Modeling of Hydrogen Diffusion in Slow Strain Rate (SSR) Testing of Notched Samples

Andreas Drexler*, Josef Domitner, Christof Sommitsch

*Korrespondierende/r Autor/-in für diese Arbeit

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in Buch/BerichtBegutachtung


Macroscopic testing of the hydrogen embrittlement (HE) resistivity of ultra and advanced high-strength steels is still a difficult task. Different testing procedures are recommended in literature, such as the slow strain rate (SSR) test, the constant load (CL) test, or the incremental step load (ISL) test. Nevertheless, a direct comparison of the results of the different testing procedures is challenging and the influence of the microstructure is not well understood. Therefore, the present work contributes to a deeper understanding of the role of internal hydrogen diffusion and trapping at microstructural defects during SSR testing of notched samples using physical reasonable diffusion-mechanical finite element (FE) simulations. The modeling approach allows a detailed study of the role of macroscopic strength and multiple trapping sites on the local hydrogen accumulation at the notch.

TitelAdvances in Hydrogen Embrittlement Study
Redakteure/-innenVladimir A. Polyanskiy, Alexander K. Belyaev
Herausgeber (Verlag)Springer
ISBN (elektronisch)978-3-030-66948-5
ISBN (Print)978-3-030-66947-8
PublikationsstatusVeröffentlicht - 2021


NameAdvanced Structured Materials


  • Hydrogen
  • Embrittlement

ASJC Scopus subject areas

  • Werkstoffwissenschaften (insg.)

Fields of Expertise

  • Advanced Materials Science
  • Mobility & Production


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