Microstructure and Lattice Parameters of AlN Particle-Reinforced Magnesium Matrix Composites Fabricated by Powder Metallurgy

Chen, Jie; Bao, Chao; Wang, Yong; Liu, Jinling; Suryanarayana, C.

doi:10.1007/s40195-015-0333-6

Cited by 24 publications

(8 citation statements)

References 29 publications

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“…They obtained Stress strain curves and MMC with higher content was found tougher than others. Chen et al [6] in their experimental study used AlN particles used as reinforcement in magnesium matrix and…”

Section: Metal Matrix Composites and Powder Metallurgymentioning

confidence: 99%

Properties of 12% reinforced Aluminium Based Metal Matrix Composites

Patel*,

Bagga,

Sankhla

2020

IJRTE

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It is always endeavor of ongoing research in material science to take advantage of specific or particular properties of the constituent material present in a composite material. Aluminum based metal matrix composites have been developed to tailor the properties. Aluminum is a preferred choice for metal matrix composites (MMC) for several reasons like low density, high thermal and electrical conductivity and good damping capacity. Al-MMCs exhibit improved mechanical properties, when reinforced by ceramics like Al2O3 and SiC. This paper presents an experimental study to produce Al-MMC by powder metallurgy process in which fine aluminum powder reinforced by ceramic particles like SiC and Al2O3 by 12% of its total weight. The green compact is produced using a set of die and punch and necessary compaction of blended powder is obtained using a mounting press. Sintering of green compact is carried out at temperature of 95% of melting point of matrix material for 1 hour. The study of density, hardness, compressive strength and dry sliding wear capability of fabricated MMC is attempted. The average hardness of MMC is found to be increased 2-3 times as compared to pure commercial aluminium with deviation of 11% in the density obtained experimentally.

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Section: Metal Matrix Composites and Powder Metallurgymentioning

confidence: 99%

Properties of 12% reinforced Aluminium Based Metal Matrix Composites

Patel*,

Bagga,

Sankhla

2020

IJRTE

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“…In our investigations, during the past few years, we have successfully achieved a very uniform distribution of the reinforcement phases in different types of matrices through the solid-state powder processing technique of MA [36][37][38][39][40][41][42][43][44]. These include homogeneous dispersion of lead in Al and Al-Cu alloys [36], graphite in an Al-6061 alloy matrix [37], effect of clustering of the reinforcement on the mechanical properties of the composites [38], dispersion of a high volume fraction of Al 2 O 3 in Al [20] and Mg [39], SiC in Al [40], AlN in Mg [41], Ti 5 Si 3 in g-TiAl [42,43], and synthesis of MoSi 2 + Si 3 N 4 composites for high temperature applications [44]. However, in this article, we will describe our new results obtained in two systems.…”

Section: Nanocompositesmentioning

confidence: 99%

Mechanical Alloying of Nanocrystalline Materials and Nanocomposites

Suryanarayana¹

2019

Madridge J Nanotechnol Nanosci

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Mechanical alloying is an effective method to synthesize nanocrystalline metal powders in the monolithic and composite states. The process involves repeated cold welding, fracturing and rewelding of powder particles in a high energy ball mill. Although originally developed to produce oxide dispersion strengthened superalloys, the technique has been later shown to be capable of producing a variety of metastable phases including nanocrystalline materials. The present article describes the synthesis of nanocrystalline materials and nanocomposites by mechanical alloying. The basic principles of the process, process parameters that affect the constitution and microstructure of the processed powders, and the mechanisms of alloying and grain refinement, including their consolidation to full density while retaining the nanostructures, are described. Methods to achieve the smallest possible grain size are then highlighted. Typical examples of the synthesis of nanocomposites containing a high volume fraction of nanometer-sized reinforcements in aluminum, and process optimization to achieve superplastic behavior in titanium-based nanocomposites are then discussed. The ubiquitous problem of powder contamination during milling and solutions to eliminate or minimize this are also mentioned.

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“…One of the peculiarities presented by AlN particles is its lattice parameter which is similar to the one presented by pure magnesium. This feature makes this particle a potential grain refiner for magnesium matrices [6].…”

Section: Introductionmentioning

confidence: 99%

Reinforcement of magnesium Elektron 21 with aluminium nitride (AlN) nanoparticles dispersed using a travelling magnetic field

Garrido

Davoust

Daudin

et al. 2020

Metall. Res. Technol.

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Magnesium alloy Elektron 21 is commonly used in aerospace structural parts in which good creep resistance and lightness are required. This alloy maintains good mechanical properties at temperatures as high as 200 °C. One mechanism with high potential for improving mechanical properties of magnesium alloys at a high temperature is dispersion-strengthening based on nanoparticles. In this paper, we analyse the properties of magnesium Elektron 21 samples solidified with nanoparticles of aluminium nitride dispersed by an electromagnetic stirring provided from a travelling magnetic field. X-ray tomography and X-ray spectrometry as well as compression tests at several temperatures (350, 400 and 450 °C) are carried out on samples containing the nanoparticles. The present study extends the knowledge on the processing by alternative techniques and on the enhancement of creep behaviour at higher temperatures for such metal matrix composites compared to previous studies.

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Microstructure and Lattice Parameters of AlN Particle-Reinforced Magnesium Matrix Composites Fabricated by Powder Metallurgy

Cited by 24 publications

References 29 publications

Properties of 12% reinforced Aluminium Based Metal Matrix Composites

Properties of 12% reinforced Aluminium Based Metal Matrix Composites

Mechanical Alloying of Nanocrystalline Materials and Nanocomposites

Reinforcement of magnesium Elektron 21 with aluminium nitride (AlN) nanoparticles dispersed using a travelling magnetic field

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