期刊
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
卷 164, 期 2, 页码 C36-C45出版社
ELECTROCHEMICAL SOC INC
DOI: 10.1149/2.0301702jes
关键词
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资金
- European project MULTI-SURF (Marie Sklodowska-Curie grant) [645676]
- Alexander von Humboldt Foundation, Germany
- project CICECO-Aveiro Institute of Materials (FCT) [POCI-01-0145-FEDER-007679, UID /CTM /50011/2013]
- national funds through the FCT/MEC
- FEDER
- Marie Curie Actions (MSCA) [645676] Funding Source: Marie Curie Actions (MSCA)
- EPSRC [EP/N007638/1] Funding Source: UKRI
In the present work, for the first time Zn-Al layered double hydroxide (LDH) nanocontainers were grown in-situ on the surface and in the pores of plasma electrolytic oxidation (PEO) layer and then loaded with a corrosion inhibitor to provide active protection. The developed LDH-based conversion process ensures partial sealing of the pores and provides an effective corrosion inhibition on demand leading to increased fault-tolerance and self-healing properties. The structure, morphology and composition of the LDH-sealed PEO coatings on 2024 aluminum alloy were investigated using SEM, TEM/FIB, XRD and GDOES. Electrochemical impedance spectroscopy and scanning vibrating electrode techniques show a remarkable increase in the corrosion resistance and fault tolerance when PEO coating is sealed with a LDH-inhibitor treatment. (C) The Author(s) 2016. Published by ECS. All rights reserved.
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