Systems and methods of protecting metallic engine components from corrosion

A system for protecting a metallic substrate from corrosion, the system comprising:

• a composition including at least one corrosion inhibitor;
• at least two protective layers covering the metallic substrate and including a crevice that extends across the at least two layers to expose a surface of the metallic substrate;
• wherein the composition is dissolved in an aqueous solution located at the surface of the metallic substrate;
• wherein the at least one corrosion inhibitor of the composition contained in the aqueous solution interacts with the surface of the metallic substrate to form a protective film on the surface of the metallic substrate;
• and
• wherein the protective film formed on the surface of the metallic substrate provides the metallic substrate with protection against corrosion.

A method of protecting a metallic substrate from corrosion, the method comprising:

• introducing a composition including at least one corrosion inhibitor into an aqueous solution covering the metallic substrate to dissolve the composition in the aqueous solution and deliver the at least one corrosion inhibitor into contact with a surface of the metallic substrate;
• and
• wherein, in response to an interaction between the at least one corrosion inhibitor of the composition contained in the aqueous solution and the surface of the metallic substrate, a protective film is formed on the surface of the metallic substrate;
• and
• wherein the protective film formed on the surface of the metallic substrate provides the surface of the metallic substrate with protection against corrosion.