SiC-reinforced aluminium metal matrix composites

Nair, S. V.; Tien, J. K.; Bates, R. C.

doi:10.1179/imr.1985.30.1.275

Cited by 150 publications

(9 citation statements)

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“…As a result, the strength of the composite that contain hard particles increases with the volume fraction of the particles. 30–44 This due to the fact that the particles which are harder and stiffer than the matrix tend to restrain matrix movement in the vicinity of each particle. This trend increased particularly when the adhesion force between the matrix and particles is very high.…”

Section: Resultsmentioning

confidence: 99%

A simple and economical method for the synthesis of steel-reinforced copper composite

Kafiah

Al-Haidary

Masadeh

et al. 2020

Journal of Composite Materials

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The present study explores a new method of steel particle-reinforced copper matrix composite synthesis. Steel reinforced copper was prepared by stir casting processing method at variable percentages between 10 wt% and 50 wt%. Characterization and mechanical testing were performed on these composites using a variety of techniques. The results showed that the microstructure of the composites has a uniform distribution of steel particles in the matrix with good interfacial integrity. Brinell hardness, tensile and yield strengths, impact energy and compressive yield strength of the composites increased with increasing steel particle contents. Vickers micro-hardness increased markedly at the interface region between particle and matrix evident by the hardness maps. The friction coefficient increased proportionally with increasing steel particle content in the composite, but the contrary was noticed for accumulative wear amount. A slight decrease in deformability is expected by increasing particle content. A ductile fracture was noticed in fractographs of fracture surfaces. Cracks are propagated in the Cu matrix up to the point of fracture, i.e. not through the interfacial boundaries.

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Section: Resultsmentioning

confidence: 99%

A simple and economical method for the synthesis of steel-reinforced copper composite

Kafiah

Al-Haidary

Masadeh

et al. 2020

Journal of Composite Materials

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“…During the last half century, particulate reinforced aluminum matrix composites (PRAMCs) have attracted much research attention in the field of materials engineering [1][2][3][4][5]. Therefore, various manufacturing and processing routes have been explored and proposed [3,[6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Effects of Ti-coating layer on the distribution of SiCP in the SiCP/2014Al composites

et al. 2015

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a b s t r a c t A Ti 5 Si 3 coating layer was plated on the surface of SiC P by salt-bath plating. The coating layer greatly promoted the wettability of SiC by the molten Al with the final contact angle decreasing from 94°of uncoated one to 4°at 973 K. The 2 vol.% Ti-coated SiC P /2014Al composites were fabricated by stir casting with the addition of 20 vol.% Ti-coated SiC P /2014Al master alloy. Due to the significant improvement of the wetting between the Ti-coated SiC and Al melt, the interfacial energy between Ti-coated SiC P and Al melt is significantly higher than that between α-Al and Ti-coated SiC P . Therefore, Ti-coated SiC P was more easily engulfed into α-Al grains during solidification, leading to a more homogeneous distribution of SiC P and obvious improvement of tensile property for the composites. The yield strength, ultimate tensile strength and fracture strain of the 2 vol.% Ti-coated SiC P /2014Al composites increased from 389 MPa, 525 MPa and 4.8% of the 2 vol.% uncoated SiC p /2014Al composites to 420 MPa, 576 MPa and 6.8%, respectively. The present work offers a new method to improve the dispersal uniformity of SiC P in the composites.

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“…SiC particulates are chemically compatible with aluminum and form competent bonding with the matrix along with other advantages like excellent workability, good machinability, thermal conductivity and low cost; it is regarded as one of the most adopted reinforcement for AMCs. 12,13 Better tribological characteristics can be obtained using B 4 C as it shows distinct mechanical properties of an attractive reinforcement such as high stiffness and hardness along with low density, even lower than most of the aluminum alloys, 14 but B 4 C is not readily adopted as reinforcement for fabrication of AMCs because of its high cost as compared to SiC and many other particulates. 14 In the present work, the combination of SiC and B 4 C particulates is selected for fabrication of aluminum hybrid composites with base material AA6082-T6.…”

Section: Introductionmentioning

confidence: 99%

Dry sliding wear behaviour of AA6082-T6/SiC/B₄C hybrid metal matrix composites using response surface methodology

Singh

Goyal

2016

Proceedings of the Institution of Mechanical Engineers, Part L:

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In the present work, dry sliding wear behaviour of hybrid aluminum metal matrix composites is carried out. A mixture of silicon carbide and boron carbide is used in equal fraction as reinforcement with base material AA6082-T6 to prepare AA6082-T6/SiC/B 4 C hybrid metal matrix composites using stir casting technique. The weight percentage of silicon carbide and boron carbide mixture taken to prepare hybrid composites is 5, 10, 15 and 20. The wear behaviour of Al-SiC-B 4 C composites is investigated using a pin-on-disc apparatus at room temperature, and optimization of process parameters is done using response surface methodology. The weight percentage of reinforcement, sliding speed, load and sliding distance are selected as process parameters with five levels of each. Analysis of variance shows that wear increases with increase of load or sliding distance and decreases with an increase in reinforcement or sliding speed. The experimental results revealed that the wear of Al-SiC-B 4 C hybrid composites has been influenced most by the sliding distance and least by weight percentage of reinforcement. The interaction between load-sliding speed is the only significant two-factor interaction in the present model which increases wear rate in fabricated hybrid composites. Further, the experimental results obtained are verified by conducting confirmation tests, and the errors found are within 3 to 7%.

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SiC-reinforced aluminium metal matrix composites

Cited by 150 publications

References 0 publications

A simple and economical method for the synthesis of steel-reinforced copper composite

A simple and economical method for the synthesis of steel-reinforced copper composite

Effects of Ti-coating layer on the distribution of SiCP in the SiCP/2014Al composites

Dry sliding wear behaviour of AA6082-T6/SiC/B₄C hybrid metal matrix composites using response surface methodology

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SiC-reinforced aluminium metal matrix composites

Cited by 150 publications

References 0 publications

A simple and economical method for the synthesis of steel-reinforced copper composite

A simple and economical method for the synthesis of steel-reinforced copper composite

Effects of Ti-coating layer on the distribution of SiCP in the SiCP/2014Al composites

Dry sliding wear behaviour of AA6082-T6/SiC/B4C hybrid metal matrix composites using response surface methodology

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Dry sliding wear behaviour of AA6082-T6/SiC/B₄C hybrid metal matrix composites using response surface methodology