期刊
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
卷 11, 期 7, 页码 6043-6051出版社
ESG
DOI: 10.20964/2016.07.21
关键词
AZ31 magnesium alloy; N '-bis (2-pyridylmethylidene)-1,2-diiminoethane; Corrosion Langmuir isotherm; Inhibitor
The inhibition effect of a Schiff base N'-bis (2-pyridylmethylidene)-1,2-diiminoethane (BPMDE) on AZ31 magnesium alloy was studied in this work. Results showed the BPMDE acts as an effective inhibitor for magnesium in 0.01 M HCl. Potentiodynamic polarization characterization revealed the BPMDE inhibits both anodic and cathodic reactions, indicating the BPMDE acts as a mixed-type corrosion inhibitor behavior. Due to the increasing of adsorption of BPMDE on magnesium alloy surface, the charge transfer resistance consequently increased while the double layer capacitance declined. Moreover, the adsorption of BPMDE on the AZ31 magnesium alloy surface obeys the Langmuir isotherm.
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