期刊
CORROSION SCIENCE
卷 92, 期 -, 页码 76-84出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2014.11.031
关键词
Magnesium; Passive films; Polarization; SEM; XRD
资金
- Advanced Industrial Technology Development, New Energy and Industrial Technology Development Organization (NEDO) of Japan [11B06024d]
- Adaptable and Seamless Technology Transfer Program through Target-driven R&D, Japan Science and Technology Agency [AS251Z02997K]
Films of the Mg(OH)(2)/Mg-Al layered double hydroxide composite were formed on the combustionresistant magnesium alloy AMCa602 by steam coating and characterized by X-ray diffraction, Fourier-transform infrared spectroscopy, and scanning electron microscopy. The corrosion-resistance performances of the films in a 5 wt% NaCI solution were investigated using electrochemical measurements. The corrosion current density of the sample that was steam-coated at 433 K for 6 h using the aqueous solution containing 200 mM Al(NO3)(3) decreased significantly more than that of the bare AMCa602. The correlations between the Mg Al LDH content in the films, Al(NO3)(3) concentration in the aqueous solutions, and corrosion current densities were investigated. (C) 2014 Elsevier Ltd. All rights reserved.
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