefficient was reduced by 31% and the specific wear rate was reduced by 45%. The enhancement effect of Al6061-SiC@CNT on the mechanical and tribological properties was much greater than those of traditional nanoparticles, nanowires, and whiskers of SiCs. The extraordinary strengthening behavior of SiC@CNT, when compared with that of other SiC analogues, is attributed to the coaxial structure consisting of a SiC shell and CNT core. This coaxial structure enhanced the mechanical and tribological properties beyond that attainable with traditional SiC-derived reinforcements. Metal-matrix composites (MMCs) are increasingly being used in aerospace and automobile industries due to their excellent properties, such as elastic modulus, hardness, tensile strength, and wear resistance 1,2. Commonly used metallic matrices include Al, Mg, Ti, and their alloys. Generally, alloys are the preferred matrix materials for MMCs, due to possibilities to additional strengthening effects and flexible property design. For MMCs, fibers, whiskers, and particulates are commonly used as reinforcements 2,3. Amongst the alloy systems, Al6061 alloy is a popular choice as a matrix material, due to their high corrosion resistance and strength, which enables the material to be used in various structural applications, including automotive, construction, and marine engineering 4. The various properties of these alloys can be further enhanced by the addition of reinforcement materials, such as alumina (Al 2 O 3) and silicon carbide (SiC), which has led to the development of highly strong metal matrix composite materials with tailorable properties for specific applications. Among the ceramic reinforcements, SiC has been the most widely investigated 5-8. SiC has excellent properties including high electron mobility, high thermal conductivity, high tolerance for electrical breakdown, high hardness, and high mechanical strength 9. Many researchers have reported enhanced mechanical and wear properties of Al6061 alloys reinforced with SiCs 10-15. For example, Kumar et al. 12 reported fabrication of SiC particle reinforced Al6061 alloy composites by liquid metallurgy route via stir casting technique. In the present study, the authors suggest that the addition of SiC particles have significantly enhanced both mechanical and wear properties of the resulting composites. Yu

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“…In the case of 10% SiC composite the corresponding reduction in the wear rate is 15-25%. Mishra et al [8] investigated the tribological conduct of Al-6061 / SiC metal matrix composite by using Taguchi's techniques.…”

Section: Introductionmentioning

confidence: 99%

Wear Characteristics of Al-Based Composite Material

Naemah¹,

Kader²,

Abed³

2018

djps

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This research studies the wear characteristic of Al-based composite material. Stir casting technique was used to fabricate composite samples of Al-6061 and Al-6061 reinforced with different percentage ages (5%, 10%, 15% weight) of silicon carbide particles (SiC). Abrasive wear behavior of composite was studied by dry sliding pin on disc method. Different parameters were taken into consideration including, applied load, sliding speed, and weight percentage age of silicon carbide particles. Wear test-sliding distance ranged from 1044 m to 3123 m measured over different times (10 min, 20 min, and 30 min). Normal loads range from 10 N to 30 N, at sliding speeds of 1.74m/s. Specific wear rate was calculated considering weight loss calculation which was measured by using digital electronic balance (up to 0.01 g accuracy). The results show that by increasing the sliding speed and the applied load we get the highest wear rate in the aluminum alloy, while with the Al/SiC composite, the wear rate decreases with the increase of SiC percentage age. It was found that hardness increases simultaneously when SiC percentage age increases. The highest hardness in (AL-15 wt. % SiC) was recorded.

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Wear Behaviour of Al-6061/SiC Metal Matrix Composites

Cited by 38 publications

References 7 publications

Erosive wear response of SiCp reinforced aluminium based metal matrix composite: Effects of test environments

Erosive wear response of SiCp reinforced aluminium based metal matrix composite: Effects of test environments

Enhanced mechanical and wear properties of Al6061 alloy nanocomposite reinforced by CNT-template-grown core–shell CNT/SiC nanotubes

Wear Characteristics of Al-Based Composite Material

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