Inhibition effect and theoretical investigation of dicarboxylic acid derivatives as corrosion inhibitor for aluminium alloy

2020 ◽  
Vol 71 (8) ◽  
pp. 1289-1299
Author(s):  
Daquan Zhang ◽  
Hanxue Yang ◽  
Xiaohui Li ◽  
ShiLin Chen ◽  
Lixin Gao ◽  
...  
Keyword(s):  
Dicarboxylic Acid ◽  
Aluminium Alloy ◽  
Corrosion Inhibitor ◽  
Theoretical Investigation ◽  
Inhibition Effect

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.

scholarly journals Experimental and theoretical investigation on corrosion inhibitive properties of steel rebar by a newly designed environmentally friendly inhibitor formula

RSC Advances ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 6507-6518 ◽  
Author(s):  
Lijuan Feng ◽  
Huaiyu Yang ◽  
Xin Cui ◽  
Di Chen ◽  
Guofu Li
Keyword(s):  
Corrosion Inhibitor ◽  
Theoretical Investigation ◽  
Environmentally Friendly ◽  
Steel Rebar ◽  
Hsab Theory

A new corrosion inhibitor formula was designed and the inhibitive mechanism was analyzed based on HSAB theory and the PDM model.

The inhibition effect of inorganic compounds on the corrosion of the 3003 aluminium alloy in the presence of sodium chloride

2002 ◽  
Vol 99 (2) ◽  
pp. 189-197 ◽  
Author(s):  
L. Bazzi ◽  
R. Salghi ◽  
A. Bouchtart ◽  
Z. El Alami ◽  
S. Kertit
Keyword(s):  
Sodium Chloride ◽  
Aluminium Alloy ◽  
Inorganic Compounds ◽  
Inhibition Effect

scholarly journals The Corrosion Inhibition of AA6082 Aluminium Alloy by Certain Azoles in Chloride Solution: Electrochemistry and Surface Analysis

Coatings ◽  
2019 ◽  
Vol 9 (6) ◽  
pp. 380 ◽  
Author(s):  
Klodian Xhanari ◽  
Matjaž Finšgar
Keyword(s):  
Surface Layer ◽  
Aluminium Alloy ◽  
Surface Analysis ◽  
Corrosion Inhibition ◽  
Photoelectron Spectroscopy ◽  
Secondary Ion Mass Spectrometry ◽  
Attenuated Total Reflectance ◽  
X Ray ◽  
Inhibition Effect ◽  
Secondary Ion

The corrosion inhibition effect of five azole compounds on the corrosion of an AA6082 aluminium alloy in 5 wt.% NaCl solution at 25 and 50 °C was investigated using weight loss and electrochemical measurements. Only 2-mercaptobenzothiazole (MBT) showed a corrosion inhibition effect at both temperatures and was further studied in detail, including with the addition of potassium iodide as a possible intensifier. Surface analysis of the MBT surface layer was performed by means of attenuated total reflectance Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, and time-of-flight secondary ion mass spectrometry techniques. The hydrophobicity of the MBT surface layer was also investigated.

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