Effect of Environmental Factors on Hydrogen Absorption into Steel Sheet under a Wet-dry Cyclic Corrosion Condition

Ootsuka, Shinji; Tada, Eiji; Ooi, Azusa; Nishikata, Atsuhiro

doi:10.2355/isijinternational.isijint-2020-561

Cited by 6 publications

(1 citation statement)

References 24 publications

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“…It has been reported that the amount of absorbed hydrogen into a steel sheet during corrosion varies depending on corrosion factors such as temperature, humidity and chloride deposition. 10) Ootsuka et al 11,12) investigated hydrogen absorption into cold-rolled steel sheets in an automotive driving environment using a hydrogen absorption monitoring system 13,14) which can measure the amount of diffusive hydrogen being absorbed into steel sheets electrochemically.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Relationship between Corrosion and Hydrogen Entry Behavior of Electro-Galvanized Steel under Atmospheric Environment

Hata,

Matsuda,

Ootsuka

2023

Mater. Trans.

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The effect of corrosion status of zinc coating on the hydrogen absorption behavior was investigated. Dry-wet corrosion test was conducted after applying NaCl solution to the zinc coated steel sheets. The permeating hydrogen during the corrosion test was measured by electrochemical technique. It was found that the hydrogen permeation was not observed at early stage of corrosion while significant hydrogen permeation was observed at middle stage of corrosion. Then, the hydrogen permeation decreased gradually at later stage of corrosion. In order to clarify the mechanism of this behavior, surface morphologies of corroded specimens were analyzed by Electron Probe Micro Analyzer. It was found that the hydrogen permeation was observed when the steel substrate was partially appeared, indicating that galvanic corrosion is related to the hydrogen permeation.

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