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Statistics of Pit Initiation: Analysis of Current Transients During Passive Film Breakdown

Published online by Cambridge University Press:  28 February 2011

Ugo Bertocci ,
S. Leigh ,
A. C. Van Orden  and
G. Yang
Ugo Bertocci
Affiliation:
Metallurgy Division, National Bureau of Standards, Gaithersburg,MD 20899
S. Leigh
Affiliation:
Metallurgy Division, National Bureau of Standards, Gaithersburg,MD 20899
A. C. Van Orden
Affiliation:
Metallurgy Division, National Bureau of Standards, Gaithersburg,MD 20899
G. Yang
Affiliation:
Statistical Engineering Division, National Bureau of Standards, MD 20899
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Abstract

During the incubation period preceding pitting, current fluctuations indicate the beginning of the breakdown of the passive film. The charac- teristics of these current transients are being examined as a possible way to predict pitting. Stochastic models applied to the breakdown process have been proposed, and in order to test how well they account for the experi- mental results, various forms of processing of the current vs. time records are necessary. This paper describes the experimental data-taking methods, the processing routines so far developed for the statistical analysis of the data, and compares the experimental results with computer simulations based on a stochastic model.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 84: Symposium L – Scientific Basis for Nuclear Waste Management X , 1986 , 251
Copyright
Copyright © Materials Research Society 1987

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References

1. Shibata, T., Takeyama, T., Corrosion, 33, 243 (1977); Nihon Kinzoku Gakkaishi, 42, 74 (1978).Google Scholar
2. Bertocci, U., Ye, Y-X., J. Electrochem. Soc., 131, 1011 (1984) R. Holliger, H. B6hni, Computer Aided Acquisition and Analysis of Corrosion Data, M. W. Kendig, U. Bertocci, J. E. Strutt, eds, (The Electrochemical Society, Pennington, NJ 1985) pp 200-209. C. Gabrielli, M. Keddam, M. Krarti, C. Pallotta, Nihon Kinzoku Gakkaishi p. 210–220.Google Scholar
3. Bertocci, U., Koike, M., Leigh, S., Qiu, F., Yang, G., J. Electrochem. Soc., 133, 1782, (1986).CrossRefGoogle Scholar
4. Velleman, P. F., Hoaglin, D. C., “Application, Basics and Computing of Exploratory Data Analysis”, (Duxbury Press, Boston, MA 1980) p. 171.Google Scholar