Manufacturing of cast A356 matrix composite reinforced with nano- to micrometer-sized SiC particles

Mousavian, R. Taherzadeh; Khosroshahi, R. Azari; Yazdani, S.; Brabazon, Dermot

doi:10.1007/s12598-015-0689-9

Cited by 28 publications

(11 citation statements)

References 29 publications

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“…Aluminium alloys have been gaining greater attention as the matrix of MMCs due to their unique physical and mechanical properties [5][6][7][8][9]. Much research has been conducted to improve the structural and mechanical properties of the aluminium matrix nano composites (AMNCs) by the addition of submicron and nano-sized particles as reinforcement [10][11][12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Enhanced mechanical properties of in situ aluminium matrix composites reinforced by alumina nanoparticles

Afkham

Khosroshahi

Rahimpour

et al. 2018

Archives of Civil and Mechanical Engineering

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In-situ fabrication of metal matrix nano composites has various advantages such as the formation of clean particle-metal interface with strong bonding. In this study, three types of metal oxides powders (commercial TiO2, commercial ZnO, and recycled Pyrex) were used to inject into the pure aluminium melt to fabricate in-situ aluminium matrix nano composites via liquid-state stir casting at 850 °C followed by a hot rolling process. SEM and FESEM microstructural characterizations, as well as EDAX analysis, were used to show if in-situ reactions occurred between molten aluminium and metal oxides to form nano alumina particles as the reinforcement. Tensile and microhardness tests were also applied on the rolled nano composites to identify the effect of metal oxide type and amount on the mechanical properties. It was found that using recycled Pyrex crushed powders led to the formation of a uniform distribution of alumina nanoparticles, while fine-micron ZnO and especially TiO2 powders could not be uniformly distributed into the melt for complete reaction occurrence.

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Section: Introductionmentioning

confidence: 99%

Enhanced mechanical properties of in situ aluminium matrix composites reinforced by alumina nanoparticles

Afkham

Khosroshahi

Rahimpour

et al. 2018

Archives of Civil and Mechanical Engineering

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“…Stirring was stopped after 6 minutes of stirring in semi-solid condition, and the melt temperature was increased to 680 °C with a heating rate of 25 °C/min. It was observed previously [26,59] that the semi-solid condition is not enough for the required interaction of Ti and Ni with the melt such that a suitable releasing of the NPs did not occur. Therefore, the melt was stirred at 680 °C for an extra 2 minutes after 6 minutes stirring at the semi-solid state for a higher release of the NPs.…”

Section: Preparation Of the Bulk Compositementioning

confidence: 99%

Strength-ductility trade-off via SiC nanoparticle dispersion in A356 aluminium matrix

Mousavian

Behnamfard

Khosroshahi

et al. 2020

Materials Science and Engineering: A

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A process was developed to disperse β-SiC nanoparticles (NPs), with a high propensity to agglomerate, within a matrix of A356 aluminum alloy. A suitable dispersion of 1 wt.% SiC NPs in the A356 matrix was obtained through a hybrid process including a solid-state modification on the surface of the NPs, a two-step stirring process in the semi-solid and then the liquid-state, and a final hot-rolling process for fragmentation of the brittle eutectic silicon phase and porosity elimination. Titanium and nickel where used as the nanoparticle SiC surface modifiers. Both modifiers were found to improve the mechanical properties of the resulting material, however, the highest improvement was found from the nickel surface modification. For the nickel modification, compared to the non-reinforced rolled alloy, more than a 77 %, 85 %, and 70 % increase in ultimate tensile strength (UTS), yield strength (YS), and strain % at the break, respectively were found with respect to the unreinforced rolled A356. For the rolled nanocomposite containing 1 wt. % SiCnp and nickel modification, an average YS, UTS, and strain % at the break of 277MPa, 380 MPa, and 16.4% were obtained, respectively, which are unique and considerable property improvements for A356 alloy.

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“…Secondary processing, like extrusion of discontinuously reinforced composites, can lead to the break-up of particle agglomerates. Deformation of the material in the process of extrusion also reduced porosity [22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Effect of stir casting parameters on particle distribution, microstructure, and properties of metal matrix composite using alumina master alloy

Nagy¹,

Nosko²,

Iždinský³

et al. 2021

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Manufacturing of cast A356 matrix composite reinforced with nano- to micrometer-sized SiC particles

Cited by 28 publications

References 29 publications

Enhanced mechanical properties of in situ aluminium matrix composites reinforced by alumina nanoparticles

Enhanced mechanical properties of in situ aluminium matrix composites reinforced by alumina nanoparticles

Strength-ductility trade-off via SiC nanoparticle dispersion in A356 aluminium matrix

Effect of stir casting parameters on particle distribution, microstructure, and properties of metal matrix composite using alumina master alloy

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