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

Keyword Ranking

blast furnace

thermo dynamics and kinetics of coal gasification in a liquid iron bath

improvement in mechanical properties of a high-strength hot-rolled automobile steel

effect of {110} < 229 >

isij international vol. 61 (2021)

k. sawada

machine learning

maruyama k, sawada k, koike j i. strengthening mechanisms of creep resistant tempered martensitic steel

possible relationship between energy dissipation and agitation in steel processing operations.

segeregation prevention orebedding

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

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

Effects of High Magnetic Field on Microstructure and Mechanical Property of Medium Mn Steels Tempered at Low-Temperature after Deep Cryogenic Treatment

Progress in modelling microstructural evolution and changes of mechanical properties for hot rolled steels -the path from semi-empirical through machine learning to industrial foundation models

Ammonia as a Green Energy Carrier to Lower Blast Furnace CO₂ Emissions

日本鉄鋼協会第113回講演大会講演概要集(I) その4

Crater End Detection in Continuous Casting by Longitudinal and Shear Wave Hybrid Technique with High Sensitivity EMAT

Solidification Characteristics and TiC Formation Behaviour in Alloy 800H

High temperature zinc vapor confinement in snout by using wind curtain

日本鉄鋼協会第113回講演大会講演概要集(I) その2

Advanced Search

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

Keyword Ranking

blast furnace

thermo dynamics and kinetics of coal gasification in a liquid iron bath

improvement in mechanical properties of a high-strength hot-rolled automobile steel

effect of {110} < 229 >

isij international vol. 61 (2021)

k. sawada

machine learning

maruyama k, sawada k, koike j i. strengthening mechanisms of creep resistant tempered martensitic steel

possible relationship between energy dissipation and agitation in steel processing operations.

segeregation prevention orebedding

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

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

Effects of High Magnetic Field on Microstructure and Mechanical Property of Medium Mn Steels Tempered at Low-Temperature after Deep Cryogenic Treatment

Progress in modelling microstructural evolution and changes of mechanical properties for hot rolled steels -the path from semi-empirical through machine learning to industrial foundation models

Ammonia as a Green Energy Carrier to Lower Blast Furnace CO2 Emissions

日本鉄鋼協会第113回講演大会 講演概要集(I) その4

Crater End Detection in Continuous Casting by Longitudinal and Shear Wave Hybrid Technique with High Sensitivity EMAT

Solidification Characteristics and TiC Formation Behaviour in Alloy 800H

High temperature zinc vapor confinement in snout by using wind curtain

日本鉄鋼協会第113回講演大会 講演概要集(I) その2

Advanced Search

Ammonia as a Green Energy Carrier to Lower Blast Furnace CO₂ Emissions

日本鉄鋼協会第113回講演大会講演概要集(I) その4

日本鉄鋼協会第113回講演大会講演概要集(I) その2