Effect of Additions of Ceramic Nanoparticles and Gas-Dynamic Treatment on Al Casting Alloys

Borodianskiy, Konstantin; Selivorstov, Vadim; Dotsenko, Yuri; Zinigrad, Michael

doi:10.3390/met5042277

Cited by 11 publications

(5 citation statements)

References 19 publications

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“…Usually, light-weight materials reinforced using ceramic particles, such as SiC, Al 2 O 3 , TiB 2 , carbon nanotubes (CNT), and others, are used to produce MMCs [ 8 , 9 , 10 , 11 , 12 , 13 ]. Among these particles, SiC is the most applicable reinforcement for aluminum and magnesium alloys due to its high strength and hardness, low cost, and good compatibility with the metallic matrix.…”

Section: Introductionmentioning

confidence: 99%

Effect of SiC Nanoparticles on AZ31 Magnesium Alloy

2022

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Magnesium alloys are attractive for the production of lightweight parts in modern automobile and aerospace industries due to their advanced properties. Their mechanical properties are usually enhanced by the incorporation with reinforcement particles. In the current study, reinforced AZ31 magnesium alloy was fabricated through the addition of bulk Al and the incorporation of SiC nanoparticles using a stir casting process to obtain AZ31-SiC nanocomposites. Scanning electron microscope (SEM) investigations revealed the formation of Mg17Al12 lamellar intermetallic structures and SiC clusters in the nanocomposites. Energy dispersive spectroscopy (EDS) detected the uniform distribution of SiC nanoparticles in the AZ31-SiC nanocomposites. Enhancements in hardness and yield strength (YS) were detected in the fabricated nanocomposites. This behavior was referred to a joint strengthening mechanisms which showed matrix-reinforcement coefficient of thermal expansion (CTE) and elastic modulus mismatches, Orowan strengthening, and load transfer mechanism. The mechanical properties and wear resistance were gradually increased with an increase in SiC content in the nanocomposite. The maximum values were obtained from nanocomposites containing 1 wt% of SiC (AZ31-1SiC). AZ31-1SiC nanocomposite YS and hardness were improved by 27% and 30%, respectively, compared to AZ31 alloy. This nanocomposite also exhibited the highest wear resistance; its wear mass loss and depth of the worn surface decreased by 26% and 15%, respectively, compared to AZ31 alloy.

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Section: Introductionmentioning

confidence: 99%

Effect of SiC Nanoparticles on AZ31 Magnesium Alloy

2022

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“…Despite the many advantages of aluminum, the low strength significantly limits its potential applications. Many attempts have now been made to improve the mechanical properties of aluminum by creating nanostructured composites with the addition of two-dimensional materials [7][8][9][10][11][12][13][14]. Thus, the improvement of the mechanical properties of these metallic materials is an issue of high scientific interest.…”

Section: Introductionmentioning

confidence: 99%

Surface Heterostructure of Aluminum with Carbon Nanotubes Obtained by Laser-Oriented Deposition

2021

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Al is one of the most widely applicable metallic materials due to its advanced properties. However, its main drawback is its strength, which is relatively low compared to ferrous alloys. This issue may be resolved using different approaches. In the present work, a heterostructure of Al substrate with a modified surface with carbon nanotubes (CNTs) was studied. This heterostructure was obtained using the laser-oriented deposition technique. The obtained results showed a slight reduction in the reflectivity of the obtained Al substrate with embedded CNTs compared to pure Al. Additionally, the obtained surface heterostructure showed enhancement in microhardness and higher hydrophobicity. Simulation of the CNT embedding process revealed that CNT penetration strongly depends on the diameter. Hence, the penetration increases when the diameter decreases.

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“…Since the melting and casting systems must provide the machine with highquality alloy, special attention is paid to the technological issues of alloy production. They, in turn, relate either to a targeted impact on the processes of structure formation [1, 2], or to a complex effect on the melt in the process of its solidification [3,4]. However, issues related to the effect of the time of the proposed technological operations on the probability of equipment downtime are not considered.…”

Section: Research Of Existing Solutions Of the Problemmentioning

confidence: 99%