Comparison of the corrosion resistance of an Al–Cu alloy and an Al–Cu–Li alloy
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2019
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Corrosion Engineering, Science and Technology
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In this study, the corrosion mechanisms of the AA2024-T3 and the AA2098-T351 were investigated and
compared using various electrochemical techniques in 0.005 mol L−1 NaCl solution. The severe type of
corrosion in the AA2098-T351 was intragranular attack (IGA) although trenching and pitting related to
the constituent particles were seen. On the other hand, the AA2024-T3 exhibited severe localised
corrosion associated with micrometric constituent particles, and its propagation was via grain
boundaries leading to intergranular corrosion (IGC). Electrochemical techniques showed that the
corrosion reaction in both alloys was controlled by diffusion. The non-uniform current distribution
in both alloys showed that EIS was not a proper technique for comparing the corrosion resistance
of the alloys. However, local electrochemical techniques were useful for the evaluation of the
corrosion resistance of the alloys.
Como referenciar
MILAGRE, MARIANA X.; DONATUS, UYIME; MACHADO, CARULINE S.C.; ARAUJO, JOAO V.S.; SILVA, REJANE M.P. da; VIVEIROS, BARBARA V.G. de; ASTARITA, ANTONELLO; COSTA, ISOLDA. Comparison of the corrosion resistance of an Al–Cu alloy and an Al–Cu–Li alloy. Corrosion Engineering, Science and Technology, v. 54, n. 5, p. 402-412, 2019. DOI: 10.1080/1478422X.2019.1605472. Disponível em: http://repositorio.ipen.br/handle/123456789/29964. Acesso em: 16 Mar 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.