scholarly journals Electrochemical Analysis of Carbon Steel Corrosion Induced by Chloride and Sulfate Ions in Simulated Concrete Pore Solution

2018 ◽  
pp. 6248-6258 ◽  
Author(s):  
Guojian Liu ◽  
Keyword(s):  
Carbon Steel ◽  
Pore Solution ◽  
Steel Corrosion ◽  
Electrochemical Analysis ◽  
Sulfate Ions

scholarly journals Research on the St3 Carbon Steel Corrosion in the Presence of Microorganisms Isolated from the Groundwater at the Yeniseyskiy Site

2021 ◽  
Vol 16 (3) ◽  
pp. 103-113
Author(s):  
K. A. Boldyrev ◽  
◽  
A. V. Safonov ◽  
E. S. Abramova ◽  
N. A. Gladkikh ◽  
...  
Keyword(s):  
Carbon Steel ◽  
Steel Corrosion ◽  
Fold Increase ◽  
Sulfate Ions ◽  
Sulfate Reducing ◽  
Anaerobic Corrosion ◽  
Bentonite Clays ◽  
Reducing Bacteria ◽  
Degradation Effect ◽  
Aerobic And Anaerobic

The paper presents the experimental study exploring the corrosion of carbon steel St3 samples in the presence of a microbiological community sampled at the Yeniseiskiy site and the microbiota of bentonite clays. Depending on the conditions, an average 3—30-fold increase in the corrosion rate of steel was observed due to the biogenic and biogenic-mediated processes. The maximum steel degradation effect was observed at a temperature of 50°C in the presence of sulfate ions under conditions being considered optimal for sulfate-reducing bacteria. The developed steel corrosion model was used to determine the activation energy of the aerobic and anaerobic corrosion process.

Inhibition of Carbon Steel Corrosion in 1 M H2SO4 Using Soy Polymer and Polyvinylpyrrolidone

2018 ◽  
Vol 2 (2) ◽  
pp. 277-289 ◽  
Author(s):  
S. C. Nwanonenyi ◽  
H. C. Obasi ◽  
I. C. Chukwujike ◽  
M. A. Chidiebere ◽  
E. E. Oguzie
Keyword(s):  
Carbon Steel ◽  
Steel Corrosion

Experimental Study on the Interaction Effect of Sulfate Ions and Chloride Ions on Reinforcement Corrosion in Marine Environment

2017 ◽  
Author(s):  
Yi Huang ◽  
Yunze Xu ◽  
Xiaona Wang ◽  
Shide Song ◽  
Lujia Yang
Keyword(s):  
Passive Film ◽  
Pore Solution ◽  
Construction Materials ◽  
Chloride Ions ◽  
Localized Corrosion ◽  
Test Results ◽  
Reinforcement Corrosion ◽  
Marine Structures ◽  
Sulfate Ions ◽  
Corrosion Risk

Reinforced concrete is one of the most widely used construction materials for marine structures. Due to the abundance of the aggressive ions such as chloride ions and sulfate ions in the seawater, the reinforcement exposed to the marine and costal environment are exposed to a high corrosion risk. Localized corrosion will occur once the passive film on the rebar is damaged. In this work, the corrosion behavior of the steel in the simulated pore solution containing with both sulfate ions and chloride ions are studied by using cyclic potentialdynamic polarization methods and the corrosion morphologies observed using scanning electron microscope (SEM). The test results show that the initial rebar corrosion is caused by the absorption of the chloride ions in the passive film. The sulfate ions nearly had no effect on the corrosion of the rebar in pore solution and it can further mitigate the pitting corrosion in chloride containing pore solution.

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