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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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Keyword Ranking

30 Nov. (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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Article Title

Let's Learn from Biodiversity

Bibtex

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

Keyword Ranking

blast furnace charging

神戸製鋼 s低減技術

dual phase steel

intergranular oxidation

wuhan

10.2355/isijinternational.50.1095

blast furnace

charging

coating roller

kr脱硫インペラー

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

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

Integrated Steelworks that Reduce CO₂ Emissions by More Than 80% ─ Challenge for Carbon-Neutral Integrated Steelworks ─

Progress of Strip Casting Technology for Steel; Historical Developments

Competitive Substitution of CaO for MnO in CaO–Al₂O₃–SiO₂–MnO Oxides: Atomic-scale Insights into Structural Depolymerization and Inclusion Properties via Molecular Dynamics Simulations

Microstructures and Reduction Properties of High CaO Concentration Sintered Ore

Effect of Baffles on the Mixing of Liquid and Particles in a Mechanically Stirred Vessel

Corrosion Mechanism of Ag in H₂S/NO₂ Mixed Gas

Advanced Coil Cooling Model Incorporating Layering and Interface Effects of Strip Windings

A new simulation characterization method to reveal the causes of cracking for cast iron cooling staves

Preface to the Special Topic on CCU Technology for Reducing CO₂ Emissions in Ironmaking Processes

Advanced Search

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

Keyword Ranking

blast furnace charging

神戸製鋼 s低減技術

dual phase steel

intergranular oxidation

wuhan

10.2355/isijinternational.50.1095

blast furnace

charging

coating roller

kr脱硫 インペラー

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

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

Integrated Steelworks that Reduce CO2 Emissions by More Than 80% ─ Challenge for Carbon-Neutral Integrated Steelworks ─

Progress of Strip Casting Technology for Steel; Historical Developments

Competitive Substitution of CaO for MnO in CaO–Al2O3–SiO2–MnO Oxides: Atomic-scale Insights into Structural Depolymerization and Inclusion Properties via Molecular Dynamics Simulations

Microstructures and Reduction Properties of High CaO Concentration Sintered Ore

Effect of Baffles on the Mixing of Liquid and Particles in a Mechanically Stirred Vessel

Corrosion Mechanism of Ag in H2S/NO2 Mixed Gas

Advanced Coil Cooling Model Incorporating Layering and Interface Effects of Strip Windings

A new simulation characterization method to reveal the causes of cracking for cast iron cooling staves

Preface to the Special Topic on CCU Technology for Reducing CO2 Emissions in Ironmaking Processes

Advanced Search

kr脱硫インペラー

Integrated Steelworks that Reduce CO₂ Emissions by More Than 80% ─ Challenge for Carbon-Neutral Integrated Steelworks ─

Competitive Substitution of CaO for MnO in CaO–Al₂O₃–SiO₂–MnO Oxides: Atomic-scale Insights into Structural Depolymerization and Inclusion Properties via Molecular Dynamics Simulations

Corrosion Mechanism of Ag in H₂S/NO₂ Mixed Gas

Preface to the Special Topic on CCU Technology for Reducing CO₂ Emissions in Ironmaking Processes