Author： Callow L. M. Richardson J. A. Dawson J. L.
Publisher： Maney Publishing
ISSN： 0007-0599
Source： British Corrosion Journal, Vol.11, Iss.3, 1976-01, pp. : 132-139
Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.
Abstract
The various fundamental and experimental factors which contribute to inaccuracy in, or even invalidate, the polarisation resistance technique of monitoring corrosion rates, are reviewed. The factors include deviations from linearity of polarisation data in the vicinity of the corrosion potential, polarisation data obtained close to reversible potentials, the presence of appreciable IR drops, failure to achieve steady state during polarisation, time-dependent corrosion potentials and Tafel slopes, electrode perturbation, and probe element differences resulting from localised corrosion. An attempt is made to assess the various factors in terms of the possible magnitudes of errors introduced into calculated corrosion rates.
Related content
Access to resources
Recommend
‘Corrosion data from polarisation measurements’;
British Corrosion Journal, Vol. 26, Iss. 1, 1991-01 ,pp. :