Aluminum based composites are generally used to build marine structures and liquid cargo containers because of its high strength and low weight. In the present investigation, the corrosion behaviour of B₄C particle reinforced Al-6061 alloy has been studied. The aluminumboron carbide composite were prepared using stir casting method by varying percentage of reinforcement from 6 to 12% in steps of 2%. Salt spray method was adopted to investigate the corrosion behaviour of the composite. The test was conducted for a period of 240 hours and for every 48 hours the weight loss of the specimens was measured. The extent of corrosion was measured by using weight loss method. The results showed that the corrosion resistance of the composite decreases with the increase in the percentage of boron carbide particulates. The optical microscope was used to analyze the corroded surfaces and corrosion mechanism. The pit initiation side tends to the possibility of the accuracy corrosion on the interface between the hard reinforced particles and matrix alloy.

Developing a biodegradable polymer composite by using chitosan as matrix and natural fiber as reinforcement plays a vital role in order to increase mechanical properties. Chitosan has been exploited for its mucoadhesvie property which has tremendous biomedical applications in order to explore the mechanical and thermal capability. This study initialized with manufacturing of chitosan-based composite with three different natural fibers namely banana, coir, and sisal. The results of the incorporation of natural fibers with chitosan on the strength of composite blends were investigated. Further the prepared sample undergone Thermo gravimetric analysis and peel test to evaluate their thermal stability and adhesive property. The results indicate that the chitosan improves the thermal property of composites, whereas the increasing percentage of chitosan in peel test sample gets saturated hence the adhesive property gets deteriorate.