Characterization of SiCp/2024 aluminum alloy composites prepared by mechanical processing in a low energy ball mill

Angers, R.; Krishnadev, M.R.; Tremblay, R.; Corriveau, J.-F.; Dubé, D.

doi:10.1016/s0921-5093(98)01030-2

Cited by 44 publications

(17 citation statements)

References 27 publications

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“…As observed in Fig. 8 The values of tensile properties of 2124/SiC in this work are in the same range as others reported in the literature [26,27].…”

Section: Discussionsupporting

confidence: 89%

Room and high temperature tensile behaviour of a P/M 2124/MoSi2 composite at different heat treatment conditions

Torres

Lieblich

2006

J Mater Sci

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In the present work, a 2124/15vol%MoSi 2 composite was obtained by powder metallurgy. Its microstructure and mechanical properties were investigated at room and at high temperature (up to 200ºC) in conditions T351, T4 and after heat treatments at 495ºC for up to 100 hours. Up to 150ºC, tensile properties of 2124/MoSi 2 in T351 resulted similar to those of a ceramic reinforced 2124/SiC composite. Yield stress of the 2124/MoSi 2 material, after heating at 495ºC for up to 100 hours, resulted higher than that of the monolith 2124 alloy heated for the same periods. No diffusion reaction phases were formed surrounding the MoSi 2 reinforcing particles during such long exposures to high temperature. Only at 100 hours, large plate-like precipitates that contain Al, Cu, Mg and Si appeared. The high thermal stability of this 2124/MoSi 2 composite and its good mechanical properties at room and at elevated temperature makes MoSi 2 intermetallic a competitor of ceramic reinforcements.

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“…As observed in Fig. 8 The values of tensile properties of 2124/SiC in this work are in the same range as others reported in the literature [26,27].…”

Section: Discussionsupporting

confidence: 89%

Room and high temperature tensile behaviour of a P/M 2124/MoSi2 composite at different heat treatment conditions

Torres

Lieblich

2006

J Mater Sci

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“…It has been found that SiC particles can be embedded in soft aluminum matrix to form Al-SiC composite powders during ball milling. [12,[16][17][18] The composite powders in the feedstock would improve the uniform distribution of SiC in the sprayed material. Generally, the feedstock with exclusive composite powders is desirable for plasma spraying of an Al-ceramic powder mixture.…”

Section: A Feedstock Materialsmentioning

confidence: 99%

Influence of spraying conditions on microstructures of Al-SiC p composites by plasma spraying

Gui

Kang

Euh

2005

Metall Mater Trans A

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Air plasma spraying was used to produce Al-SiC p composites as electronic packaging material. Ballmilled Al with 55 and 75 vol. pct SiC powders was repeatedly deposited onto a graphite substrate, and then mechanically removed to get free-standing 100 ϫ 100 mm composite plates of about 2-mm thickness. Different input electrical powers were employed at two spray distances of 100 and 120 mm. The SiC volume fraction and porosity in the sprayed composites were found to be dependent on spray conditions, especially input electrical power. Maximal SiC volume fraction can be obtained at a low input electrical power for the composite sprayed from the Al-55SiC powder and a high input electrical power for Al-75SiC powder. The variation of the SiC level in the composites with spray conditions and SiC size is discussed based on the characteristic of feedstock, the characteristic of deposited surface, and the heat and momentum transfer between particle and plasma flame. Pores in the sprayed composites were found inside one sprayed layer (inner-layer pore) and at the boundary between two sprayed layers (interlayer pore). The formation mechanisms of two types of pores are also explained. X-ray diffraction (XRD) and transmission electron microscopy (TEM) analyses indicate that Si phase is formed in the sprayed composites for most spray conditions. The Si resulted from the decomposition of SiC particles in high-temperature plasma flame.

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“…The remarkable discrepancy of Young's modulus between experimental data and ROM expression indicating that ROM expression is not fitted very well to predict the Young's modulus values of discontinuously reinforced aluminum matrix composites, same results were obtained by other researchers. 18) In order to make the modulus of discontinuously reinforced aluminum matrix composites to be predicted well with models, Halpin-Tsai equation was usually adopted:…”

Section: Mechanical Properties Evaluationmentioning

confidence: 99%

“…The yield strength of composites varied significantly as other research works. 18) The high values of yield strength of composites processed by mechanical alloying and hot extrusion are contributed to the reason as follows: 1) Particle strengthening from boron carbide; 2) Refinement of grains strengthening induced by high energy milling; 3) Orowan strengthening from the oxide and carbide formed during mechanical alloying.…”

Section: Mechanical Properties Evaluationmentioning

confidence: 99%

Production of Boron Carbide Reinforced 2024 Aluminum Matrix Composites by Mechanical Alloying

Nie

Liu

et al. 2007

Mater. Trans.

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Boron carbide particulates reinforced 2024 Aluminum matrix composites were fabricated by mechanical alloying-hot extrusion technology successfully. The morphology and microstructure of B 4 C p /2024Al composite were investigated by optical microscopy (OM), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). A clean interface of B 4 C between aluminum was obtained in this experiment, and matrix alloy revealed the typical microstructure of high energy milling with average grain size about 300 nm. Nanosized oxide and carbide formed after the composites subjected to high energy milling and hot consolidation process. The yield strength and Young's modulus values were improved significantly over the monolithic 2024 alloy.

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Characterization of SiCp/2024 aluminum alloy composites prepared by mechanical processing in a low energy ball mill

Cited by 44 publications

References 27 publications

Room and high temperature tensile behaviour of a P/M 2124/MoSi2 composite at different heat treatment conditions

Room and high temperature tensile behaviour of a P/M 2124/MoSi2 composite at different heat treatment conditions

Influence of spraying conditions on microstructures of Al-SiC p composites by plasma spraying

Production of Boron Carbide Reinforced 2024 Aluminum Matrix Composites by Mechanical Alloying

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