Assessment of the Inhibition Efficiency of 3-amino-5-methylthio-1H-1,2,4-triazole Against the Corrosion of Mild Steel in Acid Chloride Solution

被引：7
|
作者：
Scendo, Mieczyslaw [1 ]
Staszewska-Samson, Katarzyna [1 ]
机构：
[1] Jan Kochanowski Univ Kielce, Inst Chem, Swietokrzyska 15G, PL-25406 Kielce, Poland
来源：
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE | 2017年 / 12卷 / 06期
关键词：
A. C45 mild steel; A. 3-amino-5-methylthio-1H-1,2,4-triazole; C. Inhibition efficiency; C. Corrosion rate; C. Temkin adsorption isotherm; CARBON-STEEL; DERIVATIVES; ADSORPTION; TRIAZOLE; MECHANISM; COPPER; HCL; OXADIAZOLE; ALUMINUM; BEHAVIOR;
D O I：
10.20964/2017.06.86
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Influence of 3-amino-5-methylthio-1H-1,2,4-triazole (AMTTA) concentration on the corrosion of C45 mild steel in acid chloride solutions were studied. The potentiodynamic (PD) polarization, electrochemical impedance spectroscopy (EIS) methods and quantum chemical calculations were used. The surface morphology of specimens were observed through inverted metallographic microscope (IMM). It has been shown that the inhibition efficiency increased with an increase in the concentration of 3-amino-5-methylthio-1H-1,2,4-triazole. Tafel polarization study revealed that AMTTA acted as mixed type inhibitor. The best fit to the experimental data was obtained using Temkin adsorption isotherm. It was found that the adsorption of inhibitor on the mild steel surface takes place through a typical physisorption. Moreover, the adsorption mechanism of AMTTA on C45 mild steel surface was proposed and discussed.
引用
收藏
页码：5668 / 5691
页数：24
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