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MM: Fachverband Metall- und Materialphysik
MM 19: Poster Session
MM 19.20: Poster
Dienstag, 10. März 2026, 18:00–20:00, P5
In-depth Study of Hydrogen Permeation through Zinc Coated Steel — •Tatjana Ott1,2, Elahe Akbari1, Christoph Cobet2, Jiri Duchoslav2, Heiko Groiss2, Andreas Muhr3, Reza Sharif3, Thomas Steck3, Laura Mears1, and Markus Valtiner1 — 1Institute of Applied Physics, Vienna University of Technology, 1040 Vienna, Austria — 2Johannes Kepler University Linz, Altenberger Straße 69, 4040 Linz, Austria — 3voestalpine Stahl GmbH, 4020 Linz, Austria
Objectives: Hydrogen permeation measurements are used to obtain information such as diffusion coefficients and trap sites, as well as to investigate corrosion processes. Studying the hydrogen permeation through zinc coated steel sheets provides insights into the mechanisms of cathodic hydrogen generation and the protective capabilities of different zinc coatings. Utilizing samples prepared with an optimized sample preparation protocol, hydrogen permeation through zinc coated ultra-high-strength steel (UHSS) was investigated.
Results and Conclusions: The electrochemical process for the palladium deposition on steel was optimized, resulting in an increased sensitivity for hydrogen permeation. Different zinc coatings were compared to determine the protective abilities of the coating as well as different types of entry side reactions. Results showed that the zinc coatings provided significant protection against hydrogen permeation. Overall, hydrogen permeation measurements provided valuable insights regarding both the reactions taking place at different coating types and their protective abilities.
Keywords: Hydrogen; Zinc; Ultra-High-Strength Steel; Hydrogen Permeation Measurement