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October 10, 2025

A Comparison of Hydrogen Embrittlement Evaluation Methods for 1100 MPa Steels for Fastener Applications

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Authors

MKMichelle KentEMEmmanuel De MoorKFKip O. Findley

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Overview

This analysis compares hydrogen embrittlement methods in 1100 MPa steels, highlighting notched specimens' sensitivity to hydrogen during testing.

Key Points

  • Notched specimens show increased sensitivity to hydrogen embrittlement compared to smooth specimens, indicating a risk in fastener applications.
  • Results showed that hydrogen charging levels significantly affect failure rates, suggesting careful monitoring of pre-charging time.
  • Evaluation methods included slow strain rate tests and constant load tests on different steel compositions with varying hydrogen concentrations.
  • The study highlights the complex relationship between hydrogen diffusion and mechanical loading, affecting failure dynamics under various conditions.

Cite This Study

Kent et al. (2025) studied this question.

synapsesocial.com/papers/68e8619c7ef2f04ca37e436fhttps://doi.org/10.1115/pvp2025-154665
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