How To Prevent Crevice Corrosion
There are many different types of corrosion that threaten all sorts of metal structures. One of the most prevalent and dangerous types of corrosion is crevice corrosion. Discover how to prevent crevice corrosion.
Crevice Corrosion: The Basics
Crevice corrosion results from a stagnant solution in crevices which attack metal surfaces. This is a unique type of corrosion because it can form between two metals or a metal and a non-metal material. Crevice corrosion targets a specific, small area of a larger metal structure and finds a home in microenvironments between two smaller adjoining parts. This makes it difficult to identify. It typically results from the formation of acidic conditions and oxygen depletion within the crevice.
Crevice Corrosion Prevention Methods
Preventing crevice corrosion is difficult to identify quickly. Explore these prevention methods.
Project Planning Prevention
One of the most effective ways of prevention is to consider the causes prior to creating metal structures. Instead of using riveted or bolted joints, use welded butt joints. Riveted or bolted joints are common houses for crevice corrosion while welded butt joints help prevent it from forming. You can also use gaskets made of Teflon to ensure they’re non-absorbent. Another project planning prevention method is to create the structure out of alloyed metals with a strong resistance to crevice corrosion.
Hire Corrosion Prevention Professionals
If your structure is already built, it may be impossible to utilize project planning prevention methods without a full or partial rebuild. This isn’t feasible for most applications. Instead, the best prevention method is to corrosion consultants to survey and create a plan of prevention that best fits your structure.
Dreiym Engineering offers professional corrosion engineering consultant services provided by expert corrosion engineers. We provide full corrosion prevention services including cathodic protection, pipeline and tank analysis and assessment, soil corrosivity analysis, and much more. Contact us today for expert corrosion prevention.