期刊
CORROSION SCIENCE
卷 120, 期 -, 页码 251-256出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2017.02.015
关键词
carbon steel; weight loss; atmospheric corrosion; Kolmogorov-Sinai entropy; Image processing
资金
- Major State Basic Research Development Program (973 Program) [2014CB046805]
- National Natural Science Foundation of China [51131007, 51671144, 51471117]
- Key Project of Tianjin Natural Science Foundation [13JCZDJC29500]
- CAS Key laboratory of Nuclear Materials and Safety Assessment (Institute of Metal Research, Chinese Academy of Sciences, China) [2016NMSAKF02]
Fuzzy Kolmogorov-Sinai (K-S) entropy was used to characterize the irregularity of the spatial information distribution in a corrosion image. The fuzzy K-S entropy was measured for horizontal and vertical orientations of corrosion images of steel samples exposed to a marine atmosphere over 191 days. The fuzzy K-S entropy for horizontal and vertical orientations decreased as the corrosion propagated. A relationship between the fuzzy K-S entropy and the weight loss in the steel sample can be presented with a linear mathematical expression. Fuzzy K-S entropy was found to be a semiquantitative and fast method to quantify atmospheric corrosion. (C) 2017 Elsevier Ltd. All rights reserved.
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