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Corrosion and Materials Degradation, Volume 5, Issue 2

June 2024 - 7 articles

Cover Story: Steel pipelines are susceptible to hydrogen embrittlement in gaseous hydrogen environments. Al2O3 inclusions, commonly found in pipeline steels, serve as sites where H2 molecules dissociate into H atoms H2 molecules by a dissociative adsorption mechanism. Density functional theory modeling shows that, under pipeline operating conditions, the hydrogen dissociative adsorption is thermodynamically favorable at the Al2O3/Fe interface. H atoms tend to form stable adsorption configurations more readily on the Fe side, rather than on the Al2O3 side, of the interface. The presence of impurity gases like O2 and CH4 can inhibit the dissociative adsorption of hydrogen at these inclusions. Specifically, O2 exhibits a preference for dissociative adsorption over CH4 in this context. View this paper
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Articles (7)

  • Review
  • Open Access
4 Citations
3,855 Views
51 Pages

Review of the Modelling of Corrosion Processes and Lifetime Prediction for HLW/SF Containers—Part 2: Performance Assessment Models

  • Fraser King,
  • Miroslav Kolàř,
  • Scott Briggs,
  • Mehran Behazin,
  • Peter Keech and
  • Nikitas Diomidis

The disposal of high-level radioactive waste (HLW) and spent nuclear fuel (SF) presents a unique challenge for the prediction of the long-term performance of corrodible structures since the HLW/SF canisters are expected, in some cases, to have lifeti...

  • Article
  • Open Access
4 Citations
3,031 Views
13 Pages

This paper addresses the interplay between electrical fields in the human body and the corrosion behavior of Ti-6Al-4V alloy, a prevalent orthopedic material. The study investigates the impact of alternative electrical signals at different frequencie...

  • Article
  • Open Access
2 Citations
2,811 Views
11 Pages

With escalating global regulatory pressure for countries to adhere to emission laws, repurposing existing natural gas pipelines for hydrogen-based commodities stands to be an economical solution. However, the effects of hydrogen embrittlement must be...

  • Article
  • Open Access
1 Citations
4,598 Views
24 Pages

An impedance model based on the Volmer–Heyrovsky–Tafel mechanism was developed to study the kinetics of the hydrogen evolution reaction on polycrystalline gold electrodes at moderate overpotentials in aqueous H2SO4 (0.5 and 1.0 M) solutio...

  • Article
  • Open Access
1 Citations
3,166 Views
17 Pages

In-Situ AFM Studies of Surfactant Adsorption on Stainless Steel Surfaces during Electrochemical Polarization

  • Julian Cremer,
  • Sinan Kiremit,
  • Heinz Jürgen Klarhorst,
  • Alix Gaspard,
  • Karsten Rasim,
  • Thomas Kordisch,
  • Andreas Hütten and
  • Dario Anselmetti

Corrosion inhibitors are one of the best practices to prevent the far-reaching negative impacts of corrosion on ferrous alloys. A thorough understanding of their corrosion-inhibiting effects is essential for a sustainable economy and environment. Ani...

  • Article
  • Open Access
8 Citations
2,964 Views
24 Pages

Hydrogen embrittlement (HE) of steel pipelines in high-pressure gaseous environments is a potential threat to the pipeline integrity. The occurrence of gaseous HE is subjected to associative adsorption of hydrogen molecules (H2) at specific “ac...

  • Feature Paper
  • Review
  • Open Access
11 Citations
6,069 Views
76 Pages

Review of the Modelling of Corrosion Processes and Lifetime Prediction for HLW/SF Containers—Part 1: Process Models

  • Fraser King,
  • Miroslav Kolàř,
  • Scott Briggs,
  • Mehran Behazin,
  • Peter Keech and
  • Nikitas Diomidis

The disposal of high-level radioactive waste (HLW) and spent nuclear fuel (SF) presents a unique challenge for the prediction of the long-term performance of corrodible structures since HLW/SF containers are expected, in some cases, to have lifetimes...

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Corros. Mater. Degrad. - ISSN 2624-5558