Degradation Process of Coated Tinplate by Phase Space Reconstruction Theory  

作　　者：石江波 夏大海 王吉会 周超 刘彦宏 

机构地区：[1]School of Materials Science and Engineering,Tianjin University [2]Department of Chemical and Materials Engineering,University of Alberta,Edmonton T6G 2V4,Canada [3]School of Foreign Languages,Hebei University of Technology

出　　处：《Transactions of Tianjin University》2013年第2期92-97,共6页天津大学学报（英文版）

基　　金：Supported by Major State Basic Research Program of China ("973" Program,No. 2011CB610505);Specialized Research Fund for the Doctoral Program of Higher Education (No. 20120032110029)

摘　　要：The degradation process of organosol coated tinplate in beverage was investigated by electrochemical noise (EN) technique combined with morphology characterization.EN data were analyzed using phase space reconstruction theory.With the correlation dimensions obtained from the phase space reconstruction,the chaotic behavior of EN was quantitatively evaluated.The results show that both electrochemical potential noise (EPN) and electrochemical current noise (ECN) have chaotic properties.The correlation dimensions of EPN increase with corrosion extent,while those of ECN seem nearly unchanged.The increased correlation dimensions of EPN during the degradation process are associated with the increased susceptibility to local corrosion.The degradation process of organosol coated tinplate in beverage was investigated by electrochemical noise （EN） technique combined with morphology characterization. EN data were analyzed using phase space recon- struction theory. With the correlation dimensions obtained from the phase space reconstruction, the chaotic behavior of EN was quantitatively evaluated. The results show that both electrochemical potential noise （EPN） and electrochemi- cal current noise （ECN） have chaotic properties. The correlation dimensions of EPN increase with corrosion extent, while those of ECN seem nearly unchanged. The increased correlation dimensions of EPN during the degradation process are associated with the increased susceptibility to local corrosion.

关 键 词：phase space reconstruction CHAOS electrochemical potential noise electrochemical current noise correlation dimension organic coating 

分 类 号：TG174.36[金属学及工艺—金属表面处理] TM715[金属学及工艺—金属学]