Inhibition effect of 4-phenylthiazole derivatives on corrosion of 304L stainless steel in HCl solution

被引：193

作者：

Fouda, A. S. ^{[1
]}

Ellithy, A. S. ^{[2
]}

机构：

[1] Mansoura Univ, Fac Sci, Dept Chem, Mansoura 35516, Egypt

[2] AZFC, Cairo, Egypt

来源：

CORROSION SCIENCE | 2009年 / 51卷 / 04期

关键词：

4-phenylthiazole derivatives; Corrosion inhibitors; 304L stainless steel; HCl; Theoretical calculations; MILD-STEEL; C-STEEL; HYDROCHLORIC-ACID; IRON; ADSORPTION; MEDIA; SURFACTANTS; BEHAVIOR; TRIAZOLE;

D O I：

10.1016/j.corsci.2009.01.011

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Some 4-phenylthiazole derivatives were tested as corrosion inhibitors for 304L stainless steel in 3.0 M HCl using weight loss and galvanostatic techniques. The results showed that the inhibition efficiency increases with increasing the concentration of the 4-phenylthiazole derivatives. Polarization measurements showed that these derivatives act as mixed-type inhibitors. The adsorption of these inhibitors on the surface of stainless steel follows Temkin's adsorption isotherm and kinetic model. The effect of temperature on the corrosion was investigated by the weight loss method and some thermodynamic parameters were calculated. The synergistic influence caused by thiocyanate ion on the inhibition of corrosion of 304L stainless steel in 3.0 M HCl in the presence of 4-phenylthiazole derivatives has been studied using weight loss method. The inhibition action of these 4-phenylthiazole derivatives was discussed in terms of its adsorption on the metal surface. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：868 / 875

页数：8

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