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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. 73 (2024)
1. No.2
2. No.1
Vol. 72 (2023)
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2. No.11
3. No.10
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19 Apr. (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.”

Bibtex

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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Ris

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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Ris

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

Keyword Ranking

内藤誠章

仁井谷冷却 camp-isij

deformed steel bar

high carbon steel crack corner

prediction blast furnace

centrifugal flow tundish

cu 脆化 ni

dissolution of carbon-containing species in cao-sio2-al2o3 slag

embr

establishment of evaluation and prediction system of comprehensive state based on big data technology in a commercial blast furnace

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

Interactions between interstitial and substitutional elements of solute diatomic and triatomic clusters in α-Fe from first-principles calculations

The Crystal Structure of As-quenched Fe–C Martensite

Thermodynamic Analysis on Slag/Metal Reactions in Steelmaking Process Using Direct Reduced Iron and Steel Scraps

Effect of Paint Baking Treatment on Mechanical Properties of Resistance Spot Welded Q&P 980 Steel

Comparison between the Lüders and Portevin–Le Chatelier bands in the low-strain-rate tensile testing of ultralow-carbon ferritic steel

Production of silicon by microwave heating

Large Eddy Simulation on Flow Structure in Centrifugal Flow Tundish

Basic Study on Flow Behavior of Molten Steel in a Continuous Casting Machine in the Presence of Static Magnetic Field Parallel to the Slab Width Direction

Attitude Control of a 2-wheel Satellite by Using a Time-State Control Form

Representative Technologies for Hot Charging and Direct Rolling in Global Steel Industry

Advanced Search

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

Keyword Ranking

内藤誠章

仁井谷 冷却 camp-isij

deformed steel bar

high carbon steel crack corner

prediction blast furnace

centrifugal flow tundish

cu 脆化 ni

dissolution of carbon-containing species in cao-sio2-al2o3 slag

embr

establishment of evaluation and prediction system of comprehensive state based on big data technology in a commercial blast furnace

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

Interactions between interstitial and substitutional elements of solute diatomic and triatomic clusters in α-Fe from first-principles calculations

The Crystal Structure of As-quenched Fe–C Martensite

Thermodynamic Analysis on Slag/Metal Reactions in Steelmaking Process Using Direct Reduced Iron and Steel Scraps

Effect of Paint Baking Treatment on Mechanical Properties of Resistance Spot Welded Q&P 980 Steel

Comparison between the Lüders and Portevin–Le Chatelier bands in the low-strain-rate tensile testing of ultralow-carbon ferritic steel

Production of silicon by microwave heating

Large Eddy Simulation on Flow Structure in Centrifugal Flow Tundish

Basic Study on Flow Behavior of Molten Steel in a Continuous Casting Machine in the Presence of Static Magnetic Field Parallel to the Slab Width Direction

Attitude Control of a 2-wheel Satellite by Using a Time-State Control Form

Representative Technologies for Hot Charging and Direct Rolling in Global Steel Industry

Advanced Search

仁井谷冷却 camp-isij