scholarly journals Crystal Structure, Surface Activity and Corrosion Inhibition Effect of Dihydroxyethyl Ammonium O,O'-di(4-methylpheny) dithiophosphate for Q235 Steel in 1.0 M H2SO4

2019 ◽  
pp. 10259-10269
Author(s):  
Chuan Lai ◽  
Keyword(s):  
Crystal Structure ◽  
Corrosion Inhibition ◽  
Surface Activity ◽  
Q235 Steel ◽  
Inhibition Effect ◽  
Structure Surface

The Experimental Research on Using Honey to Inhibit Corrosion

2011 ◽  
Vol 233-235 ◽  
pp. 689-692 ◽  
Author(s):  
Ai Jun Wei ◽  
Hua Yi Jiang ◽  
Xin Zhang ◽  
Guang Qiang Zhao
Keyword(s):  
Corrosion Inhibition ◽  
Experimental Research ◽  
Q235 Steel ◽  
Inhibition Effect

Add different concentrations of honey into the simulated brine, then study the corrosion of Q235 steel and the corrosion inhibition effect of honey in different concentrations and temperatures with the method of losing weight. Results show that honey is a good inhibitor.

scholarly journals Mannich Base as Corrosion Inhibitors for N80 Steel in a CO2 Saturated Solution Containing 3 wt % NaCl

Materials ◽  
2019 ◽  
Vol 12 (3) ◽  
pp. 449 ◽  
Author(s):  
Mingjin Tang ◽  
Jianbo Li ◽  
Zhida Li ◽  
Luoping Fu ◽  
Bo Zeng ◽  
...  
Keyword(s):  
Corrosion Inhibitor ◽  
Corrosion Inhibition ◽  
Steel Sheet ◽  
Mannich Base ◽  
Saturated Solution ◽  
Control Group ◽  
Protective Film ◽  
Blank Control Group ◽  
Inhibition Effect ◽  
N80 Steel

In this paper, a corrosion inhibitor containing nitrogen atoms and a conjugated π bond was synthesised, and its final product synthesised by the optimal conditions of the orthogonal test results is named multi-mannich base (MBT). The corrosion inhibition effect on the N80 steel sheet of the corrosion inhibitor was evaluated in a CO2 saturated solution containing 3 wt % NaCl; the corrosion rate was 0.0446 mm/a and the corrosion inhibition rate was 90.4%. Through electrochemical and adsorption theory study, MBT is a mixed corrosion inhibitor that mainly shows cathode suppression capacity. The adsorption of MBT on the surface of the steel sheet follows the Langmuir adsorption isotherm; it can be spontaneously adsorbed on the surface of the N80 steel sheet, which has a good corrosion inhibition effect. The surface of the N80 steel sheet was microscopically characterised by atomic force microscope (AFM). It can be seen from the results that the N80 steel sheet with MBT added is significantly different from the blank control group; the surface of the steel sheet is relatively smooth, indicating that MBT forms an effective protective film on the surface of N80 steel, which inhibits the steel sheet.

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