Strengthening behavior in high content SiC nanowires reinforced Al composite

Yang, Wang; Dong, Ronghua; Yu, Zhenhe; Wu, Ping; Hussain, Murid; Wu, Guanglei

doi:10.1016/j.msea.2015.09.043

Cited by 26 publications

(4 citation statements)

References 27 publications

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“…Due to the low content of Si element in 2024Al matrix, the distribution of Si, mainly in morphology of rod-like structures, could be considered to be equivalent to distribution of SiC nanowires. This is also in agreement with our previous research work [15,17] and literature results [11,14].…”

Section: Resultssupporting

confidence: 94%

“…Jintakosol et al [14] found that the SiC nanowires could increase the wear resistance of the Al matrix composites significantly. Recently, our research group reported that the microstructure and mechanical behavior of SiC nanowires reinforced pure Al and 6061Al matrix composites [15,16,17,18,19,20]. Compared with the carbonaceous materials (CNT, graphene), which easily react with Al matrix to form detrimental Al 4 C 3 phase [3,21,22], SiC nanowires-Al interface demonstrated good interfacial bonding performance without [18,20] or with minimal interfacial products [19].…”

Section: Introductionmentioning

confidence: 99%

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Effect of Extrusion Temperature on the Microstructure and Mechanical Properties of SiCnw/2024Al Composite

Dong

Zhang²,

Zhan³

et al. 2019

Materials

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In the present research work, the effect of extrusion temperature from 480 to 560 °C on the microstructure and mechanical behavior of the SiCnw/2024Al composite (15 vol.%) has been explored. It has been found that extrusion at higher temperature (above 520 °C) was beneficial for the densification of the composite, while the residual average length and alignment of the SiC nanowires were also increased with the extrusion temperature. Moreover, higher extrusion temperature was helpful for the mechanical strength of the SiCnw/2024Al composite, and the peak-aged SiCnw/2024Al composite extruded at 560 °C revealed the highest strength (709.4 MPa) and elastic modulus (109.8 GPa).

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Section: Resultssupporting

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Effect of Extrusion Temperature on the Microstructure and Mechanical Properties of SiCnw/2024Al Composite

Dong

Zhang²,

Zhan³

et al. 2019

Materials

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“…However, the limitations of stir casting are poor distribution, wettability, porosity, interfacial reaction and moderate volume fraction [12]. Generally, pressure infiltration method is an effective technique to fabricate poor-wetting system through forcing infiltration of molten metal alloy into the preform under high pressure, and the main advantages of pressure infiltration method include simplicity in preparation process, high quality (especially high relative density) in composites and no restrictions on the composition of the matrix alloys [19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Electrical Discharge Machining of Al2024-65 vol% SiC Composites

Yang

Chen

et al. 2016

Acta Metall. Sin. (Engl. Lett.)

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In the present work, the wire electrical discharge machining (WEDM) process of the 65 vol% SiCp/2024Al composite prepared by pressure infiltration methods has been investigated. The microstructure of the machined composite was characterized by scanning electron microscope, the average surface roughness (Ra), X-ray diffraction, X-ray photoelectron spectroscopy and transmission electron microscopy (TEM) techniques. Three zones from the surface to the interior (melting zone, heat affected zone and unaffected zone) were found in the machined composites, while the face of SiC particles on the surface toward the outside was ''cut'' to be flat. Increase in Al and Si but decrease in C and O were observed in the core areas of the removed particles. Si phase, which was generated due to the decomposition of SiC, was detected after the WEDM process. The irregular and spherical particles were further observed by TEM. Based on the microstructure observation, it is suggested that the machining mechanism of 65 vol% SiCp/2024Al composite was the combination of the melting of Al matrix and the decomposition of SiC particles.

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“…Our group reported in detail the microstructure and mechanical behavior of SiCnws (diameter distribution 50~800 nm, average diameter ~220 nm) reinforced pure aluminum [ 19 , 20 ], 6061Al [ 21 , 22 , 23 ] and 2024Al [ 24 ] matrix composites. The results show that the interface between SiCnws and Al exhibits good interfacial bonding, and there are no Al 4 C 3 , Al 2 O 3 and MgAl 2 O 4 products at the interface [ 20 , 25 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of Reinforcement Size on Mechanical Behavior of SiC-Nanowires-Reinforced 6061Al Composites

Zhao

Zhao³

et al. 2022

Materials

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In the present study, the effects of SiC nanowires (SiCnws) with diameters of 100 nm, 250 nm and 450 nm on the microstructure and mechanical behavior of 20 vol.% SiCnws/6061Al composites prepared by pressure infiltration were studied. It was found that the interface between SiCnws and Al matrix was well bonded, and no interface product was found. The thicker SiCnws are beneficial to improve the density. In addition, the bamboo-like and bone-like morphologies of SiCnws produce a strong interlocking effect between SiCnws and Al, which helps to improve the strength and plasticity of the material. The tensile strength of the composite prepared by SiCnws with a diameter of 450 nm reached 544 MPa. With a decrease in the diameter of SiCnws, the strengthening effect of SiCnws increases. The yield strength of SiCnws/6061Al composites prepared by 100 nm is 13.4% and 28.5% higher than that of 250 nm and 450 nm, respectively. This shows that, in nano-reinforced composites, the small-size reinforcement has an excellent improvement effect on the properties of the composites. This result has a guiding effect on the subsequent composite structure design.

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Strengthening behavior in high content SiC nanowires reinforced Al composite

Cited by 26 publications

References 27 publications

Effect of Extrusion Temperature on the Microstructure and Mechanical Properties of SiCnw/2024Al Composite

Effect of Extrusion Temperature on the Microstructure and Mechanical Properties of SiCnw/2024Al Composite

Electrical Discharge Machining of Al2024-65 vol% SiC Composites

Effect of Reinforcement Size on Mechanical Behavior of SiC-Nanowires-Reinforced 6061Al Composites

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