Active self-healing coating for galvanically coupled multi-material assemblies
authors Serdechnova, M; Kallip, S; Ferreira, MGS; Zheludkevich, ML
nationality International
journal ELECTROCHEMISTRY COMMUNICATIONS
author keywords Galvanic couple; CFRP; Al alloy; Self-healing coating; Nanocontainer; Synergistic inhibition
keywords CORROSION PROTECTION; FILIFORM CORROSION; COATED AA2024-T3; INHIBITION; PIGMENTS; NANOCONTAINERS; ENVIRONMENT; COPPER; SVET; CELL
abstract A new "self-healing" coating concept for active corrosion protection on galvanically coupled multi-material structures is reported in the present work. The novel approach is based on the combination of two types of nanocontainers with two different inhibitors in the same coating system. The nanocontainers confer a triggered release of both inhibitors which act in a synergistic way when an aluminum alloy is galvanically coupled with carbon fiber reinforced plastic. The layered double hydroxide and bentonite were used as functional nanocarriers for 1,2,3-benzotriazole and Ce3+ inhibitors respectively. Scanning vibrating electrode technique has been applied for the monitoring of galvanic corrosion activities and kinetics of self-healing processes in confined defects. The effective inhibition of electrochemical activity in the defects on coated galvanically coupled aluminum alloy with carbon fiber reinforced plastic was demonstrated for the first time. (C) 2014 Elsevier B.V. All rights reserved.
publisher ELSEVIER SCIENCE INC
issn 1388-2481
year published 2014
volume 41
beginning page 51
ending page 54
digital object identifier (doi) 10.1016/j.elecom.2014.01.023
web of science category Electrochemistry
subject category Electrochemistry
unique article identifier WOS:000333858100014
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  impact metrics
journal impact factor (jcr 2016): 4.396
5 year journal impact factor (jcr 2016): 4.607
category normalized journal impact factor percentile (jcr 2016): 84.483
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