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February 9, 2026SHILAP Revista de lepidopterologíaOpen Access

Electromagnetic material characteristics of steel grades used in continuous hot-dip galvanization and their impact on the coating thickness estimation bias in eddy current testing

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Authors

MKMartin KollDWDaniel WöckingerCDC. Dobler

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Overview

Examines how material characteristics affect coating thickness estimation in galvanized steel, suggesting improvements for accuracy.

Key Points

  • The aim is to evaluate how magnetic nonlinearity in steel grades affects coating thickness estimation using eddy current testing.
  • Utilized multi-frequency model-based estimation for testing.
  • Conducted finite element analyses for quantifying estimation bias.
  • Characterized electromagnetic properties using van der Pauw method and measurements of ring-shaped specimens.
  • Identified systematic errors in thickness estimation for nonlinear magnetic substrates.
  • Provided insights into the worst-case estimation bias for various steel grades.
  • Improved accuracy in eddy current testing through knowledge of material impacts.

Cite This Study

Koll et al. (2026) studied this question.

synapsesocial.com/papers/698979a6f0ec2af6756e77b3https://doi.org/10.1063/9.0000969
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