Corrosion protection of non-alloyed AIAI 316L concrete steel metal grade in aqueous H2SO4: Electroanalytical and surface analyses with Metiamide

被引：14

作者：

Eduok, Ubong M. ^{[1
]}

Khaled, Mazen M. ^{[1
]}

机构：

[1] King Fahd Univ Petr & Minerals, Dept Chem, Dhahran 31261, Saudi Arabia

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2014年 / 68卷

关键词：

Steel; Material corrosion; Metiamide; Sulphuric acid; Electrochemistry; RHODANINE AZOSULPHA DRUGS; MILD-STEEL; INHIBITION; POLYACRYLAMIDE; FLUCONAZOLE; DERIVATIVES; ADSORPTION; BEHAVIOR;

D O I：

10.1016/j.conbuildmat.2014.06.073

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The inhibitive ability of an imidazoline-derived compound, Metiamide (N-methyl-N'-(2-{[(4-methyl-1H-imidazol-5-yl)methyl]thio}ethyl)thiourea) - MTA - on non-alloyed AIAI 316L concrete steel metal grade (MS) corrosion in 0.5 M H2SO4 solution has been evaluated in this study using Electrochemical impedance spectroscopy, Potentiodynamic polarization and Linear polarization resistance methods. The inhibitor protected MS by inhibiting its corrosion rate in the acidic medium and the inhibition efficiency (I%) increased with the concentration of the inhibitor. The adsorption behaviour of MTA inhibitor has been explained with respect to impedance data. Atomic Force Microscopy (AFM) and Scanning Electron Microscopy (SEM) characterizations for surface morphological studies complemented the electrochemical studies. This work is designed to study the protection of non-alloyed concrete iron steel used in acid service environment with an organic corrosion inhibitor. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：285 / 290

页数：6

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