Environmentally friendly inhibitors of carbon steel corrosion in chloride environments

Ivušić, Franjo and Šarc-Lahodny, Olga and Otmačić Ćurković, Helena and Alar, Vesna and Stojanović, Ivan (2014) Environmentally friendly inhibitors of carbon steel corrosion in chloride environments. = Environmentally friendly inhibitors of carbon steel corrosion in chloride environments. In: 21th Conference of materials protection and industrial finish, 10.04.2014., Zagreb, Hrvatska.

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Official URL: https://bib.irb.hr/prikazi-rad?&rad=694281

Abstract

In this research the effect of cerium (III) chloride heptahydrate (CC) and sodium gluconate (SG) on the corrosion inhibition of carbon steels C45 (1531) and DIN RSt 37-2 (0361) in chloride environments has been evaluated using Tafel polarization technique, EIS method and weight loss measurements. Experiments were performed in seawater and 3.5 % NaCl solution. The concentration of CC varied from 0.04 to 10 mmol/L and SG from 1 to 4.5 mmol/L. In order to compare accomplished efficiencies experiments with commercial inhibitors were also performed. The results show that substantial corrosion inhibition using CC and SG in chloride environments can be obtained in synergistic manner. SG acts predominately as anodic inhibitor whereas CC acts as mixed type inhibitor. Thus, using both inhibitors overall inhibition is anodic inhibition.

Item Type: Conference or Workshop Item (Lecture)
Keywords (Croatian): carbon steel, corrosion inhibitors, gluconates, cerium chloride, chloride environments
Subjects: TECHNICAL SCIENCE > Mechanical Engineering
Divisions: 1100 Department of Welded Structures > 1120 Chair of Materials Protection
Date Deposited: 21 Sep 2016 11:59
Last Modified: 21 Sep 2016 11:59
URI: http://repozitorij.fsb.hr/id/eprint/6723

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