Microstructure and mechanical properties of Al-nano/micro SiC composites produced by stir casting technique

Amouri, K.; Kazemi, Sh.; Momeni, Amir; Kazazi, Mahdi

doi:10.1016/j.msea.2016.08.027

Cited by 106 publications

(26 citation statements)

References 22 publications

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“…However, the strength of the composites is influenced by uniform dispersion of reinforcements in the matrix. The homogeneous dispersion of nano ceramic reinforcements in the matrix is important because it provides an excellent balance between ceramic particles and inter-particle distance, and which extends the yield strength exponentially with good creep resistance [9]. Researchers investigated various lightweight metal matrix composite materials; among them, aluminium based metal matrix composites (AMMCs) materials are efficient due to their good permissible properties for the various industrial and structural applications, particularly for cylinder liners [10].…”

Section: Introductionmentioning

confidence: 99%

Dry sliding wear behaviour of ultrasonically-processed AA6061/SiCp nanocomposites

Reddy¹,

Krishna²,

Rao³

2017

Int. J. Automot. Mech. Eng.

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The present study focused on the wear performance of AA6061/ SiCp (1, 1.5 and 2 wt. %) of nanocomposites at dry sliding condition. The nanocomposite specimens were fabricated through ultrasonic assisted stir casting technique. The wear experiments were conducted under normal atmospheric conditions using a pin-on-disc apparatus. Three different applied normal loads on nanocomposite pin (10 N, 15 N, and 20 N); at various sliding velocities of (1 m/s, 1.5 m/s, and 2 m/s); and at sliding distances of (1000 m, 2000 m, and 3000 m) were considered. The influences of applied normal load on nanocomposite pin, wt. % of SiCp reinforcement particles, sliding velocity, and sliding distance on both friction coefficient and wear loss were studied. The changes of wear loss and friction coefficient with varying applied normal loads, sliding velocities, and sliding distances were plotted. It was observed that the wear loss increased linearly with increasing sliding distance and sliding velocity. This was due to the increase of oxidation layer on the pin surface. The average friction coefficient at sliding velocity 1 m/s for 1 wt. % of SiCp, 1.5 wt. % of SiCp, and 2 wt. % of SiCp reinforced nanocomposites at sliding distance 3000 m, at 20 N normal loads was 0.29, 0.43, and 0.46, respectively. The average friction coefficient at 2 m/s sliding velocity for the same load and sliding distance was 0.26, 0.27, and 0.28, respectively. The increase of SiCp reinforcement in the matrix increased the friction coefficient due to its cubic crystal structure. The increase of sliding velocity and sliding distances reduced the friction coefficient. The worn surfaces of the samples were examined using SEM and EDX analyses. SEM micrograph analysis of the wear surfaces of the nanocomposites exhibited the abrasion wear and oxidative wear with severe plastic deformation. The shallower scratches, circular grooves, and deeper grooves were identified at different conditions on the worn surfaces.

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Section: Introductionmentioning

confidence: 99%

Dry sliding wear behaviour of ultrasonically-processed AA6061/SiCp nanocomposites

Reddy¹,

Krishna²,

Rao³

2017

Int. J. Automot. Mech. Eng.

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“…Kandpal [6], The significant point of this present paper is to create MMC via activated charcoal powder (micron size) as a reinforcement into the metal matrix of titanium carbide to produce intermetallic of TiC in Al-Cu alloy matrix. Amouri et al [7], In this research, using stir casting process the composites of A356-nano SiC (0.5 and 1.5wt%) and A356-5wt% of micro SiC .Moses et al [8], In this study Stir casting was used to produce Al6061/15%TiC (mass fraction) Aluminium matrix composites (AMCs). Ravi et al [9], In this Study Aluminium Matrix Composites (AMCs) are the competent material in the industrial world.…”

Section: Literature Reviewmentioning

confidence: 99%

Microstructure And Mechanical Properties Of Synthesized Aluminium Composite Using Stir Casting Process

Coyal

Yuvraj

Butola

et al. 2019

IJAPIE

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Aluminium is one of the most common metals in the world and its use is increasing day by day in many industries mostly in space industry and automobile industry because of its light weight and high strength capabilities. Aluminium-based alloys have great potential for cost saving application due to their light weight combine with high specific strength and corrosion resistance, as well as good castability. This paper mainly emphasis with the fabrication of Aluminium composites with SiC particles and jute ash particles. Hardness and tensile properties of the prepared Aluminium composite were determined before and after addition of SiC and Jute Ash particulates to find the extent in improvement of properties. SEM images have shown the grain boundaries formation. Results shows that the tensile strength is maximum in case of composite with SiC with value of 123MPA when compared to unreinforced 6061Al matrix with strength of 64MPa.

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“…These methods are classified into three varieties: liquid state methods, solid-state methods, and vapour deposition. Researchers fabricated aluminium/SiC NP -based metal matrix nanocomposites using different methods such as powder metallurgy, 33 mechanical milling 34 and friction stir welding, 35 accumulative roll bonding (ARB), 36 spark plasma sintering, 37 stir casting, 38 squeeze casting, 39 and ultrasonic dispersion process. 40 In the literature, significant work has been carried using powder metallurgy technique and stir casting method.…”

Section: Fabrication Of Sicnp Reinforced Nanocompositesmentioning

confidence: 99%

“…The mechanical properties of the composites depend on the processing temperature and stirring speed. Amouri et al 38 fabricated micron-sized and nano-sized reinforced A356-based composites through stir casting method. The produced samples are heat treated at T6 condition.…”

Section: Fabrication Of Sicnp Reinforced Nanocompositesmentioning

confidence: 99%

Al/SiC_NP and Al/SiC_NP/X nanocomposites fabrication and properties: A review

Reddy

Krishna

Rao

2017

Proceedings of the IMechE

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Global requirement for minimum cost, high efficiency, and good grade materials has made a diversion in research from base alloys to composite materials, since the last five decades. In the case of metal matrix composites, aluminium metal matrix composites have been certified and steadily advanced due to properties such as high strength, low density, and high wear resistance. They are widely used in automobile industry, aircraft industry, structural applications, and many other defence systems. Researchers have observed that the addition of nano-size SiC NP reinforcements to aluminiumbased matrix yields superior properties and good bonding characteristics between matrix and reinforcements of nanocomposites. Along with silicon carbide particulate primary nano-reinforcements, researchers studied the properties of aluminium metal matrix nanocomposites with the addition of secondary reinforcements. These hybrid nanocomposites exhibited improved wear resistance. This article reviews the fabrication methods, mechanical properties, and tribological properties of aluminium-based hybrid metal matrix nanocomposites.

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Microstructure and mechanical properties of Al-nano/micro SiC composites produced by stir casting technique

Cited by 106 publications

References 22 publications

Dry sliding wear behaviour of ultrasonically-processed AA6061/SiCp nanocomposites

Dry sliding wear behaviour of ultrasonically-processed AA6061/SiCp nanocomposites

Microstructure And Mechanical Properties Of Synthesized Aluminium Composite Using Stir Casting Process

Al/SiC_NP and Al/SiC_NP/X nanocomposites fabrication and properties: A review

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Microstructure and mechanical properties of Al-nano/micro SiC composites produced by stir casting technique

Cited by 106 publications

References 22 publications

Dry sliding wear behaviour of ultrasonically-processed AA6061/SiCp nanocomposites

Dry sliding wear behaviour of ultrasonically-processed AA6061/SiCp nanocomposites

Microstructure And Mechanical Properties Of Synthesized Aluminium Composite Using Stir Casting Process

Al/SiCNP and Al/SiCNP/X nanocomposites fabrication and properties: A review

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Al/SiC_NP and Al/SiC_NP/X nanocomposites fabrication and properties: A review