This content is not included in your SAE MOBILUS subscription, or you are not logged in.

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
Published July 06, 2021 by SAE International in United States
Influence of Graphene Nanoplatelets Addition on Microstructural and Mechanical Properties of Pure Aluminum through Ultrasonic-Assisted Stir Casting Technique
Sector:
Citation: null
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.