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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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29 Aug. (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

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isij international, vol. 45, no. 2

blast furnace

ctod

ferro-coke

tetsu-to-hagane

ladle steel making

martensi deformation

watanabe toru

ataru uchida

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

Copper removal of liquid steel containing 0.25 % carbon using Fe₂O₃-CaCl₂-SiO₂ flux

Finite Element Analysis of Bubble Growth and Particle Swelling during Coal Pyrolysis

Corrosion Behavior of Carbon Steel under Soil Drying Conditions

Cold Spot Joining of 980 MPa-class Ultra-high Strength Steel

Factors Affecting Generation of Iron Fines in Cold Sheet Rolling of Steel

Experimental Study on Heat Transfer Characteristics of a Moving Single-Nozzle Jet Impingement

Combination Effect of Premixing Conditions and Iron Ore Size Distribution in Sintered Ore Granulation Process with Intensive Mixer

Evaluation of Feature Selection Methods for Oxygen Supply Prediction in BOF Steelmaking

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

Keyword Ranking

abc123

isij international, vol. 45, no. 2

blast furnace

ctod

ferro-coke

tetsu-to-hagane

ladle steel making

martensi deformation

watanabe toru

ataru uchida

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

Copper removal of liquid steel containing 0.25 % carbon using Fe2O3-CaCl2-SiO2 flux

Finite Element Analysis of Bubble Growth and Particle Swelling during Coal Pyrolysis

Corrosion Behavior of Carbon Steel under Soil Drying Conditions

Cold Spot Joining of 980 MPa-class Ultra-high Strength Steel

Factors Affecting Generation of Iron Fines in Cold Sheet Rolling of Steel

Experimental Study on Heat Transfer Characteristics of a Moving Single-Nozzle Jet Impingement

Combination Effect of Premixing Conditions and Iron Ore Size Distribution in Sintered Ore Granulation Process with Intensive Mixer

Evaluation of Feature Selection Methods for Oxygen Supply Prediction in BOF Steelmaking

Advanced Search

Copper removal of liquid steel containing 0.25 % carbon using Fe₂O₃-CaCl₂-SiO₂ flux