Eco-Friendly Corrosion Inhibition of AA2024 in 3.5% NaCl Using the Extract of Linum usitatissimum Seeds

被引：0

作者：

Elgahawi H. ^{[1
,3
]}

Gobara M. ^{[2
]}

Baraka A. ^{[2
]}

Elthalabawy W. ^{[3
]}

机构：

[1] Libyan Armed Force, Tripoli

[2] Chemical Engineering Department, Military Technical College, Cairo Governorate

[3] Metallurgy Engineering Department, Military Technical College, Cairo Governorate

来源：

Journal of Bio- and Tribo-Corrosion | 2017年 / 3卷 / 04期

关键词：

Corrosion; EIS; EN; GC–MS;

D O I：

10.1007/s40735-017-0116-x

中图分类号：

学科分类号：

摘要：

Inhibitive effect of the extract of Linum usitatissimum seeds (ELUS) on the corrosion of the aluminum alloy AA2024 immersed in NaCl solution (3.5%) was studied by potentiodynamic polarization (PDP), electrochemical impedance spectroscopy (EIS) and electrochemical noise measurement (EN) techniques. ELUS effectively inhibited the corrosion of AA2024 with efficiency ranges from 65 to 82% for the corresponding ELUS concentrations from 80 to 1200 ppm. PDP showed that ELUS works as a cathodic inhibitor for aluminum in 3.5% NaCl solution. EIS showed that the corrosion process was governed by the charge transfer resistance (Rct), where Rct values gradually increase with the increase in LU concentration. The results of EN are in a good agreement with the PDP and EIS results. Also, SEM confirms the electrochemical results. © 2017, Springer International Publishing AG.

引用

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