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Zairyo-to-Kankyo
Vol. 61 (2012), No. 6

Zairyo-to-Kankyo Vol. 61 (2012), No. 6

ONLINE ISSN:	1881-9664
PRINT ISSN:	0917-0480
Publisher:	Japan Society of Corrosion Engineering

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22 Feb. (Last 30 Days)

Zairyo-to-Kankyo Vol. 61 (2012), No. 6

Let's Learn from Biodiversity

Kimio Ito

pp. 235-

DOI:

10.3323/jcorr.61.235

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Let's Learn from Biodiversity

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Ris

Hydrogen Absorption Behavior of Steel Bar for Prestressed Concrete in a Solution of Ammonium Thiocyanate

Tomoki Doshida, Kenichi Takai, Mikiyuki Ichiba

pp. 249-256

DOI:

10.3323/jcorr.61.249

Abstract

A solution of ammonium thiocyanate is used in the FIP (Fédération International de la Précontrainte) test as a hydrogen charging method. Though this method is comparatively simple, fracture time in the FIP test and hydrogen content often differ among various testing institutes. However, the detailed hydrogen absorption behavior in the solution is still not clear. In this context, the effects of existing states of hydrogen, oxide film on the specimen surface, specific solution volume to specimen surface area, immersion time and solution temperature on the hydrogen absorption behavior of a steel bar for reinforcing prestressed concrete were investigated by immersing it in the solution. The amount of absorbed hydrogen increased with immersion time, reached its maximum, and then decreased with increasing immersion time. A main factor of the decrease in the amount of absorbed hydrogen was corrosion products, including Fe, O and S, formed on the specimen surface, since the amount of absorbed hydrogen increased again as a result of merely polishing the surface. This indicates that corrosion products formed on immersing specimens in a solution of ammonium thiocyanate strongly affect hydrogen absorption behavior. Whereas, variation of the solution, such as increase in pH, during immersion also affects slightly hydrogen absorption behavior.

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Hydrogen Absorption Behavior of Steel Bar for Prestressed Concrete in a Solution of Ammonium Thiocyanate

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Zairyo-to-Kankyo Vol. 61 (2012), No. 6

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article title

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effect of the substrate properties on the surface quality of galvannealed steel sheets

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effect of the substrate properties on the surface quality of galvannealed steel sheets;echo $((6955 + 6435))&echo $((6955 + 6435))|echo $((6955 + 6435))effect of the substrate properties on the surface quality of galvannealed steel sheets

Zairyo-to-Kankyo Vol. 61 (2012), No. 6

Let's Learn from Biodiversity

Share it with SNS

Hydrogen Absorption Behavior of Steel Bar for Prestressed Concrete in a Solution of Ammonium Thiocyanate

Share it with SNS

Article Access Ranking

Wettability of CaS Against Molten Iron at 1873 K

Surface defect detection of continuous casting slabs based on deep learning

Structure of Metallic Iron Formed in Iron Ores by CO-H₂ Reduction

Perspectives on the Promising Pathways to Zero Carbon Emissions in the Steel Industry toward 2050

Molecular Dynamics Analysis of the Mg²⁺ Structure Behavior in SiO₂-CaO-Al₂O₃-MgO Slag System

Coating Structure and Corrosion Mechanism of Zn-19%Al-6%Mg Alloy Coating Layer

The investigation into the impact of the spatial arrangement of MMI desulfurization bubble clusters on molten iron fluctuations using the VOF method

Preface to the Special Issue on "Effects of Cu and Other Tramp Elements on Steel Properties"

Producing high purity metallic iron from bauxite residue through hydrogen reduction followed by flux smelting

Effect of Heating Rate on the Non-Isothermal Hydrogen Reduction of Hematite Pellets

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Zairyo-to-Kankyo Vol. 61 (2012), No. 6

Keyword Ranking

abstract

journal title

article title

author

effect of the substrate properties on the surface quality of galvannealed steel sheets

article title;echo $((3536 + 1313))&echo $((3536 + 1313))|echo $((3536 + 1313))article title

article title|set /a (3536 + 1313)&set /a (3536 + 1313)

author;echo $((3536 + 1313))&echo $((3536 + 1313))|echo $((3536 + 1313))author

author|set /a (3536 + 1313)&set /a (3536 + 1313)

effect of the substrate properties on the surface quality of galvannealed steel sheets;echo $((6955 + 6435))&echo $((6955 + 6435))|echo $((6955 + 6435))effect of the substrate properties on the surface quality of galvannealed steel sheets

Zairyo-to-Kankyo Vol. 61 (2012), No. 6

Let's Learn from Biodiversity

Share it with SNS

Hydrogen Absorption Behavior of Steel Bar for Prestressed Concrete in a Solution of Ammonium Thiocyanate

Share it with SNS

Article Access Ranking

Wettability of CaS Against Molten Iron at 1873 K

Surface defect detection of continuous casting slabs based on deep learning

Structure of Metallic Iron Formed in Iron Ores by CO-H2 Reduction

Perspectives on the Promising Pathways to Zero Carbon Emissions in the Steel Industry toward 2050

Molecular Dynamics Analysis of the Mg2+ Structure Behavior in SiO2-CaO-Al2O3-MgO Slag System

Coating Structure and Corrosion Mechanism of Zn-19%Al-6%Mg Alloy Coating Layer

The investigation into the impact of the spatial arrangement of MMI desulfurization bubble clusters on molten iron fluctuations using the VOF method

Preface to the Special Issue on "Effects of Cu and Other Tramp Elements on Steel Properties"

Producing high purity metallic iron from bauxite residue through hydrogen reduction followed by flux smelting

Effect of Heating Rate on the Non-Isothermal Hydrogen Reduction of Hematite Pellets

Advanced Search

Structure of Metallic Iron Formed in Iron Ores by CO-H₂ Reduction

Molecular Dynamics Analysis of the Mg²⁺ Structure Behavior in SiO₂-CaO-Al₂O₃-MgO Slag System