In situ 2D mapping of hydrogen entry into an Fe sheet under a droplet of NaCl solution using a hydrogenochromic sensor

H Kakinuma, S Ajito, T Hojo, M Koyama… - International Journal of …, 2022 - Elsevier
The distribution of hydrogen entering an Fe sheet under a droplet of NaCl solution was
successfully visualized using a hydrogenochromic sensor consisting of a polyaniline layer …

The promotion effect of aluminium ion on hydrogen entry into steel during atmospheric corrosion

X Han, M Sakairi - Electrochimica Acta, 2023 - Elsevier
The effect of Al 3+ on the hydrogen permeation behaviour of steel during cyclic corrosion
was investigated under AlCl 3 droplets with varying Al 3+ concentrations. The permeated …

Hydrogen entry into steel under corrosion products

D Rudomilova, T Prošek, M Ström - Corrosion, 2021 - meridian.allenpress.com
Hydrogen entry into high-strength steel after local sodium chloride predeposition and during
exposure to humid air was studied using scanning Kelvin probe. Two regions with different …

[HTML][HTML] Mechanism of local hydrogen entry into Fe sheets induced by atmospheric corrosion: Significance of potential, pH, and rust layer thickness

H Kakinuma, S Hiromoto, T Hojo, S Ajito, M Koyama… - Corrosion …, 2024 - Elsevier
Local hydrogen entry under a NaCl droplet on Fe sheets was analysed by employing a
hydrogenochromic sensor and electrochemical hydrogen permeation tests. Large …

Role of hygroscopic chloride salts on corrosion performance and hydrogen absorption of steel under cyclic wet-dry conditions

X Han, M Sakairi - Corrosion Science, 2024 - Elsevier
The corrosion morphology of steel under aqueous NaCl, MgCl 2, and ZnCl 2 droplets and
the corresponding hydrogen permeation behaviour were investigated using surface …

Respirometry, a new approach for investigation of the relationship between corrosion-induced hydrogen evolution and its entry into metallic materials

N Macháčková, D Rudomilova, T Prošek - International Journal of …, 2024 - Elsevier
Cathodic processes in initial stages of atmospheric corrosion of rolled zinc and bare, Al–Si
and Zn–Fe coated press hardened steel were studied. A ratio between hydrogen evolution …

Synergistic effect of solid state hydrogen and cold work pretreatment on oxide films grown on 316L stainless steel during short term immersion in deaerated high …

T Cui, J Ma, K Zhang, Z Lu, Y Tang, X Xu… - Journal of The …, 2020 - iopscience.iop.org
The properties of the oxide films formed on solution-annealed and cold-worked 316L
stainless steel (SS) specimens with and without charged hydrogen in deaerated pressurized …

Critical Assessment of the Effect of Atmospheric Corrosion Induced Hydrogen on Mechanical Properties of Advanced High Strength Steel

D Rudomilova, T Prošek, I Traxler, J Faderl… - Metals, 2020 - mdpi.com
Hydrogen absorption into steel during atmospheric corrosion has been of a strong concern
during last decades. It is technically important to investigate if hydrogen absorbed under …

Simultaneous measurements of polarization resistance and hydrogen permeation current of iron in an aqueous NaCl droplet

S Ajito, E Tada, A Ooi, A Nishikata - ISIJ International, 2021 - jstage.jst.go.jp
In this study, a Kelvin probe (KP) technique combined with the Devanathan-Stachurski
electrochemical hydrogen permeation method was applied for simultaneous measurements …

Effects of ammonium thiocyanate and pH of aqueous solutions on hydrogen absorption into iron under cathodic polarization

S Ajito, T Hojo, M Koyama, E Akiyama - ISIJ International, 2021 - jstage.jst.go.jp
To evaluate the susceptibility of steels to hydrogen embrittlement, it must be hydrogen
charged and have its hydrogen content controlled before any mechanical testing. In this …