International Journal of Advances in Scientific Research and Engineering-IJASRE

CORROSION PROPERTIES OF ALUMINUM ALLOY  PARTICULATE REINFORCED METAL MATRIX COMPOSITE

Article Category: Chemical Engineering

DOI:

Pages: 1-5

Author: Santhosh.T.U

Abstract: This study describes   the corrosion characteristics of Al-Cu-Mg alloy-based composites reinforced with various amounts of Titanium reinforced particulates. Corrosion tests were performed on the unreinforced matrix alloy as well as on the various composites in both heat-treated and as-cast conditions. Polarization studies have been carried out in 3.5% NaCl solution using potentiostat model SEP238C.   Increased content of reinforcements in the matrix alloy improves the corrosion resistance of the developed composites.  Al-Cu-Mg matrix alloy has exhibited a corrosion rate of 2.375472 mpy, whereas  Al-Cu-Mg / 8wt % TiO2 has exhibited corrosion rate of 2.26424 mpy. Solution heat treatment at 5250C followed by artificial aging at 1750C was found to improve the corrosion resistance of the specimen tested.

Keyword: Corrosion; Heat treatment; Polarisation; Metal matrix composite.

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