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Evaluation of Aluminum/Ceramic Coating on Fasteners to Eliminate Galvanic Corrosion
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Abstract
This paper addresses the use of novel aluminum-filled inorganic coatings on plain carbon steel or stainless steel fasteners in order to eliminate galvanic corrosion in structural assemblies incorporating dissimilar metals. These coatings are described and compared with zinc plated fasteners and other metals in a galvanic series. In environmental testing, stainless steel fasteners and carbon steel fasteners coated with zinc and aluminum-filled coatings, are coupled with aluminum, tin, copper, and 300 series stainless steel. The results of these tests indicate that this sacrificial aluminum/ceramic coating system limits corrosion of steel fasteners more effectively than zinc platings. Moreover, when active or passive metals, including aluminum, tin, copper, and stainless steel, were joined using fasteners coated with the aluminum-filled material, corrosion of both fasteners and structural components was controlled more effectively than when zinc plated or stainless steel screws were used.
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Citation
Mosser, M. and McMordie, B., "Evaluation of Aluminum/Ceramic Coating on Fasteners to Eliminate Galvanic Corrosion," SAE Technical Paper 860112, 1986, https://doi.org/10.4271/860112.Also In
References
- LaQue, F.L. Marine Corrosion: Causes and Prevention John Wiley s Sons New York, NY 1975 177
- de S. Brasunas A. Corrosion Basics: An Introduction NACE Houston, TX 1984 35
- Fontana, M.G. Greene, N.D. Corrosion Engineering McGraw Hill New York, NY 1967 37 38
- Mansfeld, F. “Galvanic Corrosion of Al Alloys Coupled to Coated PH 13-8Mo Stainless Steel” Corrosion 29 7 July 1973 277
- Schlitt, R.P. Eschebach, R.K. “Material Selection and Corrosion Protection for Bi-Metallic Systems in Automotive Environments” Proc. of 2nd Automotive Corrosion Prevention Conf. SAE Warrendale, PA Dec 1983 191