期刊
CORROSION SCIENCE
卷 61, 期 -, 页码 185-207出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2012.04.030
关键词
Magnesium; Polarization; EIS; Weight loss; Negative difference effect
资金
- CAST CRC
- Australian Research Council Centre of Excellence Design of Light Alloys
- GM Global Research and Development
- Australian Federal Government's Cooperative Research Centre
- Malaysian Government Scholarship
The corrosion behaviour was characterized using hydrogen evolution, weight loss, electrochemical impedance spectroscopy (EIS) and cathodic polarization curves, in 3.5% NaCl saturated with Mg(OH)(2), with tests lasting up to 14 days, and compared with the corrosion behaviour of the HP Mg used in our prior research at UQ. The corrosion behaviour was consistent with the uni-positive me ion Mg corrosion mechanism, particularly the fact that the corrosion rate measured using electrochemical techniques was consistently lower than that measured independently by weight loss or hydrogen evolution, as predicted by the uni-positive Mg+ ion Mg corrosion mechanism. (C) 2012 Elsevier Ltd. All rights reserved.
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