Study on bulk aluminum matrix nano-composite fabricated by ultrasonic dispersion of nano-sized SiC particles in molten aluminum alloy

Yang, Yong; Lan, Jie; Li, Xiaochun

doi:10.1016/j.msea.2004.03.073

Cited by 591 publications

(260 citation statements)

References 17 publications

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“…% and 3 wt. %) are improved synchronously which is quite rare for the composites reinforced with ceramic particles, because in most reported works [11,14,20,21], the composites had a higher strength and lower ductility than the matrix alloy. The yield strength (σ 0.2 ), ultimate tensile strength (UTS) and fracture strain (ε) of the nano-sized SiC p /Al-Cu composites firstly increase and then decrease with the increase in the content of SiC p .…”

Section: Resultsmentioning

confidence: 99%

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Microstructures and Tensile Properties of Al–Cu Matrix Composites Reinforced with Nano-Sized SiCp Fabricated by Semisolid Stirring Process

Qiu

Gao

Tang

et al. 2017

Metals

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Abstract:The nano-sized SiC p /Al-Cu composites were successfully fabricated by combining semisolid stirring with ball milling technology. Microstructures were examined by an olympus optical microscope (OM), field emission scanning electron microscope (FESEM) and transmission electron microscope (TEM). Tensile properties were studied at room temperature. The results show that the α-Al dendrites of the composites were strongly refined, especially in the composite with 3 wt. % nano-sized SiC p , of which the morphology of the α-Al changes from 200 µm dendritic crystal to 90 µm much finer equiaxial grain. The strength and ductility of the composites are improved synchronously with the addition of nano-sized SiC p particles. The as-cast 3 wt. % nano-sized SiC p /Al-Cu composite displays the best tensile properties, i.e., the yield strength, ultimate tensile strength (UTS) and fracture strain increase from 175 MPa, 310 MPa and 4.1% of the as-cast Al-Cu alloy to 220 MPa, 410 MPa and 6.3%, respectively. The significant improvement in the tensile properties of the composites is mainly due to the refinement of the α-Al dendrites, nano-sized SiC p strengthening, and good interface combination between the SiC p and Al-Cu alloys.

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Section: Resultsmentioning

confidence: 99%

“…Al-Si and Al-Mg alloys are the usually used matrix phase in nano-sized SiC p /Al composites [10,16,20,21]. Xiong et al [10] fabricated 14 vol.…”

Section: Introductionmentioning

confidence: 99%

Microstructures and Tensile Properties of Al–Cu Matrix Composites Reinforced with Nano-Sized SiCp Fabricated by Semisolid Stirring Process

Qiu

Gao

Tang

et al. 2017

Metals

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“…At the same time, the production of bulk ingots of the composite materials by casting is associated with a number of problems caused by the agglomeration and flotation of particles. This phenomenon is observed due to poor melt wettability of the reinforcing particles [5]. As a result, a reduced density is observed in composites due to the residual porosity, decreasing their mechanical characteristics [6].…”

Section: Introductionmentioning

confidence: 99%

“…As a result, a reduced density is observed in composites due to the residual porosity, decreasing their mechanical characteristics [6]. There are several solutions to the problem: applying coatings on the particles that increase wettability, using master alloys, and/or imposing external fields on the metallic melt [3][4][5][6][7]. In this study, a specially prepared master alloy as well as ultrasonic treatment of the melt was used.…”

Section: Introductionmentioning

confidence: 99%

Influence of Combined Helical and Pass Rolling on Structure and Residual Porosity of an AA6082-0.2 wt % Al2O3 Composite Produced by Casting with Ultrasonic Processing

Naydenkin

Мишин

Khrustalyov

et al. 2017

Metals

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Abstract:The influence of combined (helical and pass) rolling on the structure, residual porosity, and microhardness of an AA6082-0.2 wt % Al 2 O 3 composite produced by casting with ultrasonic processing was evaluated in comparison with the matrix alloy. The nanosized alumina particles resulted in a more homogeneous and fine-grained structure of the composite after deformation with higher microhardness in comparison with the matrix alloy. However, the residual porosity of the AA6082-0.2 wt % Al 2 O 3 composite was retained even after combined rolling on the level typical of alloys produced by the method, which may be a result of relatively low stresses and strains introduced during deformation.

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“…However, the ductility of the MMCs deteriorates with high ceramic particle concentration [1]. Recently, it is of interest to use nano-sized ceramic particles to strengthen the metal matrix, so-called metal matrix nano-composite (MMNC), while maintaining good ductility [6,7]. With nanoparticulates reinforcement, especially high temperature creep resistance and better fatigue life could be achieved.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Behaviour of Cast A356/Al<sub>2</sub>O<sub>3</sub> Aluminum Metal Matrix Nanocomposites

E.Y.El-Kady¹,

Mahmoud²,

El-Betar³

et al. 2012

MSA

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The present work includes the study of the dynamic properties of the nanocomposites specimens. The dynamic properties of A356/Al 2 O 3 nanocomposites were investigated through different fabrication conditions. The A356/Al 2 O 3 nanocomposites specimens were fabricated using a combination between the rheocasting and squeeze casting routes. The composites were reinforced with Al 2 O 3 particulates of 60 and 200 nm and different volume fractions up to 5 vol%. The dynamic properties of the A356/Al 2 O 3 nanocomposites were investigated through measuring the dynamic properties of specimens. Free vibration method is used to measure frequency response (f n ), and damping factor (ξ). The viscoelastic properties such as loss factor η, storage modulus (E'), and loss modulus (E") were obtained. The results concluded that, the dynamic properties of nanocomposites were improved by increasing the volume fractions of nanoparticulates and decreasing the nanoparticulates size. The results indicated also that, the damping factor, and the related parameters (η, E' and E") was strongly affected by increasing both volume fraction and the particulates.

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Study on bulk aluminum matrix nano-composite fabricated by ultrasonic dispersion of nano-sized SiC particles in molten aluminum alloy

Cited by 591 publications

References 17 publications

Microstructures and Tensile Properties of Al–Cu Matrix Composites Reinforced with Nano-Sized SiCp Fabricated by Semisolid Stirring Process

Microstructures and Tensile Properties of Al–Cu Matrix Composites Reinforced with Nano-Sized SiCp Fabricated by Semisolid Stirring Process

Influence of Combined Helical and Pass Rolling on Structure and Residual Porosity of an AA6082-0.2 wt % Al2O3 Composite Produced by Casting with Ultrasonic Processing

Dynamic Behaviour of Cast A356/Al<sub>2</sub>O<sub>3</sub> Aluminum Metal Matrix Nanocomposites

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Study on bulk aluminum matrix nano-composite fabricated by ultrasonic dispersion of nano-sized SiC particles in molten aluminum alloy

Cited by 591 publications

References 17 publications

Microstructures and Tensile Properties of Al–Cu Matrix Composites Reinforced with Nano-Sized SiCp Fabricated by Semisolid Stirring Process

Microstructures and Tensile Properties of Al–Cu Matrix Composites Reinforced with Nano-Sized SiCp Fabricated by Semisolid Stirring Process

Influence of Combined Helical and Pass Rolling on Structure and Residual Porosity of an AA6082-0.2 wt % Al2O3 Composite Produced by Casting with Ultrasonic Processing

Dynamic Behaviour of Cast A356/Al&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;3&lt;/sub&gt; Aluminum Metal Matrix Nanocomposites

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Dynamic Behaviour of Cast A356/Al<sub>2</sub>O<sub>3</sub> Aluminum Metal Matrix Nanocomposites