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材料と環境
Vol. 71 (2022), No. 2

材料と環境 Vol. 71 (2022), No. 2

オンライン版ISSN:	1881-9664
冊子版ISSN:	0917-0480
発行機関:	Japan Society of Corrosion Engineering

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キーワードランキング

02 Apr. (Last 30 Days)

材料と環境 Vol. 71 (2022), No. 2

「いちばんたいせつなことは，目に見えない」

天谷賢治

pp. 33-34

DOI:

10.3323/jcorr.71.33

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「いちばんたいせつなことは，目に見えない」

Bibtex

Ris

気液交番環境の炭素鋼の腐食速度に及ぼす酸素濃度の影響

大谷恭平, 上野文義, 加藤千明

pp. 40-45

DOI:

10.3323/jcorr.71.40

抄録

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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気液交番環境の炭素鋼の腐食速度に及ぼす酸素濃度の影響

Bibtex

Ris

全表面観察によるステンレス鋼におけるピット起点となる非金属介在物の統計的解析

江口健一郎

pp. 46-56

DOI:

10.3323/jcorr.71.46

抄録

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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論文タイトル

全表面観察によるステンレス鋼におけるピット起点となる非金属介在物の統計的解析

Bibtex

Ris

論文アクセスランキング

02 Apr. (Last 30 Days)

Wettability of CaS Against Molten Iron at 1873 K

ISIJ International Vol.65(2025), No.2
Ag–Sn合金の一方向凝固実験による包晶凝固の解析

鉄と鋼早期公開
Perspectives on the Promising Pathways to Zero Carbon Emissions in the Steel Industry toward 2050

ISIJ International Vol.65(2025), No.2
Thermodynamic Calculation of Grain Boundary Composition in Ferritic Steels and Its Application for Controlling the Hall–Petch Coefficient

ISIJ International 早期公開
Hydrogen-induced vacancy formation process in austenitic stainless steel 304

ISIJ International 早期公開
STEM-EDSおよび3DAPによる多成分系カルシウムフェライトの還元組織観察

鉄と鋼早期公開
Effects of interface anisotropy on the solidification morphology of zinc alloys and development of data assimilation for their estimation

ISIJ International 早期公開
Chemical State Evolution of Iron Ore Sinter Investigated by Wide-Area Imaging XAFS

ISIJ International 早期公開
PREFACE

MATERIALS TRANSACTIONS Vol.54(2013), No.6
Bend Failure Mechanism of Zinc Coated Advanced High Strength Steel

ISIJ International Vol.58(2018), No.8

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材料と環境 Vol. 71 (2022), No. 2

キーワードランキング

blast furnace

ferrocoke

high-strength steel alloys

isij international

slag/metal reactions in steelmaking

tramp elements

trip steel martensitic transformation

bend

continuous casting slab

crystallization

材料と環境 Vol. 71 (2022), No. 2

「いちばんたいせつなことは，目に見えない」

SNSによる共有

気液交番環境の炭素鋼の腐食速度に及ぼす酸素濃度の影響

SNSによる共有

全表面観察によるステンレス鋼におけるピット起点となる非金属介在物の統計的解析

SNSによる共有

論文アクセスランキング

Wettability of CaS Against Molten Iron at 1873 K

Ag–Sn合金の一方向凝固実験による包晶凝固の解析

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

Thermodynamic Calculation of Grain Boundary Composition in Ferritic Steels and Its Application for Controlling the Hall–Petch Coefficient

Hydrogen-induced vacancy formation process in austenitic stainless steel 304

STEM-EDSおよび3DAPによる多成分系カルシウムフェライトの還元組織観察

Effects of interface anisotropy on the solidification morphology of zinc alloys and development of data assimilation for their estimation

Chemical State Evolution of Iron Ore Sinter Investigated by Wide-Area Imaging XAFS

PREFACE

Bend Failure Mechanism of Zinc Coated Advanced High Strength Steel

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