Tribological Characterization of Hybrid Metal Matrix Composites Processed by Powder Metallurgy

Megahed, M.; Attia, Mohamed A.; Abdelhameed, Magdy M.; El-Shafei, Ahmed G.

doi:10.1007/s40195-017-0568-5

Cited by 37 publications

(13 citation statements)

References 22 publications

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“…The PM process leaves very less amount of scrap during product manufacturing which enhances the production capability with large variation in the composition. [21][22][23][24] During the PM process, the mixing and blending time of raw material in a ball mill depends upon the amount of powder mixed with ball diameter to powder ratio. Increasing the milling time improves the homogeneity and particles diffusion with the matrix material.…”

Section: Manufacturing Processes Developed For Al-mmcsmentioning

confidence: 99%

“…The sintered component can be used as an end product or may be subjected to further processing as per the necessities. [21][22][23][24] The extent of surface area and particle size is directly in relation to the performance of the MMCs. The strength of nano-reinforced particles in the matrix behaves excellently in various operating environments as reported by several researchers in the time span of material development.…”

Section: Introductionmentioning

confidence: 99%

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Developments in the aluminum metal matrix composites reinforced by micro/nano particles – A review

Bhoi

Singh

Pratap

2019

Journal of Composite Materials

245

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‘The micro/nano reinforced particle’ aluminum metal matrix composites (Al-MMCs) are widely used in manufacturing sector due to light-weight, superior strength-to-weight ratio, better fracture toughness, improved fatigue, and tensile property, enhanced corrosion resistance to harsh environment, etc. This article provides an overview of the manufacturing processes and different reinforcing elements used during the synthesis of Al-MMCs. Generally, the reinforced particles like carbides, nitrides, and compounds of oxides are used. Different organic, inorganic, industrial and agricultural waste which can be used for reinforcement in the aluminum matrix is highlighted with their feasible applications. The common mechanical properties (i.e. hardness, tensile and compressive strength, etc.) reported by different researchers are thoroughly discussed with the aim to highlight the amount of reinforcement and improvement occurred during processing. The formation and methodology for mixing condition and sintering behaviour of Al-MMCs are discussed to impart knowledge about the processing circumstances in powder metallurgical route. The affecting conditions during operating and responsible factor for the tribological behaviour are deliberated in a precise manner to recognize the potentiality of reinforcing particles in Al-MMCs. Finally, the different shortcomings and future prospects of the Al-MMCs are given to encourage the future research directions.

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Section: Manufacturing Processes Developed For Al-mmcsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Developments in the aluminum metal matrix composites reinforced by micro/nano particles – A review

Bhoi

Singh

Pratap

2019

Journal of Composite Materials

245

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“…The alumina had a supporting role. Megahed et al described in [ 19 ] the tribological features of the Al-based composite with hybrid reinforcing by alumina and silicon carbide particulates. This provided an improvement in hardness and wear rate, and the efficiency of SiC was higher compared to Al 2 O 3 .…”

Section: Introductionmentioning

confidence: 99%

On the Microstructure, Strength, Fracture, and Tribological Properties of Iron-Based MMCs with Addition of Mixed Carbide Nanoparticulates

et al. 2020

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In this paper, the features of the strength, fractures, and tribological behavior of metal-matrix composites based on the FeGr1 material are discussed. To improve the material properties, a mixture of SiC, Al2O3 and C nanoparticulates have been added to an iron-based matrix. The simplex lattice design method and hardness, compression, and bending tests were used to determine the mechanical properties. Scanning electron microscopy was applied for fracture features analysis. Different fracture types, mainly trans-crystalline quasi-brittle and brittle fracture or inter-granular fracture and microcracks were registered for the composites tested. Depending on the type and amount of ceramic additives, significant changes in strength, as well as in the fracture features of the metal-matrix composites (MMCs), were observed. Based on tribological tests, changes in the momentary coefficients of friction, temperature of the friction surface, and wear rate of the composites with nanoparticulates were described. An analysis of the worn surface morphology revealed changes in the wear process depending on the MMC composition. It was shown that the use of hybrid mixed additives based on hard ceramic nanoparticulates improved both strength and tribological properties of composites.

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“…At the moment, every form of industry has tried to decrease the product weight and increase the strength. In this pursuit of new materials, aluminum matrix composites (AMCs) fulfill the criteria; ceramic particles are widely used to strengthen AMCs [1,2]. Because of lower cost and good aluminum wettability, SiC and Al2O3 were used frequently as reinforcement stage [3].…”

Section: Introductionmentioning

confidence: 99%

Mechanical and Wear Behaviour of Severe Plastic Deformed Al6063-Nano Al2O3 Composites Processed by Constrained Groove Pressing (CGP)

Adaveesh*,

Kumar T S,

Shekar B

2020

IJRTE

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Metal matrix composites have been developed to meet the demand for lighter materials with high specific strength, stiffness and wear resistance. Particulate reinforced aluminium matrix composites are attractive materials due to their strength, ductility and toughness. The aluminium matrix is strengthened when it is reinforced with hard ceramic phases. Most of the metal matrix compound undergoes severe plastic deformation (SPD). SPD is a method to obtain fine crystalline structure in different bulk metals and alloys which possess different crystalline structure. The objective of the present work is to synthesize Al-6063 alloy by stir casting method and varying weight percentage of nano Al2O3 in steps of 2, 4, and 6 wt %. The composites are prepared using the process of compressed groove pressing (CGP) with extreme plastic deformation. The composite is characterized for mechanical and wear behaviour. SEM microphotographs confirmed the distribution of nano Al2O3 particles in the Al6063 Matrix alloy. In addition, SEM micrographs of Al6063 alloy with nano Al2O3 after constrained groove pressing shown grain refinement. Improvements in Hardness, UTS, yield strength, bending strength, percentage elongation and wear resistance of the Al-6063 matrix are obtained with the addition of Al2O3 particulates and also the properties are further enhanced with CGP. The developed metal matrix nano composite may be an alternative material for manufacturing of bearings.

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Tribological Characterization of Hybrid Metal Matrix Composites Processed by Powder Metallurgy

Cited by 37 publications

References 22 publications

Developments in the aluminum metal matrix composites reinforced by micro/nano particles – A review

Developments in the aluminum metal matrix composites reinforced by micro/nano particles – A review

On the Microstructure, Strength, Fracture, and Tribological Properties of Iron-Based MMCs with Addition of Mixed Carbide Nanoparticulates

Mechanical and Wear Behaviour of Severe Plastic Deformed Al6063-Nano Al2O3 Composites Processed by Constrained Groove Pressing (CGP)

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