Wavelet analysis of electrochemical noise measurements during corrosion of austenitic and superduplex stainless steels in chloride media
Wavelet analysis of electrochemical noise measurements during corrosion of austenitic and superduplex stainless steels in chloride media
A wavelet variance analysis procedure has been used for the characterisation of electrochemical noise measurements (ENM) made during corrosion of three grades of austenitic and superduplex stainless steels, with varying sulphur contents, when exposed to chloride media. The resulting electrochemical noise has been interpreted in terms of coupled current and free corrosion potential measurements. The wavelet variance exponent has been used to characterise the behaviour of the signals. It is shown that the wavelet analysis technique is able to discriminate between various corrosion processes covering a wide range of ENM.
stainless steel, electrochemical noise, inclusion, passive films, wavelet analysis
97-122
Wharton, J.A.
965a38fd-d2bc-4a19-a08c-2d4e036aa96b
Wood, R.J.K.
d9523d31-41a8-459a-8831-70e29ffe8a73
Mellor, B.G.
2b13b80f-880b-49ac-82fe-827a15dde2fe
2003
Wharton, J.A.
965a38fd-d2bc-4a19-a08c-2d4e036aa96b
Wood, R.J.K.
d9523d31-41a8-459a-8831-70e29ffe8a73
Mellor, B.G.
2b13b80f-880b-49ac-82fe-827a15dde2fe
Wharton, J.A., Wood, R.J.K. and Mellor, B.G.
(2003)
Wavelet analysis of electrochemical noise measurements during corrosion of austenitic and superduplex stainless steels in chloride media.
Corrosion Science, 45 (1), .
(doi:10.1016/S0010-938X(02)00140-3).
Abstract
A wavelet variance analysis procedure has been used for the characterisation of electrochemical noise measurements (ENM) made during corrosion of three grades of austenitic and superduplex stainless steels, with varying sulphur contents, when exposed to chloride media. The resulting electrochemical noise has been interpreted in terms of coupled current and free corrosion potential measurements. The wavelet variance exponent has been used to characterise the behaviour of the signals. It is shown that the wavelet analysis technique is able to discriminate between various corrosion processes covering a wide range of ENM.
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Published date: 2003
Keywords:
stainless steel, electrochemical noise, inclusion, passive films, wavelet analysis
Identifiers
Local EPrints ID: 22074
URI: http://eprints.soton.ac.uk/id/eprint/22074
ISSN: 0010-938X
PURE UUID: 3ca4a818-7c77-40a6-ad0c-b5fe14fc2118
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Date deposited: 21 Mar 2006
Last modified: 16 Mar 2024 02:59
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Author:
B.G. Mellor
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