ESTIMATION OF THE QUANTITATIVE UNCERTAINTY FOR THE CORROSION POTENTIAL AND CORROSION CURRENT DENSITY

1 PIETRASZEK Jacek
Co-authors:
2 RADEK Norbert 3 SCENDO Mieczysław 4 STASZEWSKA-SAMSON Katarzyna 5 OSOCHA Przemysław
Institutions:
1 Cracow University of Technology, Kraków, Poland, EU, jacek.pietraszek@mech.pk.edu.pl
2 Kielce University of Technology, Kielce, Poland, EU, norrad@tu.kielce.pl
3 Jan Kochanowski University in Kielce, Kielce, Poland, EU, mieczyslaw.scendo@ujk.edu.pl
4 Jan Kochanowski University in Kielce, Kielce, Poland, EU
5 Cracow University of Technology, Kraków, Poland, EU, przemyslaw.osocha@mech.pk.edu.pl
Conference:
27th International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, May 23rd - 25th 2018
Proceedings:
Proceedings 27th International Conference on Metallurgy and Materials
Pages:
1204-1209
ISBN:
978-80-87294-84-0
ISSN:
2694-9296
Published:
24th October 2018
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
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Abstract

This paper briefly describes how to estimate numerically the quantitative uncertainty of potentiodynamic polarization curves obtained from a charge transfer controlled reaction in the case of working electrodes made from C45 steel with specific coatings (WC-Co, WC-Co-Al2O3 and a reference without coatings). The processed dataset was created during a real physicochemical experiment, but potentiostat/galvanostat transformed the dataset of measurements into parameters of Tafel’s lines without uncertainty estimation. The Monte Carlo simulation with resampling (bootstrap approach) was used to estimate confidence intervals of these parameters.

Keywords: Uncertainty, quantitative estimation, corrosion potential, corrosion current density, bootstrap
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