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Preparation and corrosion behavior of cerium (III)-modified and electro-assisted deposited bis-1,2-[triethoxysilyl] ethane film on the aluminum alloy AA2024-T3

Dongdong Peng (Institute of Advanced Materials and Technology, University of Science and Technology Beijing, Beijing, China)
Junsheng Wu (Institute of Advanced Materials and Technology, University of Science and Technology Beijing, Beijing, China)
Pingping Chu (Institute of Advanced Materials and Technology, University of Science and Technology Beijing, Beijing, China)
Xiaogang Li (Institute of Advanced Materials and Technology, University of Science and Technology Beijing, Beijing, China)

Anti-Corrosion Methods and Materials

ISSN: 0003-5599

Article publication date: 3 January 2017

147

Abstract

Purpose

This paper aims to investigate the effect of cerium modification and electrodeposition on the properties of the silane films obtained. Besides, the influence of dissolved oxygen was also researched through inhalation of oxygen or nitrogen. Moreover, the corresponding corrosion behavior of the silane films was also studied.

Design/methodology/approach

In this paper, surface morphology and corrosion-resistant properties of the films were characterized by scanning electron microscopy, electrochemical impedance spectroscopy, immersion test and the salt spray test.

Findings

The paper reveals that all the practical parameters including the concentration of dissolved oxygen had a marked effect on the anti-corrosive performance of the films, which may be attributed to the dense and compact structure of the films obtained. Furthermore, the self-healing ability of the films had also been enhanced through the rise of dissolved oxygen concentration in proper proportion.

Originality/value

This paper reveals the effect of practical parameters on the properties of the silane films obtained and the corrosion behavior of these films.

Keywords

Acknowledgements

The authors gratefully acknowledge financial support from the National Natural Science Foundation of China (No. 50701006 and No. 51271031), the Fundamental Research Funds for the Central Universities (FRF-SD-12-027A and FRF-BR-13-034), National Basic Research Program of China (973 Program) (No. 2014CB643300) and the National Environmental Corrosion Platform (NECP).

Citation

Peng, D., Wu, J., Chu, P. and Li, X. (2017), "Preparation and corrosion behavior of cerium (III)-modified and electro-assisted deposited bis-1,2-[triethoxysilyl] ethane film on the aluminum alloy AA2024-T3", Anti-Corrosion Methods and Materials, Vol. 64 No. 1, pp. 83-91. https://doi.org/10.1108/ACMM-03-2016-1658

Publisher

:

Emerald Publishing Limited

Copyright © 2017, Emerald Publishing Limited

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