Effects of solution aging on mechanical and microstructures properties of Al6092/SiCp/β-eucryptite composites

This paper studied Al6092/SiCp/β-LiAlSiO4 particle-reinforced aluminum matrix composites as the main object. Different solution aging treatment processes were selected to analyze the microstructure and mechanical properties of the specimens. The effects of solution aging on the microstructure, preci...

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Bibliographic Details
Published in:Journal of physics. Conference series 2022-10, Vol.2353 (1), p.012006
Main Authors: Zhang, Shihao, Jiang, Haiyun, Fu, Zhixiang, Hou, Qinglin
Format: Article
Language:English
Subjects:
Aluminum base alloys
Aluminum matrix composites
Chemical precipitation
Deformation resistance
Dislocation density
Eucryptite
Magnesium compounds
Mechanical properties
Metal silicides
Microstructure
Particulate composites
Physics
Plastic deformation
Stiffness
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Summary:This paper studied Al6092/SiCp/β-LiAlSiO4 particle-reinforced aluminum matrix composites as the main object. Different solution aging treatment processes were selected to analyze the microstructure and mechanical properties of the specimens. The effects of solution aging on the microstructure, precipitation phases, and dislocations of the composites were revealed. The results showed that the solution aging treatment improved the stiffness and strength of Al6092/SiCp/β-LiAlSiO4 composites. On the one hand, solution aging promoted the generation of high dislocation density zones and Mg2Si precipitation phases in the samples, which increased the stress required for plastic deformation of the composites. In addition, the high modulus property of micron-sized SiCp can spontaneously carry loads, and the introduction of β-LiAlSiO4 promotes the dispersion of the reinforcing phase. In conclusion, the solution aging treatment and the particle-reinforced phase can jointly improve the deformation resistance of Al6092.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/2353/1/012006