Abstract
Intermetallic particle electrochemistry plays significant role in localized corrosion and stress-corrosion cracking of aluminum alloys. This article presents specific examples from recent and on-going studies of stress-corrosion cracking in Al-Mg alloys and localized corrosion in Al-Cu alloys. The common approach in these examples is an explicit accounting of the intermetallic particle-dissolution characteristics, which is developed by measuring the electrochemical behavior of bulk analog compounds. Findings from these types of measurements combined with results from new and advanced small-length scale measurements confirm some of the established ideas about localized corrosion in aluminum alloys, but also lead to new insights that are important for a thorough understanding of corrosion damage accumulation.
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For more information, contact R.G. Buchheit, The Ohio State University, Department of Materials Science and Engineering, 477 Watts Hall, 2041 College Road, Columbus, Ohio 43210; (614) 292-6085; fax (614) 292-9857; e-mail buchheit.8@osu.edu.
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Buchheit, R.G., Boger, R.K., Carroll, M.C. et al. The electrochemistry of intermetallic particles and localized corrosion in Al alloys. JOM 53, 29–33 (2001). https://doi.org/10.1007/s11837-001-0084-x
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DOI: https://doi.org/10.1007/s11837-001-0084-x