Corrosion Process Monitoring Using Wavelet Analysis

2000 ◽  
Vol 39 (5) ◽  
pp. 1256-1263 ◽  
Author(s):  
X. D. Dai ◽  
R. L. Motard ◽  
B. Joseph ◽  
D. C. Silverman
Keyword(s):  
Wavelet Analysis ◽  
Process Monitoring ◽  
Corrosion Process

Study on Electrochemical Noise of N80 Steel in NaCl Solution by Wavelet Analysis and Equivalent Circuit Theory

2014 ◽  
Vol 893 ◽  
pp. 392-396
Author(s):  
Lin Zhao ◽  
Yu Zhang ◽  
Bo Wen Li ◽  
Chuang Tai ◽  
Ji Li
Keyword(s):  
Wavelet Analysis ◽  
Equivalent Circuit ◽  
Electrochemical Noise ◽  
Circuit Theory ◽  
Corrosion Process ◽  
Noise Power ◽  
Uniform Corrosion ◽  
Nacl Solution ◽  
Noise Power Spectral Density ◽  
N80 Steel

The electrochemical noise (EN) of N80 steel in NaCl solution has been studied by the wavelet and the equivalent circuit theory. Spectrum analysis showed that the corrosion data is no transient peaks, the variations of potential and current showed typical characteristics of uniform corrosion. Wavelet analysis results show that the different time energy fluctuations of different size ranges, low-level occur fluctuations repeatedly and high-level appear concave curve. Analysis shows that it is mainly due to uniform corrosion process, and the control step is diffusion process of corrosive ion. The applications of equivalent circuit analyze electrochemical noise data in theory, and describe the corrosion process by the components of potential noise and current noise power spectral density

Corrosion process monitoring by AFM higher harmonic imaging

2017 ◽  
Vol 28 (11) ◽  
pp. 114001 ◽  
Author(s):  
S Babicz ◽  
A Zieliński ◽  
J Smulko ◽  
K Darowicki
Keyword(s):  
Process Monitoring ◽  
Harmonic Imaging ◽  
Corrosion Process ◽  
Higher Harmonic
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