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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

13 Oct. (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

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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

Keyword Ranking

red mud

swirling flow effect

カーボンニュートラル製鉄

carbon combustion rate chemical reaction diffusion

iron extraction from red mud primarily

miyano

ohno kohichiro

低温用鋼

大野光一郎

* kim et al. isij international vol. 52, pp. 199-206 (2013)

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

Growth, Removal, and Agglomeration of Various Type of Oxide Inclusions in Molten Steel

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

Capillary Infiltration of Slag in Hydrogen-Direct Reduced Iron and Influence on Melting

Novel application of photoelectron yield spectroscopy to the detection of hydrogen in steel under atmospheric conditions

Impact of Bosh Gas Volume on the Competitive Interaction Between CO and H₂ Reduction Reactions and Carbon-Saving Potential in the Top Gas Recycling Blast Furnace

Continuous recrystallization of ferrite matrix manifested by cementite pinning in deformed pearlite

Formation Behavior of Plating Films of Zn−V Composite Electroplated Steel Sheets and its Heat Dissipation Characteristics

Numerical analysis of low-carbon blast furnace operations by coke oven and hydrogen gases injection in COURSE50 experimental blast furnace

Advancements in the development, industrial production, and applications of ultra-high nitrogen low alloy steel

Advanced Search

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

Keyword Ranking

red mud

swirling flow effect

カーボンニュートラル 製鉄

carbon combustion rate chemical reaction diffusion

iron extraction from red mud primarily

miyano

ohno kohichiro

低温用鋼

大野光一郎

* kim et al. isij international vol. 52, pp. 199-206 (2013)

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

Growth, Removal, and Agglomeration of Various Type of Oxide Inclusions in Molten Steel

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

Capillary Infiltration of Slag in Hydrogen-Direct Reduced Iron and Influence on Melting

Novel application of photoelectron yield spectroscopy to the detection of hydrogen in steel under atmospheric conditions

Impact of Bosh Gas Volume on the Competitive Interaction Between CO and H2 Reduction Reactions and Carbon-Saving Potential in the Top Gas Recycling Blast Furnace

Continuous recrystallization of ferrite matrix manifested by cementite pinning in deformed pearlite

Formation Behavior of Plating Films of Zn−V Composite Electroplated Steel Sheets and its Heat Dissipation Characteristics

Numerical analysis of low-carbon blast furnace operations by coke oven and hydrogen gases injection in COURSE50 experimental blast furnace

Advancements in the development, industrial production, and applications of ultra-high nitrogen low alloy steel

Advanced Search

カーボンニュートラル製鉄

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

Impact of Bosh Gas Volume on the Competitive Interaction Between CO and H₂ Reduction Reactions and Carbon-Saving Potential in the Top Gas Recycling Blast Furnace