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Influence of Graphene Nanoplatelets Addition on Microstructural and Mechanical Properties of Pure Aluminum through Ultrasonic-Assisted Stir Casting Technique
Journal Article
05-15-01-0001
ISSN: 1946-3979, e-ISSN: 1946-3987
Sector:
Topic:
Citation:
Prakash, P., Subbaiah, K., Dodda, R., Murthy, V. et al., "Influence of Graphene Nanoplatelets Addition on Microstructural and Mechanical Properties of Pure Aluminum through Ultrasonic-Assisted Stir Casting Technique," SAE Int. J. Mater. Manf. 15(1):3-12, 2022, https://doi.org/10.4271/05-15-01-0001.
Language:
English
Abstract:
Using an ultrasonic-assisted stir casting method, a pure aluminum (Al) matrix
(99% purity) was mixed with Graphene Nanoplatelets (GNPs) in various proportions
ranging from 0.5 wt.% to 2.0 wt.% to create a Metal Matrix Composite. The
microstructural and mechanical behavior of pure Al-graphene composites were
studied experimentally, and it was discovered that Al with 1.0 wt.% graphene
composite exhibits improved mechanical properties, with a 38.80% increase in
tensile strength and a 56.07% increase in microhardness. Furthermore,
field-emission scanning electron microscope (FESEM) and transmission electron
microscope (TEM) were used to inspect the composites’ exterior morphology, and
fractography of the tensiled composites, as well as X-ray diffraction (XRD)
analysis, was used to observe the materials’ stage changes. According to the
failure review, uniform graphene scattering in the parent matrix combined with
negligible porosity resulted in a substantial improvement in mechanical
properties, making it ideal for aerospace applications.