Harmonic analysis of carbon dioxide corrosion

W Durnie; Roland De Marco; A Jefferson; B Kinsella

doi:10.1016/S0010-938X(01)00136-6

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Harmonic analysis of carbon dioxide corrosion

Journal article

Peer reviewed

Harmonic analysis of carbon dioxide corrosion

W Durnie, Roland De Marco, A Jefferson and B Kinsella

Corrosion Science, Vol.44(6), pp.1213-1221

2002

DOI: https://doi.org/10.1016/S0010-938X(01)00136-6

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Abstract

carbon dioxide corrosion

harmonic analysis

linear polarisation

carbon steel

corrosion

corrosion inhibitors

third harmonic currents

carbon dioxide

condition monitoring

mild steel

polarization

Harmonic analysis (HA) has been trialed as a method for the monitoring of carbon dioxide corrosion of mild steel under a variety of conditions, i.e., in the presence and absence of hydrocarbons along with corrosion inhibitors. It has been found that it is necessary to include the third harmonic current in order to obtain reliable corrosion rates by HA. A systematic error of approximately 100% was evident in a comparison of 2500 HA corrosion rates against comparable data obtained by using linear polarisation (LP) in conjunction with assumed Tafel slopes. Conversely, a correlation of recalculated LP data by using the HA determined Tafel slopes yielded comparable corrosion rates by HA and LP. This outcome suggests that HA is capable of providing a higher degree of accuracy in studies of carbon dioxide corrosion, as compared to LP, due to the former technique's ability to determine simultaneously the Tafel slopes and corrosion rates. © 2002 Elsevier Science Ltd. All rights reserved.

Details

Title: Harmonic analysis of carbon dioxide corrosion
Authors: W Durnie (Author) - Curtin University of Technology
Roland De Marco (Author) - Curtin University of Technology
A Jefferson (Author) - Curtin University of Technology
B Kinsella (Author) - Curtin University of Technology
Publication details: Corrosion Science, Vol.44(6), pp.1213-1221
Publisher: Pergamon
Date published: 2002
DOI: 10.1016/S0010-938X(01)00136-6
ISSN: 0010-938X
Organisation Unit: University of the Sunshine Coast, Queensland; Office of the Deputy Vice-Chancellor (Research and Innovation)
Language: English
Record Identifier: 99448864802621
Output Type: Journal article

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Web Of Science research areas: Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering