Multichannel Pitting Corrosion Testing Aparatus and its Applications

Pitting Corrosion Monitoring Using Acoustic Emission

Detecting pitting corrosion and its severity using wavelet entropy in electrochemical noise measurement

Entropy as a measure of uncertainty was used to represent the results of the wavelet technique in electrochemical noise analysis. The experimental signals were obtained by recording the electrochemical potential and current noise of 7075 aluminum alloy in 3.5% NaCl solution. The electrochemical potential and current noise were decomposed into 16 levels using Daubechies wavelets. Wavelet output ...

Corrosion pitting and environmentally assisted small crack growth.

In many applications, corrosion pits act as precursors to cracking, but qualitative and quantitative prediction of damage evolution has been hampered by lack of insights into the process by which a crack develops from a pit. An overview is given of recent breakthroughs in characterization and understanding of the pit-to-crack transition using advanced three-dimensional imaging techniques such a...

Ultrasonic Detection and Measuring of Isolated or Pitting Corrosion (ipc)

AS2542.3 (Determination of Thickness – Use of Ultrasonic Testing) states: “This standard specifies six methods for determination of thickness of material based on the use of ultrasonic pulse-echo principals where the scanning and reflecting surfaces are substantially parallel”. In many cases, the principals and procedures used in AS2452.3 are not applicable for the detection and measuring of is...

LabVIEW 2010 Computer Vision Platform Based Virtual Instrument and Its Application for Pitting Corrosion Study

A virtual instrumentation (VI) system called VI localized corrosion image analyzer (LCIA) based on LabVIEW 2010 was developed allowing rapid automatic and subjective error-free determination of the pits number on large sized corroded specimens. The VI LCIA controls synchronously the digital microscope image taking and its analysis, finally resulting in a map file containing the coordinates of t...