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Effect of Inhibition by Honey on Corrosion Behavior of Composite Materials from Al-4% Si Alloy Reinforced with Y2O3 Particles

Authors: Hanaa A. Al-Kaisy --- Mervit M. Hanoos
Journal: Engineering and Technology Journal مجلة الهندسة والتكنولوجيا ISSN: 16816900 24120758 Year: 2018 Volume: 36 Issue: 11 Part (A) Engineering Pages: 1208-1212
Publisher: University of Technology الجامعة التكنولوجية

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Abstract

- this work focuses on the preparation specimens of metal matrixcomposite materials exemplified alloy (Al-4%Si) reinforced by yttria particlesY2O3 with different weight percentage (1,2and 3). Effect of yttria particles onpolarization behavior of (Al-4% Si alloy) in sulfuric acid (0.5 M) was studiedby using potentiostat in the presence and the absence of natural honey withdifferent concentration (1and 2gm/L) as inhibitor. The results show that thevalues of tafel slops and corrosion rate (Rmpy) of composite materialsreinforcing with particles of yttria with three percentage decreases withincreasing the concentration of honey, and the efficiency of inhibition (El%) ofcomposite materials in the acidic solution was more than that of base alloyafter adding 2gm/L of inhibitor corrosive medium are (64.79%, 77.49% and88.79%) respectively.

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