Investigating the origins of the 'double rise' shape in hydrogen permeation transients on pure iron
Source abstract
Abstract
This study delves into the underlying causes of the atypical 'double rise' shape observed in hydrogen permeation rising transients on pure iron and low alloy steels. Electrochemical permeation experiments on pure iron reveal a fast initial rise, a short pseudo-plateau, and a slow second rise. Similar patterns emerge in the decaying transients. The micro-porosity present in material appears to act as reversible traps, affecting hydrogen diffusion. Surface damage, confirmed by SEM analysis, exacerbates the issue. Utilizing numerical simulations, an FEM model effectively replicates the 'double rise' behavior, attributed to limited recombination/dissociation kinetics at bulk-cavity interfaces. Overall, micro-porosity is identified as the primary factor behind this unique permeation curve shape.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Hydrogen embrittlement and corrosion behaviors in metals · Corrosion Behavior and Inhibition · Nuclear Materials and Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (29)
Show source-provided references
1. Effect of nickel equivalent on hydrogen gas embrittlement of austenitic stainless steels based on type 316 at low temperatures10.1016/j.actamat.2008.03.022 ↗
2. Hydrogen embrittlement (HE) phenomena and mechanisms
3. Ab initio based understanding of the segregation and diffusion mechanisms of hydrogen in steels10.1007/s11837-014-1055-3 ↗
4. Hydrogen trapping and embrittlement in high-strength Al alloys10.1038/s41586-021-04343-z ↗
5. The role of κ-carbides as hydrogen traps in high-Mn steels10.3390/met7070264 ↗
6. Determination of the hydrogen fugacity during electrolytic charging of steel10.1016/j.corsci.2014.06.033 ↗
7. Hydrogen diffusion and trapping in a steel containing porosities10.1016/j.corsci.2022.110208 ↗
8. Hydrogen permeation in metals as a function of stress, temperature and dissolved hydrogen concentration
9. Use of the Devanathan–Stachurski cell to measure hydrogen permeation in aluminum alloys10.1016/S0010-938X(01)00103-2 ↗
10. The influence of an oxide layer on hydrogen permeation through steel10.1016/0010-938X(96)00045-5 ↗
11. Methodology of the electrochemical hydrogen permeation test: a parametric evaluation10.1016/j.ijhydene.2023.04.211 ↗
12. Electrochemical methods for determining diffusion coefficient of hydrogen in steels10.1179/1743278215Y.0000000017 ↗
13. F. Bolzoni, E. Fallahmohammadi, G. Re, G. Fumagalli, M. Ormellese, L. Lazzari, Electrochemical Investigation of Hydrogen Diffusion in Pipeline Steels, in: NACE - Int. Corros. Conf. Ser., NACE International, Milano, Italy, 2013. https://www.researchgate.net/publication/236325687.
14. The hydrogen evolution kinetics and hydrogen entry into a-iron10.1149/1.2423335 ↗
15. Coefficient de diffusion de l’hydrogène cathodique dans le fer de zone fondue et le fer Armco, Comptes Rendus Hebd
16. Crack and blister initiation and growth in purified iron due to hydrogen loading10.1016/j.actamat.2016.05.034 ↗
17. de L’hydrogene Cathodique dans le fer par detection electrochimique
18. Perméabilité de l’hydrogène cathodique à travers des membranes de fer de zone fondue et de fer industriel, Comptes Rendus Hebd
19. Modelling of hydrogen diffusion in a steel containing micro-porosity. Application to the permeation experiment10.1016/j.ijhydene.2022.12.208 ↗
20. Formation of porosity during solidification of cast metals
21. Shrinkage porosity in steel sand castings: formation, classification and inspection
22. Formation of shrinkage porosity during solidification of steel: numerical simulation and experimental validation10.1088/1757-899X/143/1/012035 ↗
23. The adsorption and diffusion of electrolytic hydrogen in palladium
24. The Time Lag in Diffusion10.1021/j150547a018 ↗
25. Barrer · 1951
26. Modelling and simulation of hydrogen redistribution in a heterogeneous alloy during the cooling down to 200 °C10.1016/j.ijhydene.2017.03.095 ↗
27. Modelling of hydrogen induced pressurization of internal cavities10.1016/j.ijhydene.2017.04.106 ↗
28. Diffusion Coefficient of Hydrogen in Pure Iron between 230 and 300 K10.2320/matertrans1960.20.349 ↗
29. Measurement of hydrogen permeation in α-iron: analysis of the experiments