Effect of triethanolamine on steel corrosion in solution simulating pore liquid in carbonated concrete

2020 ◽  
Vol 1 (8) ◽  
pp. 12-15
Author(s):  
JUSTYNA KUZIAK
Keyword(s):  
Steel Corrosion ◽  
Pore Liquid

The inhibition of steel corrosion in model pore liquid of the concrete by derivatives of phenol

2019 ◽  
Vol 24 (4) ◽  
pp. 15-19
Author(s):  
I.A. Gedvillo ◽  
А.S. Zhmakina ◽  
N.N. Andreev
Keyword(s):  
Sodium Nitrite ◽  
Steel Corrosion ◽  
Free Access ◽  
Protective Properties ◽  
Phenol Derivatives ◽  
Model Pore ◽  
Pore Liquid ◽  
Corrosion Of Steel ◽  
Derivatives Of ◽  
Full Protection

In the course of corrosion tests, the protective properties of sodium nitrite and phenol derivatives in the electrolyte simulating a pore liquid of concrete contaminated with chlorides were compared. The experiments were carried out not only in hermetically sealed cells but also and in conditions of free access of air. It was found that in hermetically sealed cells phenol and resorcinol inhibit corrosion of steel, but significantly inferior to the protective ability of sodium nitrite. Hydroquinone protects steel more effectively than nitrite under conditions of limited oxygen access to metal. However, there is a significant deformation of plastic cells, which may be due to the absorption of oxygen, and the corresponding inhibition of the cathode process. With natural aeration of the model electrolyte hydroquinone in concentrations (1….2 g/l) inhibits the corrosion process in 2…8 times. In this case, the samples were covered with a gray film with a blue tint, but unlike nitrite, full protection of steel was not observed. Large concentrations of hydroquinone under these conditions significantly activate the corrosion of steel.

Protective postaction of inhibitor IFKhAN-92 for chromium-nickel stainless steel corrosion in hydrochloric acid

2019 ◽  
pp. 20-25
Author(s):  
Ya.G. Avdeev ◽  
◽  
Yu.B. Makarychev ◽  
D.S. Kuznetsov ◽  
L.P. Kazanskii ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Hydrochloric Acid ◽  
Steel Corrosion

Inhibition of pipeline steel corrosion in acidic environment using sulphadoxine and pyrimethamine

2019 ◽  
Author(s):  
Chem Int
Keyword(s):  
Inhibition Efficiency ◽  
Pipeline Steel ◽  
Electrochemical Techniques ◽  
Steel Corrosion ◽  
Acidic Environment ◽  
Inhibitor Concentration ◽  
Adsorption Data ◽  
Corrosion Inhibition Efficiency ◽  
Inhibitive Action ◽  
Sulphadoxine Pyrimethamine

The anti-corrosive properties of sulphadoxine + pyrimethamine (S+P) on the corrosion of pipeline steel in acidic environment were investigated using electrochemical techniques. The results obtained showed an excellent inhibition efficiency which increased with increase in inhibitor concentration. The corrosion inhibition efficiency increased up to 99.04 % at 0.01M S+P and decreased with rise in temperature down to 85.93 % at 333 K and 0.01 M S+P, suggesting a physiosorptive mechanism of adsorption. Also the adsorption data was fitted into Langmuir and Temkin adsorption isotherms, while the inhibitive action was shown to proceed by mixed inhibition mode.

Steel Corrosion in Concrete Mixed with Seawater

2018 ◽  
Vol 56 (12) ◽  
pp. 989-994
Author(s):  
T. Nishida ◽  
N. Otsuki ◽  
H. Hamada
Keyword(s):  
Steel Corrosion

The protective effect of magnesium phosphate cement on steel corrosion

2020 ◽  
Vol 255 ◽  
pp. 119422 ◽  
Author(s):  
Hao Tang ◽  
Jueshi Qian ◽  
Ziwei Ji ◽  
Xiaobing Dai ◽  
Zhen Li
Keyword(s):  
Protective Effect ◽  
Steel Corrosion ◽  
Magnesium Phosphate

Tetrahydroacridines as corrosion inhibitor for X80 steel corrosion in simulated acidic oilfield water

2019 ◽  
Vol 293 ◽  
pp. 111478 ◽  
Author(s):  
Weiwei Zhang ◽  
Hui-Jing Li ◽  
Meirong Wang ◽  
Li-Juan Wang ◽  
Qianwen Pan ◽  
...  
Keyword(s):  
Corrosion Inhibitor ◽  
Steel Corrosion ◽  
X80 Steel ◽  
Oilfield Water

Steel Corrosion Characterization Using Pulsed Eddy Current Systems

2012 ◽  
Vol 12 (6) ◽  
pp. 2113-2120 ◽  
Author(s):  
Yunze He ◽  
Guiyun Tian ◽  
Hong Zhang ◽  
Mohammed Alamin ◽  
Anthony Simm ◽  
...  
Keyword(s):  
Eddy Current ◽  
Steel Corrosion ◽  
Pulsed Eddy Current ◽  
Current Systems

scholarly journals Investigation of Corrosion Rate and Rust Expansion Form of Segment Reinforcement for Shield Tunnel by Combined Action of Soil Loading, Chloride Ion and Stray Current

2021 ◽  
Vol 13 (6) ◽  
pp. 3444
Author(s):  
Zheng Li ◽  
Hao Jin ◽  
Shuo Yu
Keyword(s):  
Corrosion Rate ◽  
Steel Corrosion ◽  
Chloride Ion ◽  
Shield Tunnel ◽  
Uniform Corrosion ◽  
Stray Current ◽  
Soil Loading ◽  
Capacity Degradation ◽  
Expansion Form ◽  
Combined Action

Segment reinforcement corrosion can cause bearing-capacity degradation of shield tunnel, which is unsafe for the metro operation. Therefore, a three-dimensional computational model was proposed in this paper to study the corrosion rate and rust expansion form of segment reinforcement by the combined action of soil loading, chloride ion and stray current. The results show that the arch waist segment steel corrosion rate in the middle is larger than the ends. The rust expansion form of segment reinforcement appears be an eccentric circle. The radius size and circular center are related to the non-uniform corrosion coefficient and the maximum corrosion current density.

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