Mechanical and electrochemical behaviors assessments of Aluminum- Graphene Oxide composites fabricated by mechanical milling and repetitive upsetting extrusion
Keywords:Al matrix, Graphene oxide, Composites, Mechanical properties, Hardness, Repetitive upsetting extrusion
This study is aimed to fabricate the Aluminium-graphene oxide (Al-GO) composites with different concentration of GO (0.5, 1, and 2 wt. %) at 300 °C using repetitive upsetting extrusion (RUE) technique. Uniform dispersion of GO nanoplates throughout the matrix was obtained by sequence processes including the ultrasonicating, ball milling and RUE. The microstructure of composites was investigated by X-ray diffraction, scanning electron microscope and Raman analysis. The results confirmed that the Al-1GO illustrated the uniform and homogenous dispersion of GO into the Al matrix. Raman results confirm the absence of aluminum carbide phase formation during the RUE process. The mechanical properties results show the greater hardness, compressive strength and yield strength of Al-1GO than other ones. This 500% enhancement of Al-1GO in mechanical behavior may be related to desired dispersion of GO throughout the matrix. Current density of the Al matrix corrosion significantly increased from 2.65 to 15.21 (µA/cm2), when the amount of GO increased from 0 to 2 wt. % due to galvanic corrosion at the presence of the GO reinforcement.
How to Cite
Copyright (c) 2021 JCC Research Group
This work is licensed under a Creative Commons Attribution 4.0 International License.
Authors will be asked, upon acceptance of an article, to transfer copyright of the article to the Publisher. This will ensure the widest possible dissemination of information under copyright laws.
The submitted materials may be considered for inclusion but can not be returned.
As an author you (or your employer or institution) have certain rights to reuse your work.