Particulate reinforced metal matrix composites — a review

Ibrahim, I. A.; Mohamed, Farghalli A.; Lavernia, Enrique J.

doi:10.1007/bf00544448

Cited by 1,659 publications

(636 citation statements)

References 65 publications

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“…[19] The agreement in modulus for cryomilled and conventional AA5083 shows that there is no significant dependence of elastic modulus on grain size or due to the incorporation of dispersoids from cryomilling, which is consistent with previous studies. [20,21] The increase in modulus in the composite materials (Samples 1 and 2) relative to the unreinforced material (Sample 3) is expected. However, further consideration is required to explain the difference between Samples 1 and 2.…”

Section: Discussionmentioning

confidence: 89%

“…This is not surprising as continuous fiber-reinforced composites generally show higher stiffness than short fiber-reinforced composites with similar volume fractions of reinforcement. [21] It is worth stating that the elastic modulus can be simply defined by the amount of strain energy stored per unit volume within the material under an applied stress (or strain), which can be expressed as U / re = Ee 2 , by Hook's Law. In an ideal two-component system, the interface has perfect bonding in the sense that any elastic strain along the interface is identical both within the reinforcement phase and the metal matrix: or e R = e M .…”

Section: ½7mentioning

confidence: 99%

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Reinforcement Size Dependence of Load Bearing Capacity in Ultrafine-Grained Metal Matrix Composites

Yang

Balog

Krížik

et al. 2017

Metall Mater Trans A

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The length-scale effects on the load bearing capacity of reinforcement particles in an ultrafine-grained metal matrix composite (MMC) were studied, paying particular attention to the nanoscale effects. We observed that the nanoparticles provide the MMCs with a higher strength but a lower stiffness compared to equivalent materials reinforced with submicron particles. The reduction in stiffness is attributed to ineffective load transfer of the local stresses to the small and equiaxed nanoparticles.

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Section: Discussionmentioning

confidence: 89%

Section: ½7mentioning

confidence: 99%

Reinforcement Size Dependence of Load Bearing Capacity in Ultrafine-Grained Metal Matrix Composites

Yang

Balog

Krížik

et al. 2017

Metall Mater Trans A

View full text Add to dashboard Cite

show abstract

“…These are commonly produced dispersed composites. Ex-situ composites are most frequently manufactured by the method of mechanical mixing with simultaneous addition of ceramic particles into molten metal or by molten metal infiltration into a densely-packed layer of particles or fibres [2,3]. As a result, a non-continuous strengthening ceramic phase dispersed in the homogenous matrix of the metal is obtained.…”

Section: Introductionmentioning

confidence: 99%

“…These are usually materials which have a matrix of light alloys, containing particles of Al2O3, SiC or SiO2, most frequently applied in the automotive or aircraft industry [2,21]. There are also ongoing works aimed at obtaining composites with an aluminium alloy matrix through molten metal infiltration of preforms in the form of ceramic alumina foams [22].…”

Section: Introductionmentioning

confidence: 99%

Preliminary Tests of Cellular SiC/Iron Alloy Composite Produced by a Pressureless Infiltration Technique

Lipowska

Psiuk

Cholewa

et al. 2017

Archives of Foundry Engineering

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Preliminary tests aimed at obtaining a cellular SiC/iron alloy composite with a spatial structure of mutually intersecting skeletons, using a porous ceramic preform have been conducted. The possibility of obtaining such a composite joint using a SiC material with an oxynitride bonding and grey cast iron with flake graphite has been confirmed. Porous ceramic preforms were made by pouring the gelling ceramic suspension over a foamed polymer base which was next fired. The obtained samples of materials were subjected to macroscopic and microscopic observations as well as investigations into the chemical composition in microareas. It was found that the minimum width of a channel in the preform, which in the case of pressureless infiltration enables molten cast iron penetration, ranges from 0.10 to 0.17 mm. It was also found that the ceramic material applied was characterized by good metal wettability. The ceramics/metal contact area always has a transition zone (when the channel width is big enough), where mixing of the components of both composite elements takes place.

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“…In the present investigation aluminium (commercially pure having an assay of >99% of Aluminium) and Al2O3 particulates have been used for the MMC fabrication. [5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Untitled

2016

IJESET

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Aluminium alloys are widely used in aerospace and automobiles industries due to their low density, corrosion resistance, low thermal coefficient of expansion as compared to conventional metals but its low strength and low melting point were always a problem. An effective method of solving these problems is to use a reinforced element as Al2O3 particles. The high-strength, low density aluminium alloy-based composites with alumina reinforcement have generated significant interest in the industries where strength to weight ratio is the primary concern. Present work is to study the behaviour of pure aluminium powder reinforced with Al2O3 which is produced by the powder metallurgy technique by varying the percentages of alumina by weight. The fabricated composite samples were trimmed according to the ASTM standards for different experiments and its characterization is performed. Finally the research work deals with fabrication of Al/Al2O3 composite for automotive applications to replace the existing aluminium alloys

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Particulate reinforced metal matrix composites — a review

Cited by 1,659 publications

References 65 publications

Reinforcement Size Dependence of Load Bearing Capacity in Ultrafine-Grained Metal Matrix Composites

Reinforcement Size Dependence of Load Bearing Capacity in Ultrafine-Grained Metal Matrix Composites

Preliminary Tests of Cellular SiC/Iron Alloy Composite Produced by a Pressureless Infiltration Technique

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