The synergistic effect of 2-mercaptobenzotiazole and zinc nitrate as corrosion inhibitor on carbon steel in saline solution
-
Hamze Foratirad
,
Majid Golabadi
Abstract
In this study, the synergistic effects of 2-mercaptobenzotiazole molecules and zinc nitrate on the corrosion behavior of carbon steel were investigated using electrochemical techniques in 3.5% NaCl solution. The experimental results revealed that combination of 2-mercaptobenzoimidazole (MBT) and zinc nitrate with ratio of 100 ppm : 100 ppm, resulted in the least corrosion current (1.03 lA cm-2) and the highest corrosion inhibition efficiency. Polarization results showed that the inhibition mechanism of inhibitor was mixed-type (anodic and cathodic mechanism) corrosion inhibition which was predominantly influenced by a reduction in dissolution rate of the substrate (decrease in anodic current density). Electrochemical impedance spectroscopy analysis yielded more accurate results about the formation mechanism and stability of the inhibitor film over prolonged time. The precipitation of chelate from inhibitor molecules and zinc cations on steel surface was found to be the main mechanism for increasing the corrosion resistance of steel substrate.
© 2020 by Walter de Gruyter Berlin/Boston
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- Notifications
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Articles in the same Issue
- CONTENTS
- Original Contributions
- Preparation of silicon boride SiBx (x = 3, 4, 5, 6) powders by chemical oven self-propagating combustion synthesis
- Structural, electrical and magnetic properties of glucose-capped CdS nanoparticles
- Microstructure and texture of Ti-6Al-4V alloy deformed by rotary forging at elevated temperatures
- The influence of multi-pass friction stir processing on microstructure and sliding wear behavior of Cu/ZrO2 surface composite
- Mechanical bonding in cold roll-cladding of tri-layered brass/steel/brass composite
- Borocarbide coarsening and the effect of borocarbide particle size on Charpy V-notch impact properties of medium-carbon boron-containing steel
- Study on photocatalytic activity based on different pH values of AgBr/Ag2CO3 heterojunction
- Study of the crystallization kinetics of a Zr57Cu15.4Ni12.6Al10Nb5 amorphous alloy
- Highly efficient biocide silver-doped soda lime glass for application in water quality optical sensors
- The synergistic effect of 2-mercaptobenzotiazole and zinc nitrate as corrosion inhibitor on carbon steel in saline solution
- Short Communications
- Accelerated degradation rate of high-strength Mg-4Y-1Zn alloy by Cu addition for degradable bridge-plug applications
- Notifications
- DGM
- Conferences
- Imprint
