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Zairyo-to-Kankyo
Vol. 71 (2022), No. 2

Zairyo-to-Kankyo Vol. 71 (2022), No. 2

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

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Vol. 74 (2025)
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18 May. (Last 30 Days)

Zairyo-to-Kankyo Vol. 71 (2022), No. 2

“What is essential is invisible to the eye.”

Kenji Amaya

pp. 33-34

DOI:

10.3323/jcorr.71.33

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Article Title

“What is essential is invisible to the eye.”

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Ris

Effect of Oxygen Concentration on Corrosion Rate of Carbon Steel in Air/solution Alternating Condition

Kyohei Otani, Fumiyoshi Ueno, Chiaki Kato

pp. 40-45

DOI:

10.3323/jcorr.71.40

Abstract

The purpose of this study is to investigate the effect of oxygen concentration in the air on the corrosion rate of carbon steel in an air/solution alternating environment in the low oxygen concentration range and to clarify the corrosion rate and corrosion mechanism of carbon steel depending on the oxygen concentration in air by the mass change of specimens before and after the corrosion test and observing the iron rust layer formed on the surface of carbon steel. The corrosion rate increases with increasing oxygen concentration in the air, and the gradient of the corrosion rate decreases gradually. The maximum erosion depth increased with increasing oxygen concentration except for the case of 1％ oxygen concentration, however, the maximum erosion depth for 1％ oxygen concentration was larger than that for 5％ air oxygen concentration. It was clarified from the cross-sectional observation that the reason for the specific increase in the maximum erosion depth only when the oxygen concentration was 1％ due to the localized corrosion of carbon steel.

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Effect of Oxygen Concentration on Corrosion Rate of Carbon Steel in Air/solution Alternating Condition

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Statistical Analysis of Nonmetallic Inclusions as Initiation Sites of Pitting Corrosion for Stainless Steel by All-surface Survey

Kenichiro Eguchi

pp. 46-56

DOI:

10.3323/jcorr.71.46

Abstract

All nonmetallic inclusions on the surface of a stainless steel sample were analyzed with a scanning electron microscope with a function of automatically observing and analyzing nonmetallic inclusions. The effect of the inclusion type and size on the tendency of pit initiation was then quantitatively evaluated by observing the pits generated on the sample surface. It was found that the probability of stable pit growth increased as the major axis of the inclusions increased, but no effect of the inclusion type was observed. However, an effect of the inclusion type on the tendency of repassivation pit initiation was observed.

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Article Title

Statistical Analysis of Nonmetallic Inclusions as Initiation Sites of Pitting Corrosion for Stainless Steel by All-surface Survey

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Zairyo-to-Kankyo Vol. 71 (2022), No. 2

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. 71 (2022), No. 2

“What is essential is invisible to the eye.”

Share it with SNS

Effect of Oxygen Concentration on Corrosion Rate of Carbon Steel in Air/solution Alternating Condition

Share it with SNS

Statistical Analysis of Nonmetallic Inclusions as Initiation Sites of Pitting Corrosion for Stainless Steel by All-surface Survey

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

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Zairyo-to-Kankyo Vol. 71 (2022), No. 2

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. 71 (2022), No. 2

“What is essential is invisible to the eye.”

Share it with SNS

Effect of Oxygen Concentration on Corrosion Rate of Carbon Steel in Air/solution Alternating Condition

Share it with SNS

Statistical Analysis of Nonmetallic Inclusions as Initiation Sites of Pitting Corrosion for Stainless Steel by All-surface Survey

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