CORROSION ANALYSIS OF FUEL PUMP COMPONENTS CAUSED BY USE OF MIXED FUEL GASOLINE AND BIOETHANOL

Stainless steel material is a material that has superior properties, namely good resistance to corrosion. This makes use of a very large and varied, one of the uses in the automotive field, stainless steel is used as a component of fuel pumps. Stainless steel can experience corrosion if all or part of the protective layer is damaged, damage occurs because the liquid or strong acid solution is delivered by HCl. Corrosion testing uses the immersion method, the immersion solution used is a solution of gasoline / premium fuel bioethanol 20%, 50%, 85% and 100% (pure bioethanol fuel without gasoline / premium fuel). The immersion test was carried out for 10 weeks at room temperature. The study aims (1) to know the form of corrosion (2) identify corrosion products, (3) determine the corrosion resistance of materials based on corrosion rates, (4) determine the effect of percentage bioethanol on corrosion rates.