World Journal of Engineering Research and Technology

N. Basavaraj, Bylappa B. K., Dr. H. K. Shivanand*, Ravikumara S. Biradara, Nagabhushan V.

ABSTRACT

Composite materials are manufactured from two or more materials to take advantage of desirable characteristics of the components. A composite material, in mechanics sense, is a structure with the ingredients as element transferring forces to adjacent members. The advance in design and application of composites has accelerated in the past decade especially in the aeronautics, defense and space industries. Commercial applications are also increasing as products needing challenging materials properties are increasing in demand. The majority of the composite material uses two constituents: a binder or a matrix and reinforcement. The reinforcement is stronger and stiffer, forming a sort of backbone, while the matrix keeps the reinforcement in a set place. The binder also protects the reinforcement, which may be brittle or breakable, as in the case of long glass fibers used as a conjunction with plastic to make fiber glass. Generally, composite materials have excellent corrosive resistance making them versatile in wide range of situations. In this work the specimens are fabricated using CNT and glass fiber with Aluminium7075 with the help of stir casting method. Corrosion specimens as per ASTM standards are prepared with different composition of carbon nano tubes and glass fiber. Furthermore, corrosion characteristics of composite specimens consisting of different compositions in acidic medium are studied. For all compositions of the specimen, the corrosion rates of the specimen are recorded for different normality?s using weight loss method. The composite specimens showed better corrosion /pitting resistance than the unre-enforced matrix alloy, also it is seen that corrosion rate increase with increase in normality of the solution.

[Full Text Article] [Download Certificate]