Frequency Domain Analysis and Application of Electrochemical Noise of X80 Pipeline Steel
In this paper, frequency domain analysis and application of electrochemical noise of X80 Pipeline Steel in Xinzhou Soil is researched. In the frequency data analysis of electrochemical noise, there are three characteristic parameters. It can be seen from experiments that X80 steel buried in Xinzhou soil with14% moisture content shows that metal corrosion is still not change much. And, it can be inferred that corrosion of X80 pipeline steel in Xinzhou soil with 18% moisture, corrosion is uniform while the morphology is not the uniform , it is the morphology that some pitting are connecting into the film. In Xinzhou soil with 22% moisture, potential PSD figure is different after corrosion happened for one day and three days. Thus, the corrosion type can be determined by high-frequency slope of the linear segment of potential PSD figure.
Z.S. Liu, L.P. Xu, X.D. Liang, Z.H. Wang and H.M. Zhang
P. X. Feng et al., "Frequency Domain Analysis and Application of Electrochemical Noise of X80 Pipeline Steel", Advanced Materials Research, Vol. 1015, pp. 659-662, 2014