Perezone as corrosion inhibitor for AISI 1018 steel immersed in NaCl saturated with CO2

被引：8

作者：

Espinoza-Vazquez, A. ^{[1
]}

Rodriguez-Gomez, F. J. ^{[1
]}

Mata, R. ^{[2
]}

Madariaga-Mazon, A. ^{[2
]}

Angeles-Beltran, D. ^{[3
]}

机构：

[1] Univ Nacl Autonoma Mexico, Dept Ingn Met, Fac Quim, Mexico City 04510, DF, Mexico

[2] Univ Nacl Autonoma Mexico, Dept Farm, Fac Quim, Mexico City 04510, DF, Mexico

[3] Univ Autonoma Metropolitana Azcapotzalco, Dept Ciencias Basicas, San Pablo Av 180, Mexico City 02200, DF, Mexico

来源：

JOURNAL OF SOLID STATE ELECTROCHEMISTRY | 2017年 / 21卷 / 06期

关键词：

Perezone; AISI; 1018; EIS; Langmuir; HYDROCHLORIC-ACID MEDIUM; 1 M HCL; MILD-STEEL; DERIVATIVES; EXTRACTS;

D O I：

10.1007/s10008-017-3528-0

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

An electrochemical study of natural compound perezone as a corrosion inhibitor of 1018 steel immersed in 3% NaCl solution saturated with CO2 was conducted through electrochemical impedance spectroscopy under static and turbulent flow conditions and inhibitor concentration in the 0-50-ppm range. It was determined that perezone provides good corrosion protection at 10-ppm concentration with efficiency of AE = 87% in static conditions, whereas in hydrodynamic conditions at both rotation rates of 100 and 500 rpm, the efficiency reached AE = 96 and 95%, respectively, at a concentration of 5 ppm. A thermodynamic analysis by means of the Langmuir adsorption model indicated that inhibitor molecules are physisorbed to the steel surface.

引用

页码：1687 / 1697

页数：11

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