Reproducing Corrosion State and Predicting Corrosion Transition of Stainless Steel used in Exhaust System of Vehicles pooled in Coastal Area.

Abstract

When vehicles are pooled in a coastal area, specific disfiguring rust may be generated on exhaust parts made of stainless steel. This study is to build the simulation technique and to clarify the mechanism. This result indicates that the corrosion morphology forms by exhaust heat and magnesium chloride (MgCl2). Furthermore, we conducted seasonal outdoor exposure tests to investigate the main environmental corrosion factors and the corrosion transition behavior of each stainless steel, and built a corrosion prediction method.