In:
Corrosion, Association for Materials Protection and Performance (AMPP), Vol. 30, No. 3 ( 1974-03-01), p. 92-96
Abstract:
The errors due to the use of the approximation Icorr′ = B′ΔI, where B′ depends on anodic and cathodic Tafel slopes, in commercial corrosion current meters is shown to be due to the nonlinearity of the current-potential curve in the vicinity of the corrosion potential. These errors are calculated for various combinations of Tafel slopes. It is proposed to use the relationship Icorr = κΔI, where κ depends on Tafel slopes, sign, and magnitude of polarization. The values of κ are tabulated for various combinations of Tafel slopes and polarization of +10 and −10 mV. The proposed procedure leads to correct values of corrosion currents independent of the degree of nonlinearity of the polarization curve.
Type of Medium:
Online Resource
ISSN:
1938-159X
,
0010-9312
DOI:
10.5006/0010-9312-30.3.92
Language:
English
Publisher:
Association for Materials Protection and Performance (AMPP)
Publication Date:
1974
detail.hit.zdb_id:
217266-5
detail.hit.zdb_id:
2043065-6
Bookmarklink