Numerical interpretation to differentiate hydrogen trapping effects in iron alloys in the Devanathan-Stachurski permeation cell

Lorenzo Vecchi, Darja Pecko, Mesfin Haile Mamme, Dries Van Laethem, Tom Depover, Emilie Van den Eeckhout, Nils Van den Steen, Berk Ozdirik, Kim Verbeken, Yves Van Ingelgem, Johan Deconinck, Herman Terryn

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The Devanathan-Stachurski-cell is the most commonly used electrochemical technique for the investigation of the hydrogen trapping properties of a material. In this set-up, a flux of hydrogen atoms diffuses through a metal membrane under study. The atoms are subjected to the heterogeneities naturally present in the lattice of the metal, acting as traps. This matter influences the diffusion of hydrogen, which is strongly microstructure related. In this paper, we apply a numerical model to different iron-alloys to determine the hydrogen trapping parameters characterizing the materials. We highlight the complexity of the hydrogen trapping mechanism which needs to be further investigated.

Original languageEnglish
Pages (from-to)231-238
Number of pages8
JournalCorrosion Science
Volume154
DOIs
Publication statusPublished - 1 Jul 2019

Keywords

  • Devanathan-stachurski cell
  • FEM modelling
  • Hydrogen embrittlement

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