Integrated Study of Al-MMC Reinforced with SiC and TiO2: Advancements in Mechanical Properties, SEM Analysis, and Structural Suitability for Wind Turbine Applications

In this study, aluminum-based metal matrix composites (MMCs) were fabricated with varying compositions of SiC and TiO 2 reinforcements using the stir casting method. Three different compositions were examined: 98% Al6061 alloy, 1% SiC, and 1% TiO 2 ; 96% Al 6061 alloy, 2% SiC, and 2% TiO 2 ; and 94%...

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Bibliographic Details
Published in:Journal of machinery manufacture and reliability 2024-08, Vol.53 (4), p.397-416
Main Authors: Ravichandaran, R., Mahesh, G., Bejaxhin, A. Bovas Herbert, Ramanan, N.
Format: Article
Language:English
Subjects:
Aluminum base alloys
Aluminum matrix composites
Composition
Corrosion fatigue
Corrosion resistance
Diagnostics
Engineering
Experimental Mechanics
Fatigue strength
Flexural strength
Hardness
Impact analysis
Impact strength
Machines
Manufacturing
Mechanical properties
Metal fatigue
Metal matrix composites
Processes
Scanning electron microscopy
Tensile tests
Testing
Titanium dioxide
Ultimate tensile strength
Wind resistance
Wind turbines
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Summary:In this study, aluminum-based metal matrix composites (MMCs) were fabricated with varying compositions of SiC and TiO 2 reinforcements using the stir casting method. Three different compositions were examined: 98% Al6061 alloy, 1% SiC, and 1% TiO 2 ; 96% Al 6061 alloy, 2% SiC, and 2% TiO 2 ; and 94% Al alloy, 3% SiC, and 3% TiO 2 . These MMCs were evaluated for their mechanical behavior and microstructure in terms of tensile, flexural, and impact strength. Scanning electron microscopy (SEM) analysis revealed a uniform distribution of reinforcements, while also indicating an uneven dispersion of SiC particles within the Al matrix. Tensile testing displayed an ultimate strength of 160.06 MPa, an elongation of 6.63%, and a hardness of 96.5 for the sample with the composition of 94% Al, 3% SiC, and 3% TiO 2 . For the composition of 96% Al alloy, 2% SiC, and 2% TiO 2 , the highest flexural strength of 6.57 kN, notable impact strength of 6 J, and a hardness value of 93.68 were achieved. Atomic force microscopy (AFM) was employed to analyze surface morphology. These results demonstrate the potential of these MMCs for practical applications due to their improved properties compared to commercially available composites. The study highlights the tailored mechanical attributes of metal matrix composites, showcasing their strength, stiffness, fatigue resistance, and corrosion resistance. Such systematic analyses aid in the development of more efficient and dependable structures for wind turbine applications.
ISSN:1052-6188
1934-9394
DOI:10.1134/S1052618824700304