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Use of Statistical Analysis Methods for Estimating the Reliability of First-Year Carbon Steel and Zinc Corrosion Loss Predictions Calculated Using Dose-Response Functions

  • Yu. M. Panchenko
  • A. I. MarshakovEmail author
  • I. V. Bardin
  • A. V. Shklyaev
PHYSICOCHEMICAL PROBLEMS OF MATERIALS PROTECTION
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Abstract

The following parameters have been used to estimate the reliability of predicted first-year corrosion losses of carbon steel and zinc (\(K_{1}^{{{\text{pr}}}}\)): the standard determination coefficient \(R_{{{\text{st}}}}^{2}\) according to ASTM G 16; statistical indicators such as SMAPE and MAPE; generalized determination coefficients; confidence angle. The experimental data on corrosion losses of carbon steel and zinc (\(K_{1}^{{{\text{exp}}}}\)) and the atmosphere corrosivity parameters were taken from the UN/ECE international program and Russian program. The \(K_{1}^{{{\text{pr}}}}\) values were calculated using various dose-response functions. It is not recommended to use the standard determination coefficient \(R_{{{\text{st}}}}^{2}\) in the y = \(K_{1}^{{{\text{pr}}}},\)x = \(K_{1}^{{{\text{exp}}}}\) coordinates.

Keywords:

carbon steel zinc modeling studies atmospheric corrosion 

Notes

CONFLICT OF INTEREST

The authors declare that they have no conflicts of interest.

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Copyright information

© Pleiades Publishing, Ltd. 2019

Authors and Affiliations

  • Yu. M. Panchenko
    • 1
  • A. I. Marshakov
    • 1
    Email author
  • I. V. Bardin
    • 1
  • A. V. Shklyaev
    • 2
  1. 1.Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of SciencesMoscowRussia
  2. 2.Moscow State UniversityMoscowRussia

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