Simulation of corrosion behaviour of stainless steels in passenger car exhaust systems

Passenger car exhaust systems make high demands on the stainless and heat-resistant steels used for these components. Condensate formation and particles of electrochemical active soot in the colder section of exhaust systems can lead to pronounced wet corrosion on the inner surfaces. To allow a comparison of different steel types in this respect, Konstanz University of Applied Sciences and ThyssenKrupp Nirosta carried out investigations under simulation of these special corrosion conditions.