Development of a Vehicle Micro Environment Corrosivity Index

Corrosion control of ground vehicles is typically based on the corrosivity of the environment to which they are exposed.  A system that is designed to primarily operate in a marine or coastal environment may have additional corrosion control methods used as compared to a vehicle primarily used in the artic.  However, within the envelope of the vehicle there can exist micro-environments where corrosion can be accelerated to differing factors.  By understanding these micro-environments better material decisions can be made during initial design and production; thus allowing the most-effective use of corrosion control technologies.  This paper will explore the various micro-environments that exist on ground vehicles and the development of a corrosivity index / rating for these environments.