Exfoliation corrosion of 7150 Al alloy with various tempers and its electrochemical impedance spectroscopy in EXCO solution

2009 ◽  
Vol 60 (6) ◽  
pp. 407-414 ◽  
Author(s):  
J. F. Li ◽  
Z. Q. Jia ◽  
C. X. Li ◽  
N. Birbilis ◽  
C. Cai
Keyword(s):  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Electrochemical Impedance ◽  
Al Alloy ◽  
Exfoliation Corrosion ◽  
Various Tempers

Influence of Preparation Time on Electrochemical Impedance Spectroscopy of the Dodecafluoroheptyl-propyl-trimethoxysilane SAMs on Aluminum Alloy 6061

2014 ◽  
Vol 1015 ◽  
pp. 627-630
Author(s):  
Yu Qing Wen ◽  
Wei Shang ◽  
Hui Min Meng
Keyword(s):  
Aluminum Alloy ◽  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Self Assembly ◽  
Electrochemical Impedance ◽  
Self Assembled Monolayers ◽  
Al Alloy ◽  
Preparation Time ◽  
Assembled Monolayers ◽  
Different Temperatures

The self-assembly membranes (the SAMs) was prepared on aluminum alloy at three different temperatures. The electrochemical properties of Al alloy with SAMs and bare Al alloy were investigated by electrochemical impedance spectroscopy in a 3.5wt. % NaCl solution. The measured EIS data was simulated by an equivalent circuit. The results demonstrated that the Impedance value of 1 h preparation time was greater than the other time. To illustrate, with the preparation time was long, they have not better the performance of self-assembled monolayers.

Exfoliation Corrosion Behavior of 2524 Aluminum Alloy

2007 ◽  
Vol 546-549 ◽  
pp. 1159-1162 ◽  
Author(s):  
Sheng Yang ◽  
Dan Qing Yi ◽  
Su Juan Yao ◽  
Ya Ping Hou
Keyword(s):  
Aluminum Alloy ◽  
Electron Microscope ◽  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Hydrogen Evolution ◽  
Corrosion Behavior ◽  
Electrochemical Impedance ◽  
Exfoliation Corrosion ◽  
Corrosion Kinetics ◽  
Transmission Electron

The exfoliation corrosion behavior of 2524 aluminum alloy was studied by Transmission Electron Microscope (TEM), hydrogen evolution and Electrochemical impedance spectroscopy (EIS) . The results showed that 2524 aluminum alloy was very susceptible to exfoliation corrosion and the exfoliation corrosion appeared after 24 h. EIS could better explain the exfoliation corrosion than hydrogen evolution. Exfoliation corrosion kinetics included accelerated formation of pitting, quick development of pitting, retarded formation of exfoliation and steady development of exfoliation.

Exfoliation corrosion of aluminum alloy AA7075 examined by electrochemical impedance spectroscopy

2004 ◽  
Vol 55 (1) ◽  
pp. 18-23 ◽  
Author(s):  
F.-H. Cao ◽  
Z. Zhang ◽  
J.-F. Li ◽  
Y.-L. Cheng ◽  
J.-Q. Zhang ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Electrochemical Impedance ◽  
Exfoliation Corrosion
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