Materials for lake applications require certification. Venezuela has an aluminum industry of great potential, however, the national aluminum alloys (NAAs) have not been evaluated with regard to their application in national lake environments, which vary in aggressiveness in relation to the marine standards applied in naval constructions. With the intention of enhancing the use of NAAs, its behavior in durability in a brackish lake environment such as the waters of Lake Maracaibo was investigated. Specifically, the relative open circuit potential (OCP) behavior was determined for two NAAs, A93003 and A96063. A95083 was also used as standard, with imported origin and duly certified for marine applications. The experimental phase required a test bank that allowed monthly evaluations of these alloys for six months, considering the formation of biofouling morphologically and the living total sessile population, as well as their interfacial interaction electrochemically, recording weekly the thermodynamic tendencies of corrosive processes through the OCP. Physico-chemical variables such as pH, temperature, the relative behaviors of the OCP values and their interactions with biofouling, were determined.

Author Name: Henry Rodríguez, Zoilabet Duque , Carlos Alciaturi

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Keywords: Aluminum Alloys, OCP, Biofouling, Lake of Maracaibo.

ISSN: ISSN Impreso: 1316-4821

EISSN: ISSN Digital: 2542-3401

EOI/DOI:

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