An Improved Method for Intergranular Corrosion and Intergranular Stress Corrosion Cracking Resistance

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Naval Surface Warfare Center, Crane Division (NSWC Crane), as patented a process of improving the intergranular corrosion and stress corrosion cracking resistance of metallic alloys and aluminum allows. One embodiment disclosed in the patent includes a method, structure, and/or material composition associated with overetching a structure or allow of interest to create a depletion zone or deplete magnesium content at and in a vicinity of grain boundaries which mitigates or prevents corrosion. Another aspect of the patented invention includes a process, structure, and/or a material composition associated with providing a particular coating, e.g., a ceramic coating of various alloy parts such as aluminum part.. Aditional steps, material compositions, and/or exemplary structure are also included which provide a nano coating over a depletion zone.
Utility Patent
United States
Jul 14, 2015
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