Open AccessInvestigation on mechanical properties of hybrid graphene and beryl reinforced aluminum 7075 composites
Author(s) -
Shanawaz Patil,
Mohamed Haneef,
L.H. Manjunath,
H.N. Reddappa
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/577/1/012112
Subject(s) - materials science , ultimate tensile strength , volume fraction , graphene , composite material , crystallite , composite number , scanning electron microscope , compressive strength , mass fraction , aluminium , compression (physics) , casting , metallurgy , nanotechnology
The emerging technologies and trends of present generation requires downsizing the unwieldy structures to light weight structures on one hand and integration of varied properties on other hand to meet the application demands. In the present investigation an attempt is made to familiarize and best possibilities of reinforcing agent in aluminum 7075 matrix with naturally occurring beryl (Be) and graphene (Gr) to develop a new hybrid composite material. A stir casting process was used to fabricate with fixed volume fraction of 6wt% weight beryl and various volume fractions of 0.5wt%, 1wt%, 1.5wt% and 2wt% of graphene. The properties such as tensile strength, compression strength, and hardness of hybrid composites were examined. The crystallite size and morphology of the graphene and beryl particles were analyzed with X-ray diffraction (XRD) and scanning electron microscopy (SEM) respectively. It was observed that ultimate tensile strength and compression strength of the hybrid composite increased with increasing reinforcement volume fraction as compared to specimen without reinforcement additions.