Abstract

Corrosion is commonly known as rust, an undesirable phenomena which destroys the luster and beauty of objects and cause shorter of life span. The objective for this research is to study the effect of using green inhibitor with seawater (NaCl) to the corrosion resistance of stainless steel 304. The green inhibitor was extracted from banana peel added with seawater (3.5% NaCl). The concentration of green inhibitor added was 5%, 10%, 15%, 20% and 25%. The test was conducted using the 3-electrode potentiostat to understand the behaviour of corrosion attack on stainless steel 304 at room temperature under static conditions. The results elucidate that green inhibitor has significant effect to the breakdown of passive film of stainless steel 304 in seawater. The forms of corrosion attack were viewed by using optical microscope. In conclusion, banana peel can be use as green inhibitor to increase corrosion resistance of stainless steel 304 and at the same time the abundant waste from local small industries can be recycled.

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