Hydrogen Absorption Behavior into Zn and Zn–Al Coated Steels during Corrosion in Aqueous Solutions

Tada, Eiji; Miura, Y.

doi:10.2355/isijinternational.isijint-2015-405

Cited by 19 publications

(7 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…There have been the researches that tried to measure hydrogen absorption rate of polished steels during atmospheric corrosion in air open conditions and revealed enhancement of hydrogen absorption at higher temperature and at optimum humidity. [14][15][16][17] Our research group has, on the other hand, focused on hydrogen absorption into the steels with rust layer containing salt during atmospheric corrosion, and investigated the relationship between hydrogen absorption rate and relative humidity (RH) of air at the room temperature using an Fe plate with the rust layer containing NaCl 18) or MgCl 2 . 19) As brief results, the hydrogen absorption rate had one and two peaks against RH for NaCl and MgCl 2 , respectively.…”

Section: Introductionmentioning

confidence: 99%

Hydrogen Absorption into Fe Plates with Rust Layers Containing Various MgCl2 Amounts during Atmospheric Corrosion with Controlled Humidity

2021

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Hydrogen Absorption into Fe Plates with Rust Layers Containing Various MgCl2 Amounts during Atmospheric Corrosion with Controlled Humidity

2021

View full text Add to dashboard Cite

“…Their results revealed that Na 2 SO 3 decreased the pH and corrosion potential, thus, it enhanced hydrogen absorption. Tada and Miura, 12) as well as Sakairi and Takagi 13) investigated the hydrogen absorption in Zn-plated steel during a dry-wet cyclic corrosion test after dropping NaCl and Na 2 SO 4 solutions on the steel surfaces. They observed hydrogen absorption when Zn-plate was locally destroyed.…”

Section: Introductionmentioning

confidence: 99%

Effect of Humidity of Air on Hydrogen Absorption into Fe with Rust Layer Containing MgCl2 during Atmospheric Corrosion

2021

View full text Add to dashboard Cite

An Fe plate, whose one side was electro-polished and the other covered with the rust layer containing 25.7 g•m − 2 MgCl 2 , was used as the specimen to investigate the effect of humidity on the hydrogen absorption of the plate. The specimen was subjected to an electrochemical hydrogen-absorption test during which the rusted surface was exposed to the air with controlled relative humidity (RH) and atmospheric corrosion occurred on it. When the rusted surface was subjected to dry (RH 0%)-wet (RH 27%) repeated cycle tests for 10.8 ks each, the anodic current density corresponding to the hydrogen-absorption rate was measured on the hydrogen detection surface. The maximum current density was almost independent of the cycle during the first 10 cycles, after which it decreased with an increase in the cycle, reaching almost a steady-state after about 40 cycles. After 55 cycles of the dry-wet repeated cycle test, the specimen was subjected to an electrochemical hydrogen-absorption test to obtain the relationship between the steadystate hydrogen-absorption rate and RH. Hydrogen absorption was observed at RH of about 15%, and the absorption rate increased rapidly with an increase in RH, reached a maximum at RH of about 30%, and then decreased rapidly. When RH increased beyond 40%, the absorption rate increased again, reached a maximum value at RH of 80%, and then decreased gradually. The specimen with the rust layer containing 39.8 g•m − 2 MgCl 2 also showed two peaks in the hydrogen-absorption rate versus RH plot.

show abstract

“…So far, several researchers have discussed the relationship between the corrosion potential of steel and hydrogen absorption behavior in atmospheric environments. 21,22) Tsuru et al measured the corrosion potential of steel under wet-dry cyclic conditions using a Luggin capillary connected to a silver/silver chloride (Ag/AgCl) reference electrode through a salt bridge, together with the hydrogen permeation current. 21) However, the application of this system is limited.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous Measurements of Corrosion Potential and Hydrogen Permeation Current in Atmospheric Corrosion of Steel

et al. 2019

Self Cite

View full text Add to dashboard Cite

To investigate hydrogen absorption behavior into carbon steel during corrosion in an aqueous sodium chloride (NaCl) droplet, a simultaneous measurement system of the corrosion potential, E corr and hydrogen permeation current, i per was developed using the Kelvin probe (KP) technique and the Devanathan-Stachurski (DS) method, respectively. This system outputs the interrelation between corrosion and hydrogen absorption into steel throughout the drying process of an NaCl droplet. Our results showed that hydrogen absorption into the steel occurred when the E corr shifted in less noble direction under wet conditions, and ceased at a higher potential of E corr when the steel surface dried up. Based on the results of the transients of the i per , the amount of hydrogen absorbed during the drying of the NaCl droplet increased with NaCl concentration, which was attributed to the negative shift of the E corr. Furthermore, the amount of hydrogen absorbed within one wet-dry cycle changed with the number of cycles, due to the expansion of the corroded area and the formation of iron rust.

show abstract

Hydrogen Absorption Behavior into Zn and Zn–Al Coated Steels during Corrosion in Aqueous Solutions

Cited by 19 publications

References 24 publications

Hydrogen Absorption into Fe Plates with Rust Layers Containing Various MgCl<sub>2</sub> Amounts during Atmospheric Corrosion with Controlled Humidity

Hydrogen Absorption into Fe Plates with Rust Layers Containing Various MgCl<sub>2</sub> Amounts during Atmospheric Corrosion with Controlled Humidity

Effect of Humidity of Air on Hydrogen Absorption into Fe with Rust Layer Containing MgCl<sub>2</sub> during Atmospheric Corrosion

Simultaneous Measurements of Corrosion Potential and Hydrogen Permeation Current in Atmospheric Corrosion of Steel

Contact Info

Product

Resources

About