Corrosion and Wear Properties of Aluminium AA7075 Reinforced Chitosan
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Abstract
Description
This study explores the mechanical behaviours of AA7075/chitosan
composite at a mesh size of 90μm formed through percentage range of 3, 6, 9, and
12 wt. % by stir casting method. SEM revealed existence of grain at the borderline
of the matrix as increased in reinforcing agent resulted to evenly dispersal of fibre
links in the micrograph. XRD analysis showed existence of Hydroxyapatite,
Ca10(PO4)6(OH)2, as seen by many high-intensity peaks in the diffract gram of the
dominant crystal. The wear rate of the samples is seen to be increasing from the
control, peaking at 1.78 % at AA7075+9 wt. % chitosan before dropping by
0.04 % at AA7075+12 wt. % chitosan. The corrosion study revealed that
AA7075+9 wt. % chitosan exhibits minimal corrosion rate in comparison to other
matrixes. The findings shows that chitosan-reinforced AMMC can be produced
using a cost-effective stir casting process while still meeting design requirements
for use in electrical cables due to improved mechanical strength and electrical
conductivity, as well as lightweight household utensils due to chitosan's
antibacterial properties.
Keywords
TJ Mechanical engineering and machinery