A novel sensing technique for monitoring pitting corrosion of stainless steel type 316L

Aung, Naing Naing and Tan, Yong-Jun 2005, A novel sensing technique for monitoring pitting corrosion of stainless steel type 316L, Chiangmai journal of science, vol. 32, no. 3, pp. 521-527.

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Title A novel sensing technique for monitoring pitting corrosion of stainless steel type 316L
Author(s) Aung, Naing Naing
Tan, Yong-JunORCID iD for Tan, Yong-Jun orcid.org/0000-0002-0765-108X
Journal name Chiangmai journal of science
Volume number 32
Issue number 3
Start page 521
End page 527
Total pages 7
Publisher Chiang Mai University, Faculty of Science
Place of publication Chiang Mai, Thailand
Publication date 2005-09
ISSN 1513-489X
Keyword(s) electrochemical method
electrochemical noise
pitting corrosion
stainless steel
the wire beam electrode
Summary A novel electrochemically integrated multi-electrode array namely the wire beam electrode(WBE) in combination with noise signatures analysis has been designed to monitor pittingcorrosion of one of the best corrosion resistance ferrous alloys, stainless steel type 316L.From the direct correlation of electrochemical potential noise signatures and galvanic currentdistribution maps during pitting corrosion processes, two characteristic noise patterns wereobserved prior to stable pit formation: (i) the characteristic ‘peak’ of rapid potential transient,towards less negative direction, followed by recovery (termed noise signature I) was found tocorrelate with the disappearance of unstable anode; (ii) the characteristic noise pattern ofquick potential changes towards less negative direction followed by no recovery (termed noisesignature II) was found to correspond with the massive disappearance of minor anodes leadingto formation of highly localized major anodes in the galvanic current distribution maps.
Notes This paper was presented at Smart-Mat’04 : The International Conference on Smart Materials 2004
Language eng
Field of Research 109999 Technology not elsewhere classified
Socio Economic Objective 970110 Expanding Knowledge in Technology
HERDC Research category C3.1 Non-refereed articles in a professional journal
Persistent URL http://hdl.handle.net/10536/DRO/DU:30048525

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