Hydrothermal surface treatments with Cerium and Glycol molecules on the AA 2024-T3 clad alloy
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Key Engineering Materials
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New treatments for replacement of chromate require lower toxicity and corrosion
protection. This study aims to investigate the influence of the combination of a Ce conversion
coating (CCCe) with glycol molecules on the corrosion resistance of the AA2024-T3 clad
(AA1230). The corrosion resistance of surface treated and untreated samples was evaluated by
electrochemical techniques (electrochemical impedance spectroscopy, polarization tests and open
circuit potential). These tests were complemented by salt spray tests to accelerate the corrosive
effects of weathering. The surfaces were analyzed after corrosion tests by scanning electron
microscopy with X-ray energy dispersive detector (SEM - EDX). The results of the CCCe samples
in combination with glycol were compared with that of the surface with chromate layer and the
results showed that the CCCe treatment is a candidate for replacement of chromating with the
advantage that it does not generate toxic residues. The self-healing capacity of the new treatment
tested was indicated by the increased formation of corrosion products deposition on top of Fe rich
intermetallis in the AA1230 clad with time of exposure to the electrolyte.
Como referenciar
SANTOS, WAGNER I.A. dos; COSTA, ISOLDA; TOMACHUK, CELIA R. Hydrothermal surface treatments with Cerium and Glycol molecules on the AA 2024-T3 clad alloy. Key Engineering Materials, v. 710, p. 216-221, 2016. DOI: 10.4028/www.scientific.net/kem.710.216. Disponível em: http://repositorio.ipen.br/handle/123456789/27512. Acesso em: 30 Dec 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.