A New Information Method to Determinate Corrosion Types from Electrochemical Noise

被引：0
|
作者：
Jian Li
Huan-Jun Zheng
Ye Zheng
Wei-Kang Kong
Ke Wang
机构：
[1] Tianjin University,State Key Laboratory of Precision Measuring Technology and Instrument
[2] Tianjin University,School of Materials Science and Engineering
来源：
Acta Metallurgica Sinica (English Letters) | 2015年 / 28卷
关键词：
Entropy rate; Stainless steel; Corrosion; Electrochemical behavior;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Electrochemical noise data in the presence of different corrosion types were analyzed. A correlation between the corrosion type of the observed noise and the entropy rate was recognized. A sequence was transformed from each set of original electrochemical noise signal, then the Markov process M and stationary distribution μ were calculated. Finally, entropy rate of each sequence was obtained by the definition. From the entropy rate, it has been observed that local corrosion showed a lower entropy rate, while uniform corrosion showed a higher entropy rate.
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页码：449 / 453
页数：4
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