Open AccessSilicon Nitride-based Ceramic Material as a Reinforcement with Corrosion Resistance Properties in High Grade Aluminium (AA8011) Metal Matrix Composites
Author(s) -
J. Fayomi,
A. P. I. Popoola,
O.S.I. Fayomi
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1378/4/042054
Subject(s) - materials science , scanning electron microscope , corrosion , ceramic , composite material , aluminium , alloy , silicon nitride , pitting corrosion , reinforcement , metallurgy , nitride , silicon , layer (electronics)
The impact of silicon nitride particulates as a ceramic reinforcement material on the corrosion mitigation of AA8011 in 0.5 M H 2 SO 4 was Experimented with potentiodynamic polarization technique, and the microstructural evolution was keenly observed with TESCAN scanning electron microscope (SEM). The findings from the research show the enhancement in the corrosion performance of the developed composites in relation with the unreinforced AA8011 alloy. The corrosion rate was observed to decrease drastically at higher percentage reinforcement of 20% Si 3 N 4 with 66.78% efficiency. The scanning electron micrographs present a pitting form of corrosion, the pit was seen to be more pronounced in the unreinforced alloy than the developed composites.